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1
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ุจุณู… ุงู„ู„ู‡ ุงู„ุฑุญู…ู† ุงู„ุฑุญูŠู… ุงู„ุณู„ุงู… ุนู„ูŠูƒู… ูˆุฑุญู…ุฉ ุงู„ู„ู‡
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ูˆุจุฑูƒุงุชู‡ุŒ ู‡ู†ูƒู…ู„ ููŠ ู…ู‡ุงุฌู…ุฉ ุชุตู…ูŠู… ุงู„ุฃู„ุงุชุŒ ุงุญู†ุง ู„ุญุฏ
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ุชู„ู‚ุงุก ููŠ ุงู„ .. ููŠ ุงู„ dynamic for .. dynamic ุงูˆ ..
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design for dynamic loading ู‡ู†ุญูƒูŠ ู„ู‡ู… ููŠ ุญุงู„ุฉ ุงู„ู„ูŠ
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ู…ู…ูƒู† ุฃู†ุฏูŠ combination of loading modes ูŠุนู†ูŠ ู…ู…ูƒู†
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ูŠูƒูˆู† ุนู†ุฏู‰ ุงูŠ combination ู…ู† ุงู„ bending ุงูˆ ุงู„ axle
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ุงูˆ ุงู„ torsion ุงูˆ ุงู„ transverse ุดูŠุฑ ุจุดูƒู„ ุนุงู… ุณุงุฆู„
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ุงู„ูุชูŠูƒ ู…ู…ูƒู† ุงุตู†ูู‡ุง ุนู„ู‰ ุชู„ุช ู…ุณุชูˆูŠุงุช ุงูˆู„ุง complete
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reversing simple loads ููŠ ุงู„ุญุงู„ุฉ ู‡ุฐู‡ ุงุญู†ุง ุงุชุนู…ู„ู†ุง
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ู…ุน load ู…ุน ู†ูˆุน ู…ุนูŠู† ู…ู† ุงู„ุฃุญู…ุงู„ ุจุณ ุงูŠุด ุงู„ู†ูˆุน
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completely reversed ุจูŠูƒูˆู† ู…ูˆุฌุจ ุณุงู„ุจ ู…ูˆุฌุจ ุณุงู„ุจ
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00:00:56,650 --> 00:01:01,770
ุจูŠูƒูˆู† ู†ูˆุน ูˆุงุญุฏ ู…ู† ุงู„ุฃุญู…ุงู„ ูˆุชุนู…ู„ู†ุง ุจุฑุถู‡ ู…ุน
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00:01:01,770 --> 00:01:05,910
fluctuating simple loads ูŠุนู†ูŠ ุนู†ุฏูŠ ู†ูˆุน ูˆุงุญุฏ ู…ู†
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ุงู„ุฃุญู…ุงู„ูŠุง axle ูŠุง bending ูŠุง .. ูŠุง ุงู„ torsion ูˆ
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ุญุณุจู†ุง ุงู„ .. ุงู„ .. ุงู„ main stress ูˆ ุงู„ alternating
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00:01:17,920 --> 00:01:21,960
stress ูˆูƒู…ู„ู†ุง ุนุงุฏูŠ ุงู„ุญุงู„ุฉ ุงู„ุชุงู„ุชุฉ ุงู„ู„ูŠ ุญู†ุง ู†ุญูƒูŠ
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00:01:21,960 --> 00:01:25,700
ุนู†ู‡ุง ุงู„ูŠูˆู… ู‡ูŠ combination of loading modes ุจูŠูƒูˆู†ุด
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ุนู†ุฏู‰ ู†ูˆุน ูˆุงุญุฏ ู…ู† ุงู„ุฃุญู…ุงู„ ุจูŠูƒูˆู† ุฃูƒุชุฑ ู…ู† ุฎู„ูŠุท ู…ู†
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ุงู„ุฃุญู…ุงู„ ุจูŠูƒูˆู† ุนู†ุฏู‰bending ู…ุน axel ุงูˆ binding ู…ุน
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00:01:33,650 --> 00:01:36,470
torsion ุงูˆ ุงูŠ combination ู…ู† ุงู†ูˆุงุน ุงู„ุฃุญู…ุงู„
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ุงู„ู…ุฎุชู„ูุฉ ุฒุงุฆุฏ ุงู†ู‡ ู…ุด completely reverse ุจูŠูƒูˆู† ุนู†ุฏูŠ
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ูŠุนู†ูŠ fluctuating combination of loading modes
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ู‡ู†ุดูƒูˆู ู†ุชุนุงู…ู„ ู…ุนุงู‡ุง for combined loading ู‡ู†ุณุชุฎุฏู…
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ุงู„ distortion energy theorem ุนุดุงู† ู†ุฌู…ุนุงู„ .. ุงู„
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combined loads ูŠุนู†ูŠ ุงุญู†ุง ู‡ู†ุญุณุจ ุงู„ sigma a prime ูˆ
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ุงู„ sigma mean prime ูŠุนู†ูŠ ู‡ูƒูˆู† ุฏูŠ two stress
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00:02:13,620 --> 00:02:16,860
components ูˆุงุญุฏุฉ mean component ุงู„ู„ูŠ ู‡ูŠ mean von
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00:02:16,860 --> 00:02:22,700
Mises ูˆ ูˆุงุญุฏุฉ alternating von Mises component ุงุญู†ุง
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ู„ูˆ ูƒู†ุง ู†ุญุณุจ ุงู„ von Mises ูƒู†ุง ู†ุญุท ูƒู„ ุงู„ุฃุญู…ุงู„ ุฌูˆุงู‡ุง
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apply a stress concentration factor to each type
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of stress ู„ู…ุง ู†ุฌู„ูŠ ุฃุญุณุจ ุงู„ .. ุงู„ .. ุงู„ volume
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minus ุงู„ stress ุฅุฐุง ุงู„ volume minus ูŠุญุชูˆูŠ ุนู„ู‰ axle
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00:02:48,350 --> 00:02:52,370
ูˆ bending ูˆ ุงู„ torsion ุจุฏู‡ ุฃุญุท ุงู„ .. ุงู„ stress
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00:02:52,370 --> 00:02:56,270
concentration factor ุงู„ู…ู†ุงุธุฑ ู„ูƒู„ ุญุงู„ุฉ ู…ู† ุงู„ state
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00:02:56,270 --> 00:03:00,460
ูˆ ุงู„ stressู„ู„ load factor ู„ุงู† load factor ุทุจุนุง
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00:03:00,460 --> 00:03:04,180
ุนู†ุฏู‰ ุนู†ุฏู‰ ู…ุซู„ุง ุจูŠูƒูˆู† ุนู†ุฏู‰ axle ูˆุนู†ุฏู‰ bending ูˆุนู†ุฏู‰
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00:03:04,180 --> 00:03:10,580
torsion ู‡ู†ุญุท KC ุจุณุงูˆูŠุฉ ูˆุงุญุฏ ุงู„ torsion load factor
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is already included ููŠ ุงู„ von Mises equations ุงู„
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von Mises equation ู„ู…ุง ู†ูƒูˆู† ู†ุญุณุณ sigma prime ูƒุงู†ุช
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ุงู„ู…ุนุงุฏู„ุฉ ุงู„ุฃุณุงุณูŠุฉ sigma X square ุฒูŠ ุงู„ุชู„ุงุชุฉ ุชุงูˆ
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00:03:25,760 --> 00:03:31,190
square ุงู„ูƒู„ ู‚ุต ู†ุตูุงู„ alternating voluminous
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component ู‡ุชูƒูˆู† ููŠ ุนู†ุฏูŠ .. ู„ุงุญุธ ููŠ ุนู†ุฏูŠ .. ุทู„ุน ุดูƒู„
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00:03:34,310 --> 00:03:38,590
ู…ุนุงุฏู„ .. ุนู†ุฏูŠ bending ูˆุนู†ุฏูŠ axial ู…ุง ู‡ูˆ ุงู„ bending
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00:03:38,590 --> 00:03:40,990
ูˆ ุงู„ axial ุจูŠุนู…ู„ูˆุง normal .. normal stress ุจุฌู…ุนู‡ู…
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00:03:40,990 --> 00:03:49,140
ู…ุน ุจุนุถ ุตุญุŸู‡ูˆ ุนู†ุฏูŠ ู‡ู†ุง ุงู„ shear stress component
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00:03:49,140 --> 00:03:53,720
ุนู†ุฏู†ุง ู‡ู†ุง ุทุจุนุง I apply ุฅุฐุง ูƒุงู† ุนู†ุฏูŠ bending I
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apply ุงู„ KF ุจุชุงุนุฉ ุงู„ bending ูˆ I apply ุงู„ KF ุจุชุงุนุฉ
48
00:03:57,580 --> 00:04:02,740
ุฅูŠุด ุงู„ axial ูˆ I apply ุงู„ KF ุจุชุงุนุฉ ุงู„ torsion ู†ูุณ
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00:04:02,740 --> 00:04:10,080
ุงู„ุฃุดูŠ ููŠ ุญุงู„ุฉ ุฅูŠุด ุงู„ mean von Mises stressููŠ ุนู†ุฏู‰
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00:04:10,080 --> 00:04:13,760
ุงู„ู„ู‰ ู‡ูˆ ุงู„ component ุจุชุงุนุฉ ุงู„ normal stress ุงู„ู„ู‰
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00:04:13,760 --> 00:04:18,420
ู…ูƒูˆู†ู‡ ู…ู† ุงู„ bending ูˆ ุงู„ axial component ูˆ ุงู„
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00:04:18,420 --> 00:04:22,180
shear component ุงู„ axial component ู…ูƒูˆู†ู‡ ู…ู† ุงู„
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00:04:22,180 --> 00:04:28,640
bending ูˆ ุงู„ axial I apply ุงู„ stress concentration
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00:04:28,640 --> 00:04:31,540
factor for bending ูˆ ุงู„ stress concentration
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00:04:31,540 --> 00:04:34,360
factor ุงู„ู„ู‰ ู…ูˆุฌูˆุฏ for axial ูˆ ุงู„ stress
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concentration factor for torsion
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ุงู„ู€ distortion energy theory still applies for the
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00:04:49,290 --> 00:04:54,890
check of static yielding ูŠุนู†ูŠ
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00:04:54,890 --> 00:04:59,590
ู‡ุญุตู„ ุนู„ู‰ ุงู„ von .. ุงู„ maximum von mice stress ู„ุฃู†
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00:04:59,590 --> 00:05:03,390
stress ุจุชุบูŠุฑ ู…ู† minimum value ู„ maximum value ุณูˆุงุก
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00:05:03,390 --> 00:05:09,100
ูƒุงู†ุณูˆุงุก ูƒุงู† ุงู„ู„ูŠ ู‡ูˆ normal stress ุฃูˆ shear stress
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00:05:09,100 --> 00:05:12,900
ูู…ุนู†ุงุชู‡ ุงู„ sigma prime maximum ู‡ุชูƒูˆู† sigma a ุฒูŠ
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00:05:12,900 --> 00:05:16,580
sigma mean ู„ูƒู„ ุชุฑุจูŠุน ุฒูŠ ุงู„ุชู„ุงุชุฉ tau a ุฒูŠ ุงู„ tau m
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00:05:16,580 --> 00:05:20,480
ู„ูƒู„ ุชุฑุจูŠุน ู„ูƒู„ ู†ุต ุจุนุฏูŠู† ุจุญุณุจ ุงู„ yield factor safety
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00:05:20,480 --> 00:05:27,640
ุจุณูˆุก ุฃุณูˆุงูŠ ุนู„ู‰ sigma prime maximum ุฃูˆ ูƒุชู‚ุฑูŠุจ ุจุญูƒูŠ
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sigma prime maximum ุจุณูˆุงุก sigma prime alternating
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00:05:30,720 --> 00:05:34,400
ุฒูŠ sigma prime mean ู‡ุฐุง ููŠ ุญุงู„ุฉ check against
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00:05:34,400 --> 00:05:47,620
yieldingู†ุดูˆู ู…ู† ุฎู„ุงู„ ู…ุซุงู„ a shaft
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is made of 42 x 4 mm AISI 1018 cauldron steel
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00:05:59,300 --> 00:06:04,040
tubingand has a six millimeter diameter hole
71
00:06:04,040 --> 00:06:10,080
drilled transversely through it ูŠุนู†ูŠ ุนู…ูˆุฏ ู…ุตู†ุน ู…ู†
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00:06:10,080 --> 00:06:22,600
ุงู†ุจูˆุจ ูˆุงู„ุงู†ุจูˆุจ
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00:06:22,600 --> 00:06:24,500
ููŠู‡ ุซู‚ูˆุจ ู…ุณุชุนุฑุถ
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00:06:34,720 --> 00:06:46,840
ุงู„ุจูˆุจ ู‚ุทุฑ ุงู„ุฎุงุฑุฌูŠ ุงุชู†ูŠู† ูˆุงุฑุจุนูŠู† ูˆุงู„ุณู…ุงูƒุฉ
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00:06:46,840 --> 00:06:50,880
ุงุฑุจุนุฉ
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00:06:50,880 --> 00:06:55,120
ู…ู„ูŠ ู…ุตู†ูˆุน
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00:06:55,120 --> 00:07:01,060
ู…ู† ุงู„ material ู‡ูŠ AISI
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00:07:05,370 --> 00:07:19,110
ุนุดุฑุฉ ุชู…ุงู†ุชุงุด ูƒู„ ุฏุฑูˆู† steel ูˆ
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00:07:19,110 --> 00:07:23,950
ุงู„ hall ู‚ุทุฑุฉ ุณุชุฉ
80
00:07:23,950 --> 00:07:24,210
ู…ูŠู„ูŠ
81
00:07:37,780 --> 00:07:41,940
estimate the factor of safety guarding against
82
00:07:41,940 --> 00:07:46,060
fatigue and static failures using the Godman and
83
00:07:46,060 --> 00:07:49,240
Langer failure criteria for the following loading
84
00:07:49,240 --> 00:08:03,200
conditions ู†ุญุณุจ ุงู„ุงู† F ูˆุงู„ุงู† Y ุงู„
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00:08:03,200 --> 00:08:11,620
loading conditionุงู„ุดูุช ูŠุชุญูˆู„ ูŠุชุญูˆู„
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00:08:11,620 --> 00:08:16,820
ุจุฏูˆุฑ ุจุฏูˆุฑ
87
00:08:16,820 --> 00:08:28,900
ุจุฏูˆุฑ
88
00:08:28,900 --> 00:08:32,180
ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ
89
00:08:32,180 --> 00:08:32,200
ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ
90
00:08:32,200 --> 00:08:33,680
ุจุฏูˆุฑ ุจุฏูˆุฑ ุจุฏูˆุฑ
91
00:08:39,500 --> 00:08:47,160
tau ุจุงู„ุณุงูˆุฉ ุจุชุบูŠุฑ ู…ู† ู†ุงู‚ุต ู…ุงุฆุฉ ูˆ ุนุดุฑูŠู† ู†ุงู‚ุต ู…ุงุฆุฉ ูˆ
92
00:08:47,160 --> 00:08:58,100
ุนุดุฑูŠู† to plus ู…ุงุฆุฉ ูˆ ุนุดุฑูŠู† ู†ูŠูˆุชู† ู…ุชุฑ ููŠ
93
00:08:58,100 --> 00:09:02,540
ู†ูุณ ุงู„ูˆู‚ุช ูˆ ุงุชุนุฑุถ ู„ complete reversed bending ุงู…
94
00:09:07,050 --> 00:09:13,750
ุจุชุณุงูˆูŠ ู…ู† ู…ุงูŠู†ูˆุณ ู…ูŠุฉ ูˆ ุฎู…ุณูŠู† to
95
00:09:13,750 --> 00:09:28,650
plus ู…ูŠุฉ ูˆ ุฎู…ุณูŠู† ู†ูŠูˆุชู† ู…ุชุฑ ุงูˆู„ุด
96
00:09:28,650 --> 00:09:32,210
ุฎู„ูŠู†ุง ู†ุงุฎุฏ ุงู„ุฎูˆุงุตุฉ ุงู„ู…ูŠูƒุงู†ูŠูƒูŠุฉ ู„ู„ู…ุงุฏุฉ ุตุญุŸ ู‡ุงุฏ ุงูˆู„
97
00:09:32,210 --> 00:09:32,810
ูŠู…ูƒู† ู†ุณูˆูŠู‡
98
00:10:11,570 --> 00:10:16,930
ู‡ูˆ call the drone ูˆู…ุนุทูŠู„ ุงู„ ten sires strength
99
00:10:16,930 --> 00:10:23,870
ุงู„ู„ูŠ ู‡ูŠ ุฃุฑุจุนู…ูŠุฉ ูˆ ุฃุฑุจุนูŠู† ูˆ ุงู„ yield ุชู„ุช ู…ูŠุฉ ูˆ
100
00:10:23,870 --> 00:10:34,710
ุณุจุนูŠู† ุงู„ SUT ุจุณุชูˆ
101
00:10:34,710 --> 00:10:35,670
ุฃุฑุจุนู…ูŠุฉ ูˆ ุฃุฑุจุนูŠู†
102
00:10:40,150 --> 00:10:48,090
ู…ูŠุฌุง ุจุงุณูƒุงู„ ูˆุงู„ ุงุณ ูˆุงูŠ ุชู„ุช
103
00:10:48,090 --> 00:10:53,670
ู…ุฆูˆ ุณุจุนูŠู† ู‡ุฐุง
104
00:10:53,670 --> 00:10:58,850
ู…ู† A ุนุดุฑูŠู†
105
00:10:58,850 --> 00:11:08,070
ุทูŠุจ
106
00:11:12,670 --> 00:11:16,830
ุทุจุนุง ู‡ุงุฏ ุงู„ minimum ู†ุญูƒูŠ ู†ูŠุฌูŠ ู„ู„ loading minimum
107
00:11:16,830 --> 00:11:30,530
ู‡ุงุฏ ุงูŠุด max ู‡ุงุฏ ุงู„ minimum ู‡ุงุฏ ุงูŠุด max ู…ุนู†ุงุชู‡ ุงู„
108
00:11:30,530 --> 00:11:37,670
main torque Tm ุงูŠุด ุงู„ุณุงูˆูŠุฉ ุณูุฑ ู…ุธุจูˆุท
109
00:11:41,140 --> 00:11:46,000
ูˆ ุงู„ T alternating ู…ูŠุฉ
110
00:11:46,000 --> 00:11:51,960
ูˆ ุนุดุฑูŠู† ูˆ
111
00:11:51,960 --> 00:11:58,820
ุงู„ mean moment ุจุฑุถู‡ ุณูุฑ ูˆ ุงู„ alternating moment
112
00:11:58,820 --> 00:12:07,500
ู…ูŠุฉ ูˆ ุฎู…ุณูŠู† ู†ูŠูˆุชู† ู…ุชุฑ ู„ุฃู† ู‡ุฐุง ุงู†ุจูˆุจ ู‚ุทุฑ ุงุชู†ูŠู† ูˆ
113
00:12:07,500 --> 00:12:07,940
ุงุฑุจุนูŠู†
114
00:12:45,720 --> 00:12:49,040
ุนู†ุฏูŠู† a broken stress concentration factor KT for
115
00:12:49,040 --> 00:12:52,440
a round bar or tube with a transverse round hole
116
00:12:52,440 --> 00:13:00,040
ูุนู†ุฏูŠู† ุงู†ุจูˆุจ ูู‰ ุซู‚ุจ ุงู„ู„ู‰ ู‡ูˆ ู‚ุทุฑู‡ A ุนู„ูŠู‡ bending
117
00:13:00,040 --> 00:13:09,160
moment M ุงู†ู‡ ู…ู† ุงู„ bending stress ู†ุญูƒู‰
118
00:13:09,160 --> 00:13:20,650
ู‡ุฐุง ุงู„ู„ู‰ ู‡ูˆ A16 ุจุณ ุฃุดูˆู ุงู„ู„ู‰ ุจุนุฏู‡ู‡ุฐุง ุงู„ู€ Torque
119
00:13:20,650 --> 00:13:35,330
ุงู„ู€
120
00:13:35,330 --> 00:13:40,410
Sigma nominal Sigma
121
00:13:40,410 --> 00:13:46,150
A ู…ุชุณุงูˆูŠ M ุนู„ู‰ Z net
122
00:13:54,770 --> 00:13:58,810
ูˆ z net ุจุงู„ุณุงูˆูŠุฉ
123
00:13:58,810 --> 00:14:04,310
by
124
00:14:04,310 --> 00:14:08,490
a ุนู„ู‰
125
00:14:08,490 --> 00:14:16,070
32 D capital ููŠ
126
00:14:16,070 --> 00:14:20,790
D ุฃุต 4 minus D ุฃุต 4
127
00:14:28,100 --> 00:14:42,160
ู„ุฃู† ููŠ ุงู„ table ู…ุงุนุทูŠู†ุง
128
00:14:42,160 --> 00:14:52,200
ุงู„ู„ูŠ ู‡ูˆ ุจุงู„ุฒู…ู† ุฏูŠ ุนู„ู‰ ุฏูŠ ุฏูŠ ุทุจุนุง ุฏูŠ ุฏูŠ ู‡ู†ุง ุณูˆุงุก
129
00:14:52,200 --> 00:14:55,760
ุงุชู†ูŠู† ูˆ ุงุฑุจุนูŠู† ู†ุงู‚ุต ุชู…ุงู†ูŠุฉ ุตุญุŸ
130
00:15:01,010 --> 00:15:05,990
ุงุฑุจุนุฉ ูˆ ุชู„ุงุชูŠู† ู…ู„ูŠ ุตุญ ุฏูŠ
131
00:15:05,990 --> 00:15:11,030
small ุนู„ู‰ ุฏูŠ capital ุจูŠุณุชูˆู‰
132
00:15:11,030 --> 00:15:18,650
ุงุฑุจุนุฉ ูˆ ุชู„ุงุชูŠู† ุนู„ู‰ ุงุชู†ูŠู† ูˆ ุงุฑุจุนูŠู† point
133
00:15:18,650 --> 00:15:22,110
ุชู…ุงู†ูŠุฉ
134
00:15:22,110 --> 00:15:27,530
ุจุงู„ุธุจุท ูˆ ู„ุฒู…ู†ุง a ุนู„ู‰ d
135
00:15:32,210 --> 00:15:39,170
ุฅูŠู‡ ุนู„ู‰ ุฏูŠ capitalุŸ ุงู„ู„ูŠ
136
00:15:39,170 --> 00:15:48,510
ู‡ูŠ ุณุชุฉ ุนู„ู‰ ุงุชู†ูŠู† ูˆุฃุฑุจุนูŠู† ุฃูƒู…ุŸ ุชู„ุงุชุฉ ุฃุฑู‚ุงู… ูŠุนุทูŠู†ูŠ
137
00:15:48,510 --> 00:15:57,090
point point
138
00:15:57,090 --> 00:15:59,310
ูˆุงุญุฏ ุฃุฑุจุนุฉ ุชู„ุงุชุฉ
139
00:16:10,750 --> 00:16:16,770
ุงู†ุง ุนู†ุฏูŠ ุงู„ D ุนู„ู‰ D ุงู„ู„ูŠ ู‡ูŠ bond 8 ู…ู…ูƒู†
140
00:16:16,770 --> 00:16:27,090
ุงู†ุฏูŠ D ุนู„ู‰ D bond 9 ูˆ bond 6 ุงูˆ ุงู„ A ุนู„ู‰ D ููŠ ุนู†ุฏูŠ
141
00:16:27,090 --> 00:16:33,770
bond 1 ูˆ bond 1 2 5 ูŠุนู†ูŠ ุนู†ุฏูŠ A ุนู„ู‰ D
142
00:16:44,150 --> 00:16:51,790
ุนู†ุฏูŠ point ูˆุงุญุฏ ูˆ point
143
00:16:51,790 --> 00:17:02,850
ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉ ุนู†ุฏูŠู†
144
00:17:02,850 --> 00:17:07,610
A ูˆ
145
00:17:07,610 --> 00:17:08,090
KT
146
00:17:14,370 --> 00:17:22,450
ุนู†ุฏูŠ A ูˆ KT ุนู†ุฏูŠ
147
00:17:22,450 --> 00:17:27,430
ููŠ ุญุงู„ุฉ point nine point
148
00:17:27,430 --> 00:17:31,990
ุณุชุฉ ุนู†ุฏูŠ
149
00:17:31,990 --> 00:17:35,230
point ุชู…ุงู†ูŠุฉ ุณุชุฉ point ุชู…ุงู†ูŠุฉ ุงุชู†ูŠู† point ุชู…ุงู†ูŠุฉ
150
00:17:35,230 --> 00:17:42,510
ุณุชุฉ point ุชู…ุงู†ูŠุฉ ุงุชู†ูŠู† point ุงุฑุจุนุฉ
151
00:17:42,510 --> 00:17:42,950
ุชุณุนุฉ
152
00:17:45,540 --> 00:17:53,220
ูˆ ุงุชู†ูŠู† point ุงุฑุจุน ูˆุงุญุฏ ุนู†ุฏ ุงู„ point ุณุชุฉ point
153
00:17:53,220 --> 00:18:01,160
ุชู…ุงู†ูŠุฉ ุฎู…ุณุฉ point ุชู…ุงู†ูŠุฉ ุงุชู†ูŠู† ุชู…ุงู†ูŠุฉ
154
00:18:01,160 --> 00:18:10,740
ุงุชู†ูŠู† ูˆ ุงุชู†ูŠู† ุณุชุฉ ุชู„ุงุชูŠู† ูˆ ุงุชู†ูŠู† ุงุชู†ูŠู† ูˆ ุชู„ุงุชูŠู†
155
00:18:10,740 --> 00:18:14,080
ุจุฏูŠ
156
00:18:14,080 --> 00:18:14,840
ุงุญุณุจ ูŠุง ุงู†ุช
157
00:18:18,410 --> 00:18:23,150
point ูˆุงุญุฏ ุงุฑุจุนุฉ
158
00:18:23,150 --> 00:18:27,510
ุชู„ุงุชุฉ ู†ุนู…
159
00:18:27,510 --> 00:18:31,070
point
160
00:18:31,070 --> 00:18:37,110
ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉ ูˆุงุญุฏ ุฎู…ุณุฉ ู‡ุฐุง ูƒู… ุชุญุณุจูŠู†ู‡ุง point
161
00:18:37,110 --> 00:18:40,850
ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉ ูˆุงุญุฏ ุฎู…ุณุฉ
162
00:18:48,160 --> 00:18:56,880
ู‡ุชูƒูˆู† ุงู„ุชุงู†ูŠุฉ ุงู„ู„ูŠ ู‡ูŠ point ูˆุงุญุฏ ุฎู…ุณุฉ
163
00:18:56,880 --> 00:19:02,660
point
164
00:19:02,660 --> 00:19:09,240
ุณุจุนุฉ ุชุณุนุฉ point ุณุจุนุฉ ุชุณุนุฉ ุงุชู†ูŠู†
165
00:19:09,240 --> 00:19:15,240
point ุชู„ุช ุชุณุนุฉ point ุณูุฑ point ุณุจุนุฉ ุชุณุนุฉ
166
00:19:29,790 --> 00:19:33,250
ุทูŠุจ ุนู†ุฏู‡ูŠู† point ูˆุงุญุฏ ุงุฑุจุนุฉ ุชู„ุงุชุฉ
167
00:19:44,790 --> 00:19:53,470
ู‡ุชูƒูˆู† ุงู„ a ู‡ุชูƒูˆู† ู‡ุฐู‡ ุงูˆู„ ูˆุงุญุฏุฉ a ูˆุงุญุฏ ุจุงู„ุณูˆุงุก
168
00:19:53,470 --> 00:19:57,710
point ุชู…ุงู†ูŠุฉ ุงุชู†ูŠู† ุฒุงุฆุฏ
169
00:19:57,710 --> 00:20:06,230
point ูˆุงุญุฏ ุงุฑุจุนุฉ ุชู„ุงุชุฉ ู†ุงู‚ุต point ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉ
170
00:20:06,230 --> 00:20:11,370
ููŠ point ุณุจุนุฉ ุชุณุนุฉ
171
00:20:14,360 --> 00:20:26,200
ู†ุงู‚ุต point ุชู…ุงู†ูŠุฉ ุงุชู†ูŠู† ุงุนู„ู‰ point ูˆุงุญุฏ ุฎู…ุณุฉ ู†ุงู‚ุต
172
00:20:26,200 --> 00:20:32,800
point ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉ
173
00:20:32,800 --> 00:20:37,320
ู†ุนู…
174
00:20:40,970 --> 00:20:48,750
ุชู†ุงู…ุฒ ูŠุนู†ูŠ ุงู„ A ูˆ ุงู„ K ุชูŠ ุงูƒู… ุงู„ A ุจูˆู†ุช
175
00:20:48,750 --> 00:20:59,810
ุณุจุนุฉ ูŠุนู†ูŠ
176
00:20:59,810 --> 00:21:05,210
ุจูˆู†ุช ุชู…ุงู†ูŠุฉ ุทูŠุจ
177
00:21:05,210 --> 00:21:09,290
ู‡ุฐู‡
178
00:21:09,290 --> 00:21:17,540
ุงู„ A ูˆุงุญุฏูˆ ุงู„ a ุงุชู†ูŠู† ู‡ุชูƒูˆู† ู†ูุณ ุงู„ุฃุดู‡ุฑ point 8
179
00:21:17,540 --> 00:21:21,660
ุงู„ูƒุงุชูŠ
180
00:21:21,660 --> 00:21:22,160
ูˆุงุญุฏ
181
00:21:27,630 --> 00:21:36,030
ู‡ุชูƒูˆู† ุชุณุงูˆู‰ ุงุชู†ูŠู† point ุงุฑุจุน ูˆุงุญุฏ ุฒุงุฆุฏ point ูˆุงุญุฏ
182
00:21:36,030 --> 00:21:41,690
ุงุฑุจุน ุชู„ุงุชุฉ ู†ุงู‚ุต point ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉ ุนู„ู‰ point
183
00:21:41,690 --> 00:21:48,730
ูˆุงุญุฏ ุฎู…ุณุฉ ู†ุงู‚ุต point ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉ ููŠ ุงุชู†ูŠู†
184
00:21:48,730 --> 00:21:54,050
point ุชู„ุงุชุฉ ุชุณุนุฉ ู†ุงู‚ุต ุงุชู†ูŠู† point ุงุฑุจุน ูˆุงุญุฏ
185
00:22:14,500 --> 00:22:18,440
ุทูŠุจ ูƒุช ุงุชู†ูŠู† ู‡ุชูƒูˆู† ู†ูุณ ุงู„ู„ูŠ ู…ุด ุจุณ ู‡ูŠุชุบูŠุฑ ุงู„ุฑู‚ู… ู‡ุฐุง
186
00:22:18,440 --> 00:22:25,800
ุงู„ุฑู‚ู… ู‡ุฐุง ู‡ูˆ ู‡ุฐุง ุงุฏูˆุงุฑ ุงุชู†ูŠู†
187
00:22:25,800 --> 00:22:32,170
pointุฅุชู†ูŠู† ุชุณุนุฉ ูŠุนู†ูŠ
188
00:22:32,170 --> 00:22:38,210
ุงุชู†ูŠู† ุจู‚ูˆู† ุชู„ุงุชุฉ ูˆุฃู†ุง
189
00:22:38,210 --> 00:22:48,950
ุชุญุณูŠู† ุนู†ุฏ ุงู„ุฌุฏูˆู„ ุงู„ุฌุฏูŠุฏ ุชุญุณูŠู†
190
00:22:48,950 --> 00:22:49,750
ุนู†ุฏ ุงู„ุฌุฏูˆู„ ุงู„ุฌุฏูŠุฏ
191
00:22:54,050 --> 00:22:58,210
ุงู„ู„ูŠ ุนู„ู‰ D ุซุงุจุช ุญุงู„ูŠุง ู‡ุชูƒูˆู† ุนู†ุฏูŠ ุงู„ D ุนู„ู‰ D
192
00:22:58,210 --> 00:23:08,350
capital ุตุญ ุงู„ D ุนู„ู‰ D capital ุนู†ุฏูŠ
193
00:23:08,350 --> 00:23:12,670
point 9 point
194
00:23:12,670 --> 00:23:20,950
6 ูˆุนู†ุฏูŠ
195
00:23:25,790 --> 00:23:32,530
ุงู„ A ูˆุงู„
196
00:23:32,530 --> 00:23:43,630
KT ุงู„ A point ุชู…ุงู†ูŠุฉ point
197
00:23:43,630 --> 00:23:50,670
ุชู…ุงู†ูŠุฉ ูˆุงู„ KT ุงุชู†ูŠู†
198
00:23:50,670 --> 00:23:52,110
point ุงุฑุจุนุฉ
199
00:23:55,590 --> 00:24:05,910
ูˆ ุงุชู†ูŠู† point ุชู„ุงุชุฉ ู…ุนู†ุงุชู‡ ู‡ุฐู‡ ู‡ุชูƒูˆู† ุนู†ุฏ
200
00:24:05,910 --> 00:24:10,350
point ุชู…ุงู†ูŠุฉ ู‡ุฐู‡
201
00:24:10,350 --> 00:24:19,890
ู‡ุชูƒูˆู† point ุชู…ุงู†ูŠุฉ ู‡ู†ุญุณุจ ู‡ุชูƒูˆู† ุนู†ุฏ ุงู„ูƒุงุชูŠ ู†ู‡ุงุฆูŠุฉ
202
00:24:19,890 --> 00:24:23,670
ู‡ุชูƒูˆู†
203
00:24:23,670 --> 00:24:34,170
ุงุชู†ูŠู† point ุงุฑุจุนุฉุฒุงุฆุฏ point .. ู†ุงู‚ุต point ูˆุงุญุฏ ุนู„ู‰
204
00:24:34,170 --> 00:24:44,370
minus point ุชู„ุงุชุฉ ููŠ ุงุชู†ูŠู† point ููŠ minus point
205
00:24:44,370 --> 00:24:48,830
ูˆุงุญุฏ ู‡ุง ูƒู… ุชุทู„ุน ุงุชู†ูŠู† point
206
00:24:53,090 --> 00:25:01,490
ุฃูŠูˆุฉ ุชู„ุงุชุฉ ุณุชุฉ ุณุชุฉ ุณุชุฉ ู‡ุฐูŠ
207
00:25:01,490 --> 00:25:14,710
ุฅูŠุด ุงู„ KT ู…ุงู†ุง ุฃุชุญุณุจ ุงู„ุฒุฏู†ุฉ ู‡ุชูƒูˆู†
208
00:25:14,710 --> 00:25:21,570
by ููŠ ุงู„ุชู…ุงู†ูŠุฉ ูˆ ุนุดุฑุฉ ุนู„ู‰ ุงุชู†ูŠู† ูˆ ุชู„ุงุชูŠู†
209
00:25:24,320 --> 00:25:35,360
ููŠ ููŠ ุงุชู†ูŠู† ูˆ ุงุฑุจุนูŠู† ููŠ ุงุชู†ูŠู† ูˆ ุงุฑุจุนูŠู† ุจุต ุงุฑุจุนุฉ
210
00:25:35,360 --> 00:25:42,720
minus ุงุฑุจุนุฉ ุชู„ุงุชูŠู† ุจุต ุงุฑุจุนุฉ
211
00:25:51,840 --> 00:26:04,820
ุชู„ุช ุชู„ุงู ุชู„ุช ู…ูŠุฉ ูˆ ุนุดุฑูŠู† ู…ู„ูŠู…ุชุฑ ุชูƒูŠุจ ุตุญุŸ ู…ุธุจูˆุทุŸ
212
00:26:04,820 --> 00:26:12,120
ูŠุนู†ูŠ ุงู„ sigma a ุงู„ sigma nominal ู‡ุชูƒูˆู†
213
00:26:12,120 --> 00:26:15,500
ู‡ูˆ
214
00:26:15,500 --> 00:26:16,720
ุงู„ sigma a nominal
215
00:26:30,940 --> 00:26:35,360
ู‡ุชูƒูˆู† ุชุณุงูˆูŠ ูŠุนู†ูŠ
216
00:26:35,360 --> 00:26:41,140
ู…ู…ูƒู† ุงุญูƒูŠ sigma a ู‡ุชูƒูˆู†
217
00:26:41,140 --> 00:26:45,120
KF
218
00:26:45,120 --> 00:26:58,120
ููŠ M ุนู„ู‰ Z net ุตุญุŸ ุจุฏูŠ ุงุญุณุจ ุงู„ KF KF
219
00:26:59,950 --> 00:27:09,910
ุจุณ ู‡ูˆ ูˆุงุญุฏ ุฒูŠ ูƒูŠูˆ ููŠ ูƒุช ู…ุงูŠู†ูˆุณ ูˆุงุญุฏ ุงู„
220
00:27:09,910 --> 00:27:16,030
ูƒูŠูˆ ุงู„ู†ูˆุชุด
221
00:27:16,030 --> 00:27:19,010
ุนู†ุฏู‡ุง ูŠุนู†ูŠ ุณุชุฉ ู…ู„ุง ูŠุนู†ูŠ ุชู„ุชุฉ ู…ู„ุง ู‡ุชูƒูˆู† ุงู„ุฑุฏ ุงู„ุณุงุนุฉ
222
00:27:40,650 --> 00:27:46,290
ุนู†ุฏูŠ ู†ูˆุชุด ุชู„ุงุชุฉ ู…ู„ูŠ ูˆ ุงู„ SUT ุฃูƒู…ู„ ุงุฑุจุนู…ุงุฆุฉ ูˆ ุงุฑุจุน
223
00:27:46,290 --> 00:27:51,950
ูŠุนู†ูŠ ุชู‚ุฑูŠุจุง ู‡ุฐู‡ ุตุญ point ุฃุฑุจุนุฉ ูŠุนู†ูŠ ุจู†ุญูƒูŠ ุงุญู†ุง ..
224
00:27:51,950 --> 00:27:59,150
ุงุญู†ุง ุนู†ุฏู†ุง ู‡ู†ุง point ุณุจุนุฉ ูŠุนู†ูŠ
225
00:27:59,150 --> 00:28:04,110
point ุณุจุนุฉ ุชู…ุงู†ูŠุฉ ุชู‚ุฑูŠุจุง ุงู„ Q ุตุญ ุงู„ Q
226
00:28:09,760 --> 00:28:16,100
ุตุงุฑ point ุณุจุนุฉ ุชู…ุงู†ูŠุฉ ูŠุนู†ูŠ ุงู„ูƒุงู ู‡ูŠูƒูˆู† ุงู„ุณุงูˆูŠ ูˆุงุญุฏ
227
00:28:16,100 --> 00:28:21,080
ุฒุงุฆุฏ point ุณุจุนุฉ ุชู…ุงู†ูŠุฉ ุงู„ KT ุฃูƒุจุฑ ุญุณุจ ุงู†ู‡ุง ุงุชู†ูŠู†
228
00:28:21,080 --> 00:28:29,760
ุชู„ุงุชุฉ ูƒูŠู ุชู„ุงุชุฉ ุงุชู†ูŠู† ู‡ุฐุง ุตุญ ุงุชู†ูŠู† point ุชู„ุงุชุฉ
229
00:28:29,760 --> 00:28:32,420
ุณุจุนุฉ ู†ุงู‚ุต ูˆุงุญุฏ
230
00:28:39,120 --> 00:28:45,960
ู‡ูƒ ุญุณุจู†ุง ุงู„ kf ู…ุนู†ุงุชู‡ ุงู„ sigma a ู‡ุชูƒูˆู†
231
00:28:45,960 --> 00:28:59,180
ุงู„ู„ูŠ ู‡ูˆ ุงูƒู… ุงู„ kf 2 point 07 ู‡ูƒูˆู† 2 point 07 ุงู„ M
232
00:28:59,180 --> 00:29:02,260
alternating ุงู„ู„ูŠ ู‡ูŠ 150
233
00:29:05,800 --> 00:29:14,600
ุนู„ู‰ z net ุงู„ู„ูŠ ู‡ูŠ ุชู„ุช ุชู„ุงู ูˆ ุชู„ุช ู…ูŠุฉ ูˆ ุนุดุฑูŠู† ููŠ
234
00:29:14,600 --> 00:29:23,220
ุนุดุฑุฉ ูˆุงู„ุณุงู„ุจ ุชู„ุชุฉ
235
00:29:23,220 --> 00:29:30,940
ุนุดุฑุฉ
236
00:29:30,940 --> 00:29:35,000
ูˆุงู„ุณุงู„ุจ ุชุณุนุฉ ููŠ
237
00:29:36,730 --> 00:29:44,330
ููŠ ุนุดุฑ ุงูˆ ุซู„ุงุซุฉ ูƒู…
238
00:29:44,330 --> 00:29:56,270
ุจูŠุทู„ุน ุชู„ุงุช ูˆ ุชุณุนูŠู† ูˆ ู†ุต ู…ูŠุฌุง ุจุงุณูƒุงู„ ู‡ุฐุง ุงู„ stress
239
00:29:56,270 --> 00:29:59,890
component due to bending ู„ุฃู† due to
240
00:30:13,940 --> 00:30:19,920
due to torsion
241
00:30:19,920 --> 00:30:36,700
ู‡ู†ุญุณุจ
242
00:30:36,700 --> 00:30:51,640
ุงู„ู„ูŠ ู‡ูˆุงู„ุชุงุจ ูŠุณุชูˆู‰ ุช ุฏูŠ ุนู„ู‰ ุงุชู†ูŠู† ุฌูŠ ู†ุช ุจุญูŠุซ
243
00:30:51,640 --> 00:30:56,100
ู„ุฒู…ู†ุง ุงู„ a ุทุจุนุง ูˆ ุงู„ kt ุงู„ a ูˆ ุงู„ kt ุงู„ kt yes
244
00:30:56,100 --> 00:31:02,400
ุงุญู†ุง
245
00:31:02,400 --> 00:31:07,740
already ุงู„ point ุชู…ุงู†ูŠุฉ ู…ูˆุฌูˆุฏุฉ ุนู†ุฏู†ุง ุตุญ ูู‡ุฐุง
246
00:31:07,740 --> 00:31:19,690
ู‡ุชุชุตุฑู ู„ู†ุง ุงู„ุฌู‡ุฏู‡ู†ูƒูˆู† ุจูŠู† ุงู„ 125 ูˆ ุงู„ 150 ุงู„
247
00:31:19,690 --> 00:31:30,470
a ู‡ูŠ ุงู„ point ุชู…ุงู†ูŠุฉ ู‡ุชูƒูˆู† ุนูŠุด point ุชุณุนุฉ ุตุญ ุงู„ a
248
00:31:30,470 --> 00:31:37,150
point
249
00:31:37,150 --> 00:31:37,650
ุชุณุนุฉ
250
00:31:41,220 --> 00:31:49,360
ูˆุงู„ู€ KTS ู‡ู†ุทู„ุน ู‡ู†ุง ู‡ุชูƒูˆู†
251
00:31:49,360 --> 00:31:54,720
ุงู„ KTS ุณูˆุง ูˆุงุญุฏ ุณูˆุง
252
00:31:54,720 --> 00:32:05,300
ูˆุงุญุฏ ุฒุงุฆุฏ ุงู„ู„ูŠ ู‡ูŠ point ูˆุงุญุฏ ุงุฑุจุน ุชู„ุงุชุฉ ู†ุงู‚ุต point
253
00:32:05,300 --> 00:32:10,900
ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉุนู„ู‰ point ูˆุงุญุฏ ุฎู…ุณุฉ ู†ุงู‚ุต point ูˆุงุญุฏ
254
00:32:10,900 --> 00:32:20,220
ุงุชู†ูŠู† ุฎู…ุณุฉ ู…ุด ูˆุงุญุฏ ูˆุงุญุฏ point ุณุจุนุฉ ุงุฑุจุนุฉ ู‡ุฐู‡ ูˆุงุญุฏ
255
00:32:20,220 --> 00:32:28,800
point ุณุจุนุฉ ุงุฑุจุนุฉ ููŠ ูˆุงุญุฏ point ุณุจุนุฉ ุฎู…ุณุฉ
256
00:32:36,840 --> 00:32:43,460
ู‡ุชูƒูˆู† ูˆุงุญุฏ point ุณุจุนุฉ ู…ู†
257
00:32:43,460 --> 00:32:52,460
ุงู„ุชุจุฑูŠุฑ ุฎู…ุณ ูˆุงู„
258
00:32:52,460 --> 00:33:01,540
KF ุจุชุงุนุฉ KFS KF ุญุตู† ูˆุงุญุฏ ุฒุงุฏ QS ููŠ KTS minus ูˆุงุญุฏ
259
00:33:01,540 --> 00:33:17,820
ู‡ุชูƒูˆู† ูˆุงุญุฏุฒุงุฆุฏ ูŠุนู†ูŠ
260
00:33:17,820 --> 00:33:26,840
ุชู„ุงุชุฉ ู…ู„ูŠ ูŠุนู†ูŠ
261
00:33:26,840 --> 00:33:34,100
ุชู‚ุฑูŠุจุง ุนู†ุฏ ุจูˆู† ุณุชุฉ ุฎู…ุณุฉ ู„ูƒูŠูˆ ุนู†ุฏ
262
00:33:34,100 --> 00:33:34,400
ู‡ู†ุง
263
00:33:37,240 --> 00:33:43,260
ู„ุฃ point ุชู…ุงู†ูŠุฉ ู‡ุงู† point ุชุณุนุฉ point ุชู…ุงู†ูŠุฉ ุงุชู†ูŠู†
264
00:33:43,260 --> 00:33:50,460
point ุชู…ุงู†ูŠุฉ ุงุชู†ูŠู† ููŠ
265
00:33:50,460 --> 00:33:57,200
ูˆุงุญุฏ point ุณุจุนุฉ ุฎู…ุณุฉ minus ูˆุงุญุฏ
266
00:33:57,200 --> 00:34:01,880
ูˆุงุญุฏ
267
00:34:01,880 --> 00:34:05,820
point ู‡ุฐุง
268
00:34:05,820 --> 00:34:06,500
ูƒุฏู‡ ูู‚ุท
269
00:34:20,890 --> 00:34:27,390
ูˆุงู„ ุชุงูˆ alternating
270
00:34:27,390 --> 00:34:36,250
ู‡ูŠูƒูˆู† ุณูˆุงุก ูƒูุณ ููŠ ุช ุฏูŠ
271
00:34:36,250 --> 00:34:45,730
ุนู„ู‰ ุงุชู†ูŠู† ุฌู†ุช ูˆุฌู†ุช
272
00:34:50,480 --> 00:35:01,360
ุจุงู„ุณุงูˆูŠุฉ ุจุงูŠ ููŠ ุงูŠู‡ ููŠ ุฏูŠ ุฃุณ ุฃุฑุจุนุฉ minus ุฏูŠ ุฃุณ
273
00:35:01,360 --> 00:35:08,900
ุฃุฑุจุนุฉ ุนู„ู‰ ุงุชู†ูŠู† ูˆ ุชู„ุงุชูŠู† ูŠูƒูˆู†
274
00:35:08,900 --> 00:35:11,820
ุจุงูŠ ููŠ bone ุชุณุนุฉ
275
00:35:14,570 --> 00:35:20,230
ูู‰ ุงุชู†ูŠู† ูˆ ุงุฑุจุนูŠู† ุงู‚ุต ุงุฑุจุนุฉ ู†ุงู‚ุต ุงุฑุจุนุฉ ูˆุชู„ุงุชูŠู† ุงู‚ุต
276
00:35:20,230 --> 00:35:34,490
ุงุฑุจุนุฉ ุนู„ู‰ ุงุชู†ูŠู† ูˆ ุชู„ุงุชูŠู† ุทูŠุจ
277
00:35:34,490 --> 00:35:43,070
ู…ุนู†ุงุชู‡ ุงู„ TaoAlternating ู‡ุชูƒูˆู† ุงู„ุณุงูˆูŠุฉ KFS ุงู„ู„ูŠ
278
00:35:43,070 --> 00:35:50,170
ูˆุงุญุฏ point ุณุชุฉ ุงุชู†ูŠู† ููŠ ุงู„ tau alternating ุงู„ู„ูŠ ู‡ูˆ
279
00:35:50,170 --> 00:36:01,550
ู…ุงุฆุฉ ูˆ ุนุดุฑูŠู† ููŠ ุงุชู†ูŠู† ูˆ ุงุฑุจุนูŠู† ุนู„ู‰ ุงุด ุฌุงู†ุช ุทู„ุนุช
280
00:36:01,550 --> 00:36:05,290
ู…ุนู†ุงู‡ุง ู…ูŠุฉ ูˆ ุณุชุฉ ูˆ ุฎู…ุณูŠู†
281
00:36:13,140 --> 00:36:14,240
ู…ู† ุณุชุฉ ูˆ ุฎู…ุณูŠู† ุฃู„ู
282
00:36:43,880 --> 00:36:50,240
ุทูŠุจ millimeters ุฃุฑุจุนุฉ ุตุญุŸ
283
00:36:50,240 --> 00:36:56,420
ุนู„ู‰
284
00:36:56,420 --> 00:37:08,500
ุงุชู†ูŠู† ุฃูƒู…
285
00:37:08,500 --> 00:37:09,280
ุชุทู„ุนุŸ
286
00:37:36,530 --> 00:37:41,910
ู…ุนู†ุงุชู‡ ุจุนุฏูƒ ู‡ุญุณุจ ุงู†ุง
287
00:37:41,910 --> 00:37:45,630
already combined ุงู„ู„ูŠ ู‡ูˆ ููŠู‡ุง ุงู„ stress
288
00:37:45,630 --> 00:37:52,770
concentration ูู‡ุฑุญุณุจ ุงู„ู„ูŠ ู‡ูˆ sigma A primary if
289
00:37:52,770 --> 00:37:54,730
one mice is alternating ู‡ุชูƒูˆู† ุชุณุงูˆูŠ
290
00:37:57,670 --> 00:38:08,030
ุงู„ุณูŠุฌู…ุง a square ุฒุงุฆุฏ ุชู„ุงุชุฉ ุชุงูˆ a square ุงู„ูƒู„ ุฃุต
291
00:38:08,030 --> 00:38:14,910
ู†ุต ูŠุนู†ูŠ ู‡ุชูƒูˆู† ุชุณุงูˆูŠ ุงู„ุณูŠุฌู…ุง a ุชุฑุจูŠุน ุงู„ุณูŠุฌู…ุง ุงู„ู„ูŠ
292
00:38:14,910 --> 00:38:22,530
ู‡ูŠ ุชู„ุงุชุฉ ุณูŠู† ูˆ ู†ุต ุชุฑุจูŠุน
293
00:38:22,530 --> 00:38:33,890
ุฒุงุฆุฏ ุชู„ุงุชุฉููŠ ุณุชุฉ ูˆุนุดุฑูŠู† point ุงุชู†ูŠู† ุชุฑุจูŠุน ู„ูƒู„ ุฃุต
294
00:38:33,890 --> 00:38:38,390
ู†ุต ู‡ุง
295
00:38:38,390 --> 00:38:39,090
ูƒู… ุชุณุชูˆู‰
296
00:38:57,400 --> 00:39:05,640
ุฃูƒู… 104 ู…ูŠุฌุง
297
00:39:05,640 --> 00:39:09,400
ุจุงุณูƒุงู„ ุทุจ
298
00:39:09,400 --> 00:39:13,600
ู…ุงุฒุงู„ ุนู†ุฏูŠ ุจุณ alternative stress component ู‡ูƒูˆู† ุงู„
299
00:39:13,600 --> 00:39:18,400
fatigue factor of safety ุงู„
300
00:39:18,400 --> 00:39:24,400
NF ู‡ูƒูˆู† SE ุนู„ู‰
301
00:39:28,370 --> 00:39:32,950
ุงู„ู„ูŠ ู‡ูŠ SE
302
00:39:32,950 --> 00:39:37,650
ุนู„ู‰ Sigma A ู…ุนู†ุงุชู‡ ุจู„ุฒู…ู†ูŠ ุงู„ู€ SE ุงู„ู€ SE ููŠ ุฑู‚ู… 12
303
00:39:37,650 --> 00:39:47,530
ุณุงูˆูŠุฉ ู†ุต ุงู„ SUT ูŠุนู†ูŠ ู‡ูƒูˆู† ู†ุต ุงู„ SUT ุงู„ู„ูŠ ู‡ูŠ 220
304
00:39:47,530 --> 00:39:52,850
ู…ูŠุฌุง
305
00:39:52,850 --> 00:40:06,570
ุจุณูƒุงู„ ุงู„ SEุณูˆู‰ KA KB KC KD KE SE'
306
00:40:42,500 --> 00:40:49,900
ุงู„ .. ู‡ูˆ ุญูƒูŠ ุฃู†ู‡ ูŠุนุทูŠู†ุง ู…ุนู„ูˆู…ุฉ ุจุฏู‡
307
00:40:49,900 --> 00:40:55,280
ุงุนุชุจุฑู‡ู… machined ูˆ it is rotating ู…ุนู†ุงู‡ ุชุญุฑุฌูˆุง ุนู„ู‰
308
00:40:55,280 --> 00:41:08,920
ุงู„ factors ุงู„ K A ูˆ ุงู„ K B ุงู„
309
00:41:08,920 --> 00:41:10,000
K A ู‡ุชูƒูˆู† ุงู„ุณุงูˆูŠุฉ
310
00:41:16,410 --> 00:41:26,710
A S U T ุจุต B ู‡ุชูƒูˆู† ุชุณุชุงูˆูŠ ู‡ุชูƒูˆู† ุนู†ุฏู‡ ุชู„ุงุชุฉ point O
311
00:41:26,710 --> 00:41:33,950
four ููŠ ุฃุฑุจุนู…ูŠุฉ ูˆ ุฃุฑุจุนูŠู† ุงู„ B ุงู„ู„ูŠ ู‡ูŠ ู…ุงุฆุชูŠู† ูˆ
312
00:41:33,950 --> 00:41:38,050
ุณุจุนุชุงุด ู‡ุฐุง
313
00:41:38,050 --> 00:41:42,450
ุงู„ูƒุงุฆูŠ ู‡ูƒู…ุŸ
314
00:41:44,890 --> 00:42:02,430
point nine ุงุฑุจุนุฉ ุงู„ KB ู‡ุชูƒูˆู†
315
00:42:02,430 --> 00:42:06,450
ุชุณุงูˆูŠ ูˆุงุญุฏ
316
00:42:06,450 --> 00:42:08,850
point ุงุชู†ูŠู† ุงุฑุจุนุฉ
317
00:42:11,760 --> 00:42:17,260
D ุจุตู†ุงุนุฉ ู‚ุณู…ูŠุฉ ูˆ ุณุจุนุฉ ูŠุนู†ูŠ ู‡ุชูƒูˆู† ูˆุงุญุฏ point ุงุชู†ูŠู†
318
00:42:17,260 --> 00:42:31,840
ุงุฑุจุนุฉ ููŠ ุงุชู†ูŠู† ูˆ ุงุฑุจุนูŠู† ูˆ
319
00:42:31,840 --> 00:42:38,420
ุงู„ KC ุจูŠุณุงูˆูŠ ุงู„ KD ุจูŠุณุงูˆูŠ ุงู„ KE ุจูŠุณุงูˆูŠ ูˆุงุญุฏ ู…ุนู†ุงุชู‡
320
00:42:38,420 --> 00:42:40,200
ุงู„ SE ู‡ุชูƒูˆู† ุชุณุงูˆูŠ
321
00:42:44,830 --> 00:42:50,930
ุจูˆู† ุชู…ุงู†ูŠุฉ ูƒุจูŠุฑ
322
00:42:50,930 --> 00:42:54,730
ูƒุจูŠุฑ
323
00:42:54,730 --> 00:43:03,270
ุจูˆู† ุชู…ุงู†ูŠุฉ ูˆุงุญุฏ ููŠ ุจูˆู† ุชู…ุงู†ูŠุฉ ุชู„ุงุชุฉ ููŠ ู…ุชูŠู† ูˆุนุดุฑูŠู†
324
00:43:03,270 --> 00:43:12,350
ูŠุนู†ูŠ
325
00:43:12,350 --> 00:43:21,240
ุงู„ fatigue factor of safetyู†ุญูƒูŠ ุนู„ู‰ Godman ุตุญุŸ ู‡ุง
326
00:43:21,240 --> 00:43:32,160
Godman ุฌุง ุจูŠู† S U T ูˆ S A ูˆ ุงู„ Sigma alternating
327
00:43:32,160 --> 00:43:37,120
ุงู„ู„ูŠ ู‡ู‰ Von Mises ุงู„ู„ูŠ ู‡ู‰
328
00:43:37,120 --> 00:43:43,480
ุจูŠู‡ ุฃุฑุจุนุฉ ุฌุงูŠ ู‡ู†ุง ู‡ู‰ ุงู„ status stress ุจุชุงุนุชู†ุง ูˆ ุงู„
329
00:43:43,480 --> 00:43:44,860
yielding ุฌุง ุจูŠู† S Y
330
00:43:47,720 --> 00:43:52,140
ูˆ S Y ุจูŠุนู†ู‰
331
00:43:52,140 --> 00:44:04,500
ุงู† ุงู„ N F ู‡ูŠูƒูˆู† ุงู„ุณุงูˆู‰ 148 ุนู„ู‰ 104 ูˆ
332
00:44:04,500 --> 00:44:08,460
ุงู„ N Y ู‡ูŠูƒูˆู† ุงู„ S Y
333
00:44:23,060 --> 00:44:29,260
ุงู„ู€ sigma prime max ูˆ
334
00:44:29,260 --> 00:44:34,680
ุงู„ sigma prime max ุณูˆุงุก sigma prime alternating
335
00:44:34,680 --> 00:44:40,540
ุชู‚ุฑูŠุจุง ุฒูŠ ุงู„ sigma prime main ูŠุนู†ูŠ ู‡ุชูƒูˆู† ููŠ ุงู„ุญุงู„
336
00:44:40,540 --> 00:44:44,440
ู‡ุฐุง ุงู„ sigma prime alternating ุงู„ู„ูŠ ู‡ูŠ ู‡ุชูƒูˆู† ู…ูŠุฉ
337
00:44:44,440 --> 00:44:50,100
ูˆุฃุฑุจุนุฉ ูŠุนู†ูŠ
338
00:44:50,100 --> 00:44:52,320
ู‡ุชูƒูˆู† max
339
00:44:54,850 --> 00:45:08,790
ู‡ุชูƒูˆู† ุชู„ุงุช ู…ูŠุฉ ูˆ ุณุจุนูŠู† ุนู„ู‰ ู…ูŠุฉ ูˆ ุฃุฑุจุนุฉ ูˆุงุญุฏ
340
00:45:08,790 --> 00:45:19,910
point ูˆ ุงู„ and why ุชู„ุงุชุฉ point ุฎู…ุณุฉ ุณุชุฉ ู‡ุฐู‡ ุงู„ุญุงู„ุฉ
341
00:45:19,910 --> 00:45:20,330
ุงู„ุฃูˆู„ู‰
342
00:45:39,690 --> 00:45:48,050
ุงู„ุญุงู„ุฉ ุงู„ุชุงู†ูŠุฉ ุงู„ู€ shaft is non-rotating ุจุฏูˆุฑุด and
343
00:45:48,050 --> 00:45:54,390
is subjected to .. ุงู„ุญุงู„ุฉ ุงู„ุชุงู†ูŠุฉ .. ู‡ุฐู‡ ุงู„ุญู„ูˆุฉ ..
344
00:45:54,390 --> 00:45:57,550
ุงู„ุญุงู„ุฉ ุงู„ุชุงู†ูŠุฉ non-rotating
345
00:46:09,690 --> 00:46:16,290
ูˆ ุงู„ tau ูŠุนู†ูŠ ุงู„
346
00:46:16,290 --> 00:46:23,810
torque ุจุชุบูŠุฑ ู…ู† ุนุดุฑูŠู† ู„ู…ูŠุฉ ูˆ ุณุชูŠู† ู…ู† ุนุดุฑูŠู† ู„ู…ูŠุฉ ูˆ
347
00:46:23,810 --> 00:46:31,150
ุณุชูŠู† ูˆ
348
00:46:31,150 --> 00:46:37,050
ุงู„ bending moment is steady ูŠุนู†ูŠ ู‡ุชูƒูˆู†
349
00:46:42,020 --> 00:46:47,560
ู…ูŠุฉ ูˆ ุฎู…ุณูŠู† ุงู„
350
00:46:47,560 --> 00:46:57,480
ู†ูŠูˆุชู† ู…ุชุฑ ููŠ ุงู„ุญุงู„ุฉ ู‡ุฐู‡ ู‡ูŠูƒูˆู† ุนู†ุฏู‡
351
00:46:57,480 --> 00:47:07,400
ุงู„ ุงู„ TM ุจุงุณู… ุนุดุฑูŠู† ุฒุงุฏ ู…ูŠุฉ ูˆ ุณุชูŠู† ู…ูŠุฉ ูˆ ุชู…ุงู†ูŠุฉ
352
00:47:07,400 --> 00:47:15,510
ุงุชู†ูŠู† ุชุณุนูŠู† ุงู„ ู†ูŠูˆุชู† ู…ุชุฑูˆุงู„ ุชุงูˆ ุงู„ T alternating
353
00:47:15,510 --> 00:47:19,930
ุณูˆุงุก ู…ูŠุฉ ูˆ ุณุชูŠู† ู†ุงู‚ุต ุนุดุฑูŠู† ู…ูŠุฉ ูˆ ุฃุฑุจุนูŠู† ุน ุงุชู†ูŠู†
354
00:47:19,930 --> 00:47:26,890
ุณุจุนูŠู† ู†ูŠูˆุชู† ู…ุชุฑ ูˆ
355
00:47:26,890 --> 00:47:36,010
ุงู„ M steady ู…ูŠู† ุงู„ู„ูŠ ู‡ูŠ ู…ูŠุฉ ูˆ ุฎู…ุณูŠู† ู†ูŠูˆุชู† ู…ุชุฑ ูˆ ุงู„
356
00:47:36,010 --> 00:47:40,410
M alternating ุณูˆุงุก ุตูุฑ
357
00:47:45,850 --> 00:47:51,050
ู†ูุณ ุงู„ู…ุนุงุฏู„ุงุช ุงู„
358
00:47:51,050 --> 00:48:01,290
A ูˆุงุญุฏ ูˆ ุงู„ KT ูˆุงุญุฏ ู‡ุชุดุบู„ ุงู„ KT ู‡ุชูƒูˆู† ู†ูุณู‡ุง ุฎู„ุงู†ุง
359
00:48:01,290 --> 00:48:02,070
ูƒู„ ู‡ุฐุง ุงู„ู„ุฎุต
360
00:48:22,720 --> 00:48:29,460
ูŠุนู†ูŠ ุงู†ุง ู‡ูƒูˆู† ุนู†ุฏู‰ ุงู„ KT ู†ูŠู†
361
00:48:29,460 --> 00:48:36,860
ุจูˆู†ุช ุชู„ุงุชุฉ ุณุจุนุฉ ูˆ ุงู„ Z net ุชู„ุชู„ุงู ุชู„ุชู…ูŠุฉ ูˆ ุนุดุฑูŠู†
362
00:48:36,860 --> 00:48:44,180
ู…ูŠู„ูŠ ู…ุชุฑ ุชูƒูŠูŠุจ ูˆ
363
00:48:44,180 --> 00:48:51,520
ุงู„ KF ู†ูุณู‡ุง
364
00:48:52,720 --> 00:49:00,300
2.07 ูŠุนู†ูŠ
365
00:49:00,300 --> 00:49:09,060
ู‡ุฐุง ู…ุด ู„ุงุฒู…ู†ุง ุงุญู†ุง
366
00:49:09,060 --> 00:49:15,700
ุงู„ู…ุนุงุฏู„ุฉ ู‡ูŠ
367
00:49:15,700 --> 00:49:16,880
ุงู„ู…ุนุงุฏู„ุฉ ุงู„ุฃุณุงุณูŠุฉ
368
00:49:22,930 --> 00:49:27,650
ู‡ูŠูƒูˆู† ุนู†ุฏู‰ sigma prime ุจุบุถ
369
00:49:27,650 --> 00:49:32,410
ุงู„ู†ุธุฑ ู‡ู‰ alternating ูˆ ู„ุง mean ุจุงู„ุซุงูˆูŠุฉ sigma X
370
00:49:32,410 --> 00:49:46,010
ุชุฑุจูŠุน ุฒู‰ ุชู„ุงุชุฉ ุชุงูˆ X Y ุชุฑุจูŠุน ู„ูƒู„ ุฃุต ู†ุต ู…ุนู†ุงุชู‡
371
00:49:46,010 --> 00:49:48,530
ุงู† ุงู†ุง ู‡ูƒูˆู† ุนู†ุฏู‰ ู‡ู†ุญุณุจ
372
00:49:52,290 --> 00:50:03,350
ุณูŠุฌู…ุง ุจุฑุงูŠู… alternating ุจุฏูŠ
373
00:50:03,350 --> 00:50:09,850
ุงุญุณุจ ุงู†ุง ุณูŠุฌู…ุง ุงูŠู‡ุŸ
374
00:50:09,850 --> 00:50:17,750
ููŠุด pending moment ุนู†ุฏู‰ ุตุญุŸ ุตูุฑ ู…ุธุจูˆุท
375
00:50:19,970 --> 00:50:29,070
ูˆ ุงู„ู€ Sigma M ู‡ุชูƒูˆู† ุงู„ู„ูŠ ู‡ูŠ KF MM
376
00:50:29,070 --> 00:50:40,110
ุนู„ู‰ Z net ู‡ูŠูƒูˆู† ุงู„ KF ุนู†ุฏ ุงุชู†ูŠู† point O ุงู„ุณุจุนุฉ ููŠ
377
00:50:40,110 --> 00:50:44,910
ุงู„ MM ุงู„ู„ูŠ ู‡ูŠ ู…ูŠุฉ ูˆ ุฎู…ุณูŠู† ุนู„ู‰
378
00:50:49,450 --> 00:50:55,390
ุฒูŠุฏ net ุชู„ุช ุชู„ุงู ูˆ ุชู„ุช ู…ูŠุฉ ูˆ ุนุดุฑูŠู† ูˆ ุนุดุฑุฉ ุฃู‚ุตุฏ
379
00:50:55,390 --> 00:51:00,330
ุซู„ุงุซุฉ ุชู„ุช
380
00:51:00,330 --> 00:51:02,330
ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช
381
00:51:02,330 --> 00:51:04,710
ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช ุชู„ุช
382
00:51:04,710 --> 00:51:11,850
ุชู„ุช ุชู„ุช
383
00:51:11,850 --> 00:51:11,910
ุชู„ุช
384
00:51:21,170 --> 00:51:27,630
ุจุงู„ู†ุณุจุฉ ู„ู„ุดูŠุฑ ุนู†ุฏ
385
00:51:27,630 --> 00:51:33,390
ุงู„ KFS ุงู„
386
00:51:33,390 --> 00:51:41,850
K F S E ู‡ู‰ ุงู„ู„ู‰ ู‡ู‰ ูˆุงุญุฏ ุจูˆู† ุณุช ุงุชู†ูŠู† ูˆุงู„
387
00:51:41,850 --> 00:51:46,930
ุฌูŠู†ุช ู†ูุณู‡ุง
388
00:51:46,930 --> 00:51:49,090
ู…ูŠุฉ ูˆ ุณุชุฉ ูˆ ุฎู…ุณูŠู† ุฃู„ู
389
00:52:16,590 --> 00:52:22,430
ู‡ู†ุง ุฃุฎุจุฑู†ุง ุงู„ู„ูŠ ู‡ูˆ ุงู„ Tao ุจุดูƒู„ ุนุงู… ุจุงู„ุณุงูˆูŠุฉ
390
00:52:22,430 --> 00:52:28,030
KF KFS
391
00:52:28,030 --> 00:52:40,410
ููŠ ุงู„ T ุฏูŠ ุงู„ capital ุนู„ู‰ ุงุชู†ูŠู† ุฌู†ุช ุนุธูŠู…ุŸ
392
00:52:47,180 --> 00:52:52,360
ู…ุนู†ุงุชู‡ ุชุงูˆ alternating ู‡ุชูƒูˆู†
393
00:52:52,360 --> 00:53:01,120
ูƒู ุงุณ ุงู„ู„ูŠ ู‡ูŠ ูˆุงุญุฏ point ุณุช ุงุชู†ูŠู† ููŠ ุชูŠ
394
00:53:01,120 --> 00:53:06,080
alternating ุงู„ู„ูŠ ู‡ูŠ ุณุจุนูŠู† ููŠ
395
00:53:06,080 --> 00:53:14,000
ุงุชู†ูŠู† ูˆ ุงุฑุจุนูŠู† ุนู„ู‰ ุงุชู†ูŠู† ููŠ ู…ูŠุฉ ูˆ ุณุชุฉ ูˆ ุฎู…ุณูŠู† ุงู„ู
396
00:53:15,700 --> 00:53:21,500
ููŠ ุนุดุฑ ุฃู‚ุตุฏ ุชู„ุงุชุฉ ูˆ
397
00:53:21,500 --> 00:53:30,160
ุงู„ tau main ู‡ุชูƒูˆู† ูˆุงุญุฏ point ุณุชุฉ ุงุชู†ูŠู† ููŠ ุชุณุนูŠู† ููŠ
398
00:53:30,160 --> 00:53:38,600
ุงุชู†ูŠู† ูˆ ุงุฑุจุนูŠู† ุนู„ู‰ ุงุชู†ูŠู† ููŠ ู…ูŠุฉ ูˆ ุณุชุฉ ูˆ ุฎู…ุณูŠู† ุงู„ู
399
00:53:38,600 --> 00:53:41,360
ููŠ ุนุดุฑ ุฃู‚ุตุฏ ุชู„ุงุชุฉ
400
00:54:04,170 --> 00:54:08,290
ู‡ุฐู‡ ุงู‚ุณู…ู‡ุง ุนู„ู‰ ุณุจุนูŠู† ูˆ ุถุฑุจู‡ุง ููŠ ุงุด ููŠ ุชุณุนูŠู† ุชุงู†ูŠุฉ
401
00:54:08,290 --> 00:54:13,070
ุงุฐุง ูƒุงู†ุช ุงุชู†ุงุด ุงู‚ุณู… ู‡ุฐู‡ ุนู„ู‰ ุณุจุนูŠู† ูˆ ุถุฑุจู‡ุง ููŠ ุชุณุนูŠู†
402
00:54:13,070 --> 00:54:21,990
ูƒู„
403
00:54:21,990 --> 00:54:27,030
ู‡ุฐุง ุจุชู‚ุณู… ุงุชู†ุงุด ูˆ ุงุชุงุฑุจุน ุงู‚ุณู…ู‡ุง ุนู„ู‰ ุณุจุนูŠู† ูˆ ุถุฑุจู‡ุง
404
00:54:27,030 --> 00:54:27,510
ููŠ ุชุณุนูŠู†
405
00:54:33,360 --> 00:54:37,460
ุฎู…ุณุฉ ุงุด point
406
00:54:37,460 --> 00:54:42,160
ุงุชู†ูŠู† ุณุชุฉ ุงูƒู…
407
00:54:42,160 --> 00:54:46,500
ุณุชุฉ ุนุดุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ
408
00:54:46,500 --> 00:54:48,980
ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ
409
00:54:48,980 --> 00:54:49,700
ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ
410
00:54:49,700 --> 00:54:51,540
ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ
411
00:54:51,540 --> 00:54:51,560
ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู† ุณุชุฉ
412
00:54:51,560 --> 00:54:55,440
ุงูƒุชุฑ ู…ู† ุณุชุฉ ุงูƒุชุฑ ู…ู†
413
00:54:55,440 --> 00:55:09,120
ุณุชุณูŠุฌู…ุง ุง ุชุฑุจูŠุน ุฒุงุฆุฏ ุชู„ุงุชุฉ ุชุงูˆ ุง ุชุฑุจูŠุน ูƒู„ ุฃุต ู†ุต
414
00:55:09,120 --> 00:55:21,640
ู‡ูŠูƒูˆู† ุทุจุนุง ู‡ุฐู‡ ุตูุฑ ู‡ุชูƒูˆู† ุตูุฑ ุฒุงุฆุฏ ุชู„ุงุชุฉ ููŠ ุฎู…ุณุชุงุด
415
00:55:21,640 --> 00:55:25,720
point ุงุชู†ูŠู† ุณุชุฉ ุชุฑุจูŠุน ูƒู„ ุชุญุช ุงู„ุฌุฒุฑ
416
00:55:28,390 --> 00:55:36,210
ุณุช ุนุดุฑูŠู† point ุฃุฑุจุนุฉ ูˆ ุงู„ sigma M prime ู‡ุชูƒูˆู†
417
00:55:36,210 --> 00:55:47,290
sigma M ุชุฑุจูŠุน ุฒูŠ ุงู„ุชู„ุงุชุฉ ุชูˆ M ุชุฑุจูŠุน ูƒู„ ุจุต ู†ุต ู‡ุชูƒูˆู†
418
00:55:47,290 --> 00:55:57,350
ุนู†ุฏู‰ ุงู„ sigma M ุงู„ุชู„ุงุชุฉ ุนุดุฑูŠู† ูˆ ู†ุตุชุฑุจูŠุน ุฒุงุฆุฏ ุชู„ุงุชุฉ
419
00:55:57,350 --> 00:56:03,850
ููŠ ุชุณุนุชุงุด ุงู„ูƒู„
420
00:56:03,850 --> 00:56:12,150
ุฃุต ู†ุต ูƒู…ุŸ
421
00:56:12,150 --> 00:56:20,890
ุญุฏ ุฃูƒู…ุŸ ุชุณุนุฉ ูˆุชุณุนูŠู† ูˆ
422
00:56:20,890 --> 00:56:24,010
ู†ุต ู…ุงุฌุฉ ุจุณ ูƒุฏู‡
423
00:56:35,380 --> 00:56:43,840
ุนู†ุฏูŠ ู‡ุฐูŠ S Y S U T ุงู†ุง ุจุญูƒูŠ Godman ู‡ุฐูŠ S E ู‡ุฐูŠ S Y
424
00:56:43,840 --> 00:56:50,540
ุนู†ุฏูŠ ูƒุฃู†ู‡ ู‡ุชุนุงู…ู„ ู…ุนุงู‡ุง ุงู†ู‡ ู‡ุฐูŠ load line ุงู„ sigma
425
00:56:50,540 --> 00:56:54,360
ุง ุจุชุงุนุชู‡ุง ุชุณุฃู„ ุงู„ S ูŠู„ุฏ ุงู„ S ุชุณุนุฉ ูˆุชุณุนูŠู† ูˆ ู†ุต
426
00:56:54,360 --> 00:56:57,820
ุฎู„ูŠู†ุง
427
00:56:57,820 --> 00:57:05,580
ู†ุญุณุจ ุงู„ slope ุงู„ R ุจุณ sigma A primeุนู„ู‰ ุงู„ sigma m
428
00:57:05,580 --> 00:57:14,260
prime ุงู„ู„ูŠ ู‡ูˆ ุณุชุฉ ูˆ ุนุดุฑูŠู† point four ุนู„ู‰
429
00:57:14,260 --> 00:57:28,220
ุชุณุนุฉ ูˆ ุชุณุนูŠู† ูˆ ู†ุต ู†ุนู…
430
00:57:28,220 --> 00:57:28,820
point
431
00:57:35,040 --> 00:57:40,840
ุฅู†ุงู† ุณุชุฉ ุงุญู†ุง
432
00:57:40,840 --> 00:57:43,260
ุงู„ .. ุงู„ .. ุงู„ God ู…ู† ุงู„ู„ู‡ ูŠุนู†ูŠ ู…ูˆ ุนุงุฏู„ุชู‡ ุฅูŠุด ู‡ูŠ
433
00:57:43,260 --> 00:57:57,780
ู‡ุฐุง ุงู„ failure ุงู„ู„ูŠ ู‡ูŠ ู‡ุชูƒูˆู† SM ุนู„ู‰ SE SA
434
00:57:57,780 --> 00:58:09,090
ุนู„ู‰ SEุฒุงุฆุฏ SM ุนู„ู‰ SUT ุจุตูˆุช ูˆุงุญุฏ ูˆุงู„ู€ lead line
435
00:58:09,090 --> 00:58:14,330
ู…ุนุฏู„ุชู‡ ู†ุญูƒูŠ
436
00:58:14,330 --> 00:58:24,830
SM ุนู„ู‰ SY ุฒุงุฆุฏ SA ุนู„ู‰ SY
437
00:58:24,830 --> 00:58:26,810
ุจุตูˆุช ูˆุงุญุฏ
438
00:58:34,270 --> 00:58:39,390
ู‡ุฐู‡ ุงู„ R critical ุตุญุŸ ุจุชุงุนุชู‡ุง ูŠุนู†ูŠ ุงู„ R critical
439
00:58:39,390 --> 00:58:42,190
ุงู„ู„ูŠ ุจูŠูƒูˆู† ุนู†ุฏู‡ุง ุงู„ factor of status ู„ู„ yields ูˆ
440
00:58:42,190 --> 00:58:51,470
ู„ู„ fatigue ู†ูุณ ุงู„ุดูŠุก ูŠุนู†ูŠ ุงู„ู†ู‚ุทุฉ ุฏูŠ satisfied ูŠุนู†ูŠ
441
00:58:51,470 --> 00:58:56,070
ู‡ูŠู† ู‡ุชูƒูˆู† ุนู†ุฏู‡ูŠู† SM
442
00:58:58,470 --> 00:59:08,030
ุฒุงุฆุฏ SA ุจูŠุณุชูˆู‰ SY ูŠุนู†ูŠ SM ุณูˆู‰ SY minus SA ู„ูˆ ู†ุนูˆุฏ
443
00:59:08,030 --> 00:59:13,350
ููŠ ู‡ุฐู‡ ุณูŠูƒูˆู† ุฏูŠ SA ุนู„ู‰
444
00:59:13,350 --> 00:59:17,270
SE ุฒุงุฆุฏ
445
00:59:17,270 --> 00:59:23,050
SY minus
446
00:59:23,050 --> 00:59:33,320
SA ุนู„ู‰ SUTุณุงูˆ ูˆุงุญุฏ ูˆุงุถุฑุจ
447
00:59:33,320 --> 00:59:41,940
ุงู„ุทุฑููŠู† ุจ SE SUT ุจุณ ู„ุนู†ุฏูŠ SA SUT
448
00:59:41,940 --> 00:59:45,080
ุฒุงุฏ
449
00:59:45,080 --> 00:59:56,380
SY SE ู†ุงู‚ุต SA SE ุณุงูˆ SE SUT
450
01:00:06,610 --> 01:00:11,310
ุนู†ุฏูŠ ู‡ุงุฎุฏ S A ุนู†ุฏูŠ
451
01:00:11,310 --> 01:00:24,930
S U T minus S E ุจุงู„ุณุงูˆูŠุฉ S E ููŠ
452
01:00:24,930 --> 01:00:33,550
S U T minus S Y ู‚ู„ุช
453
01:00:33,550 --> 01:00:34,250
S A
454
01:00:39,200 --> 01:00:47,200
ุจุชูƒูˆู† ุชุณุชุงูˆู‰ SE ููŠ
455
01:00:47,200 --> 01:00:53,660
SUT minus SY ุนู„ู‰
456
01:00:53,660 --> 01:01:01,700
SUT minus SE ุงู„ู€
457
01:01:01,700 --> 01:01:07,060
SE ุฃูƒู…ู„ ุญุณุจู†ุง ู…ูŠุฉ ูˆุชู…ุงู†ูŠุฉ
458
01:01:07,060 --> 01:01:07,460
ูˆุงุฑุจุนูŠู†
459
01:01:11,380 --> 01:01:19,960
ููŠ ุงุฑุจุนู…ูŠุฉ ูˆุฃุฑุจุนูŠู† ู…ุนูŠู†ุฉ ุซู„ุงุซู…ุงุฆูŠุฉ ูˆุงู„ุณุจุนูŠู† ุนู„ู‰
460
01:01:19,960 --> 01:01:23,120
ุงู„ุงุฑุจุนู…ูŠุฉ
461
01:01:23,120 --> 01:01:26,460
ูˆุงุฑุจุนูŠู† ู†ุงู‚ุต ู…ูŠุฉ ูˆุงุชู…ุงู†ูŠุฉ ูˆุงุฑุจุนูŠู†
462
01:01:49,470 --> 01:01:58,470
ู‡ุง ูƒู… ุชุทู„ุน ุงู„ S.A ุฎู…ุณ
463
01:01:58,470 --> 01:02:04,770
ุชู„ุงุชูŠู† ูˆ ู†ุต ู…ูŠุฌุง ุจุณูƒุงู„
464
01:02:09,690 --> 01:02:17,090
ู‡ุชูƒูˆู† ุงู„ S Y ู‡ูŠ ุชู†ุชู…ูŠุฉ ูˆ ุณุจุนูŠู† minus ุฎู…ุณ ุชู„ุงุชูŠู† ูˆ
465
01:02:17,090 --> 01:02:25,330
ู†ุต ุงูƒู… ุชุทู„ุน ุชู„ุงุชู…ูŠุฉ ูˆ ุงุฑุจุนุฉ ูˆ ุชู„ุงุชูŠู† ูˆ ู†ุต ุงูƒู…
466
01:02:25,330 --> 01:02:31,350
ุชู„ุงุชู…ูŠุฉ ูˆ ุงุฑุจุนุฉ ูˆ ุชู„ุงุชูŠู† ูˆ ู†ุต ุทูŠุจ
467
01:02:31,350 --> 01:02:40,470
ุงู„ R critical ู‡ุชูƒูˆู† ุงู„ S Aุนู„ู‰ SM ุงู„ู„ูŠ ู‡ูˆ ุฎู…ุณ
468
01:02:40,470 --> 01:02:46,270
ุชู„ุงุชูŠู† ูˆ ู†ุต ุนู„ู‰ ุชู„ุงุชู…ูŠุฉ ูˆ ุงุฑุจุนุฉ ุชู„ุงุชูŠู† ูˆ ู†ุต ุงูƒู…
469
01:02:46,270 --> 01:02:56,590
ุชุทู„ุน point ูˆุงุญุฏ ุงุญู†ุง
470
01:02:56,590 --> 01:03:00,650
ุงู„ load line ุงู„ slope ุชุจู‚ู‰ ุงูƒู… point ุงุชู†ูŠู† ุณุชุฉ
471
01:03:00,650 --> 01:03:04,350
ู…ุนู†ุงุชู‡ ู‡ุชูƒูˆู† ุงุญู†ุง ุงู„ load line ุจุชุงุนู†ุง ุฌุงูŠุฒ ุฒูŠ ู‡ูŠูƒ
472
01:03:04,350 --> 01:03:04,790
ุดูƒู„ู‡
473
01:03:10,680 --> 01:03:16,780
ุงุญู†ุง ุญูƒูŠู†ุง ู‡ุฐู‡ ุงู„ู†ู‚ุทุฉ ุจุชุงุนุชู†ุง ุงู„ .. ุงู„ sigma m
474
01:03:16,780 --> 01:03:25,020
ุชุณุนุฉ ุชุณุนูŠู† ูˆ ู†ุต ูˆู‡ุฐู‡ ุณุชุฉ ุนุดุฑูŠู† point four ุณุชุฉ
475
01:03:25,020 --> 01:03:33,340
ุนุดุฑูŠู† point four ุตุญุŸ ู…ุนู†ุงุชู‡
476
01:03:38,200 --> 01:03:43,140
ุงู„ูุชุฑุฉ ุงู„ุตูŠูุฉ ู‡ูŠูƒูˆู† ุนู†ุฏู‰ ููŠ ุญุงู„ุฉ goodman ู‡ูŠูƒูˆู†
477
01:03:43,140 --> 01:03:50,120
ุนู†ุฏู‰ sigma a prime ุนู„ู‰ se ุฒุงุฆุฏ sigma m prime ุนู„ู‰
478
01:03:50,120 --> 01:03:56,920
sut ุจุณูˆุงุญุฏ ุนู„ู‰ nf ูŠุนู†ูŠ ุนู†ุฏู‰ sigma a prime ุงู„ู„ูŠ ู‡ูŠ
479
01:03:56,920 --> 01:04:02,640
ุณุช ุนุดุฑูŠู† point four ุนู„ู‰ ู…ูŠุฉ ูˆ ุชู…ุงู†ูŠุฉ ูˆ ุฃุฑุจุนูŠู† ุฒุงุฆุฏ
480
01:04:02,640 --> 01:04:06,900
sigma m prime ุชุณุนุฉ ูˆ ุชุณุนูŠู† ูˆ ู†ุต ุนู„ู‰ ุฃุฑุจุนู…ูŠุฉ ูˆ
481
01:04:06,900 --> 01:04:21,280
ุฃุฑุจุนูŠู†ุจุณ ู‡ูˆ ูˆุงุญุฏ ุนู„ู‰ NF ูˆ ู…ู†ู‡ุง ุจุทู„ุน ุงู„ NF ูƒุงู…ุŸ
482
01:04:21,280 --> 01:04:24,580
2.47
483
01:04:24,580 --> 01:04:29,840
ุทูŠุจ
484
01:04:29,840 --> 01:04:33,080
ููŠ ุญุงู„ุฉ Langer LineุŒ Langer Line ู‡ูŠูƒูˆู† ุนู†ุฏู‡
485
01:04:45,870 --> 01:04:57,510
ุงู„ู„ูŠ ู‡ูˆ sigma a prime ุนู„ู‰ sy ุฒุงุฆุฏ sigma n prime
486
01:04:57,510 --> 01:05:05,370
ุนู„ู‰ sy ุณูˆุงุญุฏ ุนู„ู‰ ny ูŠุนู†ูŠ
487
01:05:05,370 --> 01:05:10,970
ู‡ูŠูƒูˆู† ุนู†ุฏู‰ ุณุชุฉ ูˆุนุดุฑูŠู† point fourุนุงู„ ุชู„ุช ู…ูŠุฉ ูˆ
488
01:05:10,970 --> 01:05:17,490
ุณุจุนูŠู† ุฒุงุฆุฏ ุชุณุนุฉ ูˆ ุชุณุนูŠู† ูˆ ู†ุต ุนุงู„ ุชู„ุช ู…ูŠุฉ ูˆ ุณุจุนูŠู†
489
01:05:17,490 --> 01:05:30,410
ุณูˆุงุญุฏ ุนุงู„ ุงู†ูˆุงุน ูˆ ู…ู†ู‡ุง ุงู†ูˆุงุน ุทุจุนุง
490
01:05:30,410 --> 01:05:36,830
ููŠ ุฎุทุฃ ุนู†ุฏู†ุง ุตุงุฑ ุญุฏ ุงู† ุงู†ุง ุงูƒุชุดู ุงู„ุฎุทุฃ ุฃูŠุงุด ู‡ูˆ
491
01:05:36,830 --> 01:05:38,850
ูุฎู„ู†ุง ู†ุญุตู„ ุงู†ูˆุงุน
492
01:05:44,340 --> 01:05:52,240
ุชุณุนุฉ ุฃุฑุจุนุฉ ุงุชู†ูŠู† point ุชุณุนุฉ ุฃุฑุจุนุฉ ุงู„ุฎุทุฃ ุงู„ูˆุญูŠุฏ
493
01:05:52,240 --> 01:05:58,740
ุงู„ู„ูŠ ุตุงุฑ ุนู†ู†ุง ุงู„ู„ูŠ ู‡ูˆ non-rotating shaft ุตุญุŸ
494
01:05:58,740 --> 01:06:09,060
ู…ุงู†ุงุชู‡ ุงู„ Kb Kb ู‡ุชุฎุชู„ู ุนู†ุฏู…ุง ู†ุญุณุจ D effective ุฃูˆ D
495
01:06:09,060 --> 01:06:12,960
equivalent ู‡ู†ุญุณุจ D equivalent ููŠ ุญุงู„ุฉ non-rotating
496
01:06:12,960 --> 01:06:30,680
shaftุจุณ ุชุฎุชู„ู ุงู„ S A ุงู„
497
01:06:30,680 --> 01:06:39,220
D Equal ู‡ุชูƒูˆู† point 3 7 D ู„ู†ุญุณุจ ู‡ูˆ non rotating
498
01:06:42,140 --> 01:06:48,780
ู…ุนู†ุงุชู‡ ุฏูŠ equivalent ุจูˆู† ุชู„ุงุชุฉ ุณุจุนุฉ ููŠ ุฏูŠ ูŠุนู†ูŠ
499
01:06:48,780 --> 01:06:57,080
ู‡ุชูƒูˆู† ุจูˆู† ุชู„ุงุชุฉ ุณุจุนุฉ ููŠ ุงุชู†ูŠู† ูˆุงุฑุจุนูŠู† ูƒู…ุŸ
500
01:06:57,080 --> 01:07:03,060
ู…ุนู†ุงุชู‡
501
01:07:03,060 --> 01:07:06,960
ุงู„ KB ู‡ุชูƒูˆู† ุชุณุงูˆูŠ
502
01:07:22,070 --> 01:07:31,370
ุงู„ูƒุงุจูŠ ุงู„ู„ูŠ ู‡ูˆ ูˆุงุญุฏ point two four ููŠ ุฏูŠ ุฃุณ minus
503
01:07:31,370 --> 01:07:38,110
point one oh seven ูˆุงุญุฏ point two four ููŠ ุฏูŠ ุงู„ู„ูŠ
504
01:07:38,110 --> 01:07:42,450
ู‡ูŠ ุฎู…ุณุชุงุดุฑ ูˆ ู†ุต ุฃุณ ู†ุงู‚ุต point one oh seven
505
01:07:48,710 --> 01:07:53,130
ุงู„ุงุณ ุฅูŠ ููŠ ุงู„ุญุงู„ุฉ ู‡ุฐู‡ ุณุชูƒูˆู† ุชุณุงูˆูŠ ูƒุงู„ูŠ ูƒุงู†ุช point
506
01:07:53,130 --> 01:08:00,650
8 1 ุฅุฐุง ูุงูƒุฑูŠู† ุตุญ ููŠ ูƒุงุจูŠ ุงุณู…ูˆู„ูŠู‡ุง ูƒุงุจูŠ point 9 2
507
01:08:00,650 --> 01:08:15,150
point 9 2 ููŠ 220 ุฃูƒุชุฑ ุทู„ุน ุงู„ุงุณ ุฅูŠ 63
508
01:08:15,150 --> 01:08:16,450
.9
509
01:08:18,180 --> 01:08:25,840
ู…ุนู†ุงุชู‡ ู‡ุชุตูŠุฑ ุงู„ุชุบูŠูŠุฑุงุช ุงู† ู‡ู†ุง ู‡ุชุตูŠุฑ
510
01:08:25,840 --> 01:08:30,100
ุนู†ุฏู‡ 163
511
01:08:30,100 --> 01:08:32,820
.9
512
01:08:58,710 --> 01:09:06,130
ุงู„ุญู„ ู…ุด ู‡ุชุชุบูŠุฑุŒ ู…ุงููŠุด ุนู†ุฏูƒ SE ุฃุณุงุณุงุŒ ูˆ ู‡ุฐุง ู…ุด
513
01:09:06,130 --> 01:09:11,110
ู‡ุชุฃุซุฑูƒุŒ ู‡ุฐุง ู‡ุชุฎุชู„ู ููŠ ู‡ุฐู‡ ุงู„ู‚ูŠุงู…ุฉุŒ ุจุณ ู‡ุถู„ ู…ุด ู‡ุชุฃุซุฑ
514
01:09:11,110 --> 01:09:11,710
ุนู„ู‰ ุงู„ุญู„
515
01:09:43,090 --> 01:09:43,530
ุทูŠุจ
516
01:10:39,030 --> 01:10:43,870
ููŠู‡ ู‡ู†ุฑุฌุน ุงู„ fatigue failure for brittle materials
517
01:10:43,870 --> 01:10:47,930
ุงู„
518
01:10:47,930 --> 01:10:51,010
fatigue failure for brittle materials ุงู„ู„ูŠ ุจุชูƒูˆู†
519
01:10:51,010 --> 01:10:59,970
ุงู„ design equation ุจุญุณุจ
520
01:11:18,720 --> 01:11:25,980
ู‡ุฐู‡ SUT ูˆู‡ุฐู‡ ุงู„ู€ Sigma M ูˆู‡ุฐู‡ ุงู„ Sigma Alternating
521
01:11:25,980 --> 01:11:35,460
ูˆู‡ุฐู‡ S A ู‡ู†ุง Sigma M ู…ูˆุฌุจุฉ ูŠุนู†ูŠ ุนู†ุฏ positive mean
522
01:11:35,460 --> 01:11:42,380
stress ูˆู‡ู†ุง Sigma M ุนุดุงู† ู…ุนู†ุงู‡ negative ุงู„ failure
523
01:11:42,380 --> 01:11:51,910
line ู‡ุฐุง non-linearุงู„ู„ูŠ ู‡ูˆ ู‡ูŠูƒูˆู† ุนู†ุฏู‰ S A ุนู„ู‰ S E
524
01:11:51,910 --> 01:12:07,210
ุจุงู„ุณุงูˆูŠุฉ ูˆุงุญุฏ minus S M ุนู„ู‰ S U T ุนู„ู‰
525
01:12:07,210 --> 01:12:14,860
ูˆุงุญุฏ ุฒุงุฏ S M ุนู„ู‰ S U T ู‡ุฐุง ููŠ ุงู„ุฑุจุน ุงู„ุฃูˆู„ููŠ ุงู„ุฑุจุน
526
01:12:14,860 --> 01:12:20,100
ุงู„ุชุงู†ูŠ ุงุฐุง ูƒุงู†ุช ุงู„ sigma ุงู… ุงู„ุณุงู„ุจ ุง ูŠุนู†ูŠ ุทุจุนุง ุงุฐุง
527
01:12:20,100 --> 01:12:30,020
ู‡ูŠู† ุจุชุนูˆุฏ ุงุฐุง ุจุชุนูˆุฏ ุนู† ุณ ุง ุจุงู„ุณุงูˆูŠุฉSigma A ูˆ S M
528
01:12:30,020 --> 01:12:36,560
ุจูŠุณูˆุง N Sigma M ูŠุญุตู„ ุนู„ู‰ Design Equation N Sigma
529
01:12:36,560 --> 01:12:41,060
Alternating ุนู„ู‰ S E ุจูŠุณูˆุง ูˆุงุญุฏ ู…ุงู†ุณ N Sigma M ุนู„ู‰
530
01:12:41,060 --> 01:12:51,500
S U T ุนู„ู‰ ูˆุงุญุฏ ุฒุงุฏ N Sigma M ุนู„ู‰ S U T For
531
01:12:51,500 --> 01:12:52,320
a radial line
532
01:12:56,720 --> 01:13:00,980
ุงู„ู€ slope ุจุชุงุน R ุจุชูƒูˆู†
533
01:13:00,980 --> 01:13:12,400
ู†ู‚ุทุฉ ุชู‚ุงุทุน ุญุงุฏุฉ ุนุจุงุฑุฉ ุนู† S M ูˆ S A ูˆุงู„ู€ R ุจูŠุณุงูˆูŠ S
534
01:13:12,400 --> 01:13:18,650
A ุนู„ู‰ S Mุจุชูƒูˆู† ุงู„ S A ู…ูˆุทู†ุฉ ุจุงู„ุนู„ุงู‚ุฉ ุงู„ู„ูŠ ุงู†ุชูˆุง
535
01:13:18,650 --> 01:13:22,350
ุดุงูŠููŠู†ู‡ุง S A ุจูŠุตูŠุญ R S U T ุฒุงุฏ S E ุนู„ู‰ ุงุชู†ูŠู† ููŠ
536
01:13:22,350 --> 01:13:27,750
ู†ุงู‚ุต ูˆุงุญุฏ ุฒุงุฏ ุฌุฒุก ุชุฑุจูŠุน ู„ูˆุงุญุฏ ุฒุงุฏ ุงุฑุจุนุฉ R S U T S
537
01:13:27,750 --> 01:13:32,110
E ุนู„ู‰ ุงูุชุญ course R S U T ุฒุงุฏ S E second course
538
01:13:32,110 --> 01:13:37,810
ู„ูƒู„ ุชุฑุจูŠุน ูƒู„ู‡ ุชุญุช ุงู„ุฌุฒุฑ ููŠ ุงู„ second quadrant
539
01:13:37,810 --> 01:13:45,170
ุจุชูƒู…ู„ ุนู„ุงู‚ุฉ ุฅูŠุด linearูƒูˆู† ุนู„ุงู‚ุฉ linear ุจูŠูƒูˆู† ุนู„ุงู‚ุฉ
540
01:13:45,170 --> 01:13:48,810
ุจูŠู† ุงู„ S A ูˆ ุงู„ S M ุฒูŠ ู…ุง ุงู†ุช ุดุงูŠููŠู† linear S A
541
01:13:48,810 --> 01:13:54,470
ุจูŠุณุชูˆู‰ S Eุฒุงุฏ ุงูุชุญ ู‚ูˆุณ SE ุนู„ู‰ SUT ู…ุงู†ุณ ูˆุงุญุฏ ููŠ SM
542
01:13:54,470 --> 01:13:58,030
ุทุจุนุง ุงู„ SE ูˆ ุงู„ .. ูˆ ุงู„ SUT material properties
543
01:13:58,030 --> 01:14:02,650
ูŠุนู†ูŠ ูƒู„ู‡ุง constants ูุงู„ุนู„ุงู‚ุฉ linear ุจูŠู† ุงู„ SE ูˆ ุงู„
544
01:14:02,650 --> 01:14:10,230
SM ู„ุงุญุธูˆุง ุงู„ SE ุฃู‚ู„ ู…ู† ุงู„ SUT ูุจูŠูƒูˆู† ุงู„ slope
545
01:14:10,230 --> 01:14:13,430
negative ุฏุงูŠู…ุง ุนุดุงู†ูƒ ุฌุงูŠ ูุนู„ุง ุงู„ slope ุฃูƒุชุฑ ู…ู†
546
01:14:13,430 --> 01:14:15,610
ุชุณุนูŠู† ุฏุฑุฌุฉ ุฒุงูˆูŠุฉ ูุงุฑุฌูŠุฉ
547
01:14:20,030 --> 01:14:26,050
ุทุจุนุง ู‡ุฐู‡ ุงู„ู…ุนุงุฏู„ุฉ for cast iron ุชุงุจู„ A24 ููŠ ุงู„ูƒุชุงุจ
548
01:14:26,050 --> 01:14:30,090
ู…ุงุนุทูŠู†ูŠ ุฎุตุงุฆุต ู„ grade cast iron
549
01:14:52,930 --> 01:14:58,350
ุชู„ุงุชุฉ ูˆ ุนุดุฑูŠู† ุตุญุŸ
550
01:14:58,350 --> 01:15:09,490
ุงุฑุจุนุฉ ูˆ ุนุดุฑูŠู† ู‡ุฐุง ุงุฑุจุนุฉ ูˆ ุนุดุฑูŠู† ู‡ุฐุง ุฎู„ูŠู†ุง
551
01:15:09,490 --> 01:15:15,450
ู†ู„ูู‡ ู‡ุฐู‡
552
01:15:15,450 --> 01:15:15,770
ุงู‡
553
01:15:22,380 --> 01:15:26,640
ุนู†ุฏู‰ ุงู„ู„ู‰ ู‡ูˆ ุงู„ mechanical properties of three non
554
01:15:26,640 --> 01:15:29,620
-steel metals ู‡ุฏู‰ ุงู„ typical properties of a great
555
01:15:29,620 --> 01:15:33,820
cast iron ู…ุนุทูŠู† ุงู„ุชู†ุณุงูŠู„ strength in tension ูˆุนู†ุฏู‰
556
01:15:33,820 --> 01:15:38,220
ุงู„ strength in compression ูˆ ุงู„ shear modulus of
557
01:15:38,220 --> 01:15:41,400
rupture SSU ูˆ ุงู„ modulus of elasticity ูˆ ุงู„
558
01:15:41,400 --> 01:15:46,220
endurance limit ู†ูุณ ุงู„ limit ุทุจุนุง ู‡ู†ุญูƒูŠ ู…ู„ุงุญุธุฉ ุญุงุท
559
01:15:46,220 --> 01:15:47,260
ุนู„ูŠู‡ุง ุงู„ู†ุฌู…ุฉ
560
01:15:49,580 --> 01:15:56,120
ู…ุนุทูŠู†ูŠ ุงู„ fatigue stress concentration factor ู‡ู†ุง
561
01:15:56,120 --> 01:16:02,760
ุนู†ุฏูŠ ุงู„ endurance limit already includes k a ูˆ kb
562
01:16:02,760 --> 01:16:09,100
ูŠุนู†ูŠ ู‡ูŠ ู‡ุชูƒูˆู† ุฌุงู‡ุฒุฉ ููŠู‡ุง ู…ุดู…ูˆู„ุฉ k a ูˆ k b ู…ุดู…ูˆู„ุฉ
563
01:16:09,100 --> 01:16:13,840
average kc for axial and torsional is point nine
564
01:16:21,970 --> 01:16:31,050
ุทูŠุจ ุดูˆู ู…ุซุงู„ a grade 30 gray cast iron is
565
01:16:31,050 --> 01:16:35,270
subjected to a load F applied to a 1 ููŠ bone 3.75
566
01:16:35,270 --> 01:16:39,130
inch cross section link with a 0.25 inch diameter
567
01:16:39,130 --> 01:16:43,830
hole drilled in the center ูŠุนู†ูŠ ุนู†ุฏูŠ ู‚ุทุนุฉ .. ู‡ุงูŠ
568
01:16:43,830 --> 01:16:47,470
ุงู„ู‚ุทุนุฉ ุนุฑุถู‡ุง
569
01:16:48,930 --> 01:16:54,990
ูˆุงุญุฏ ุงู†ุด ูˆุณู…ูƒุชู‡ุง ุชู„ุชุฉ ุน ุชู…ุงู†ูŠุฉ ุงู†ุด ูˆููŠู‡ุง ุซู‚ูˆุจ ูƒุชุฑ
570
01:16:54,990 --> 01:17:03,610
ูˆุฑุจุน ุงู†ุด ูˆููŠ ุนู„ูŠู‡ุง load F load F ูˆู‡ูŠ grade 30
571
01:17:03,610 --> 01:17:07,670
grade cast iron the
572
01:17:07,670 --> 01:17:12,400
service are machine machine servicesin the
573
01:17:12,400 --> 01:17:15,780
neighborhood of the hole ุจูŠู‡ ุนู„ู‰ ู…ู‚ุฑุจ ู…ู† ุงู„ุซู‚ูˆุจ
574
01:17:15,780 --> 01:17:18,480
what is the factor of safety guarding against
575
01:17:18,480 --> 01:17:22,960
failure under the following conditions ุงูˆู„ุด ุงู„
576
01:17:22,960 --> 01:17:30,280
load F equal one thousand pound four tensile ูŠุนู†ูŠ
577
01:17:30,280 --> 01:17:36,220
steady ุงู„ load ุซุงุจุช ุงู„ุญุงู„ุฉ ุงู† ุงู„ load is one
578
01:17:36,220 --> 01:17:39,840
thousand pound four repeatedly applied ูŠุนู†ูŠ ุจุชุชุบูŠุฑ
579
01:17:39,840 --> 01:17:44,060
ู…ู† ุณูุฑ ู„ุฃู„ูุงู„ุญุงู„ุฉ ุจุชุงุนุฉ the load flashes between
580
01:17:44,060 --> 01:17:51,120
ุจุชุบูŠุฑ ู…ู† ู†ุงู‚ุต ุงู„ู ู„ุชู„ุช ู…ูŠุฉ ุงู„ุงู† ู‡ู†ุดูˆู ูƒูŠู ุญู„ู‡ ุนุดุงู†
581
01:17:51,120 --> 01:18:00,500
ุงุฎุชุตุฑ ุงู„ูˆู‚ุช ู‡ู†ุทู„ุน ุงู„ูƒุชุงุจ ุตุญ
582
01:18:00,500 --> 01:18:01,440
ุญุงูƒู… ุชู‚ุฑูŠุจุง
583
01:18:15,910 --> 01:18:16,930
ุทูŠุจ ู‡ุงูŠ 300
584
01:18:56,250 --> 01:19:02,790
ู‡ุฐุง ุฎู„ุตุช ู…ู†ู‡ ุงู‡ ู…ุงุดูŠ ู‡ูˆ
585
01:19:02,790 --> 01:19:09,710
ู‡ุฐุง ุทูŠุจ ุงูˆู„ ุดูŠ ู‡ูˆ ุทู„ุน ุงู„ุฎูˆุงุต ุงู„ู…ูŠูƒุงู†ูŠูƒูŠุฉ ู…ู† ุงู„
586
01:19:09,710 --> 01:19:15,210
table A 24 ุทู„ุน ุงู„ุฎูˆุงุต ุงู„ู…ูŠูƒุงู†ูŠูƒูŠุฉ ูŠุนู†ูŠ ุทู„ุน ุงู„ SUT
587
01:19:15,210 --> 01:19:21,030
31 ูˆ ุงู„ SUC ุงุญู†ุง ุฑุฏู‡ ุญูƒูŠู†ุง ุงู„ KA ูˆ ุงู„ KP ู…ุดู…ูˆู„ูŠู†
588
01:19:21,030 --> 01:19:24,370
ููŠ ุงู„ SE prime ู‡ุฐุง ุทุจุนุง ุงู„ KA ูˆ ุงู„ SE prime ู‡ูˆ
589
01:19:24,370 --> 01:19:28,430
ุงู„ู„ูŠ ุฌุงุจู‡ุง ู…ู† ุงู„ table ู†ูุณู‡ูˆ ู…ุดุจูˆู„ ููŠู‡ุง ุงู„ k a ูˆ
590
01:19:28,430 --> 01:19:34,070
ุงู„ kbc ู‡ูˆ ุจูŠุญูƒูŠู„ูƒ since ุงู„ู„ูŠ ุงู†ุง ุนู†ุฏู‡ ุงู„ load ู†ูˆุนู‡
591
01:19:34,070 --> 01:19:37,890
axial load ู…ุนู†ุงุชู‡ ุงู„ kc ู‡ุชูƒูˆู† ุญูƒูŠู†ุง ุชุณุนุฉ ู…ู† ุนุดุฑุฉ
592
01:19:37,890 --> 01:19:42,830
ู…ุนู†ุงุชู‡ ุงู„ se ู‡ุชูƒูˆู† ุงู„ู„ูŠ ู‡ูŠ ุงุฑุจุนุชุงุด ููŠ ุชุณุนุฉ ู…ู† ุนุดุฑุฉ
593
01:19:42,830 --> 01:19:48,350
ุชุทู„ุน ุงุชู†ุงุด ุจูˆู†ุช ุณุชุฉ kpsi ุทุจุนุง ู‡ูˆ ุจูŠุฌูŠ ูŠุญุณุจ ุงู„
594
01:19:48,350 --> 01:19:50,630
cross section ุงูŠู‡ ุจูŠุญุณุจ ุงู„ net ุจูŠุทุฑุญ ู…ู†ู‡ุง ุงู„ู‚ุทุฑ
595
01:19:50,630 --> 01:19:56,220
ุจูŠุทุฑุญ ุงู„ุนุฑุถูˆุงุญุฏ ุงู†ุด ุจูŠุทู„ุน ู…ู†ู‡ ุฑุจุน ูŠุนู†ูŠ ู‡ุชูƒูˆู† ูˆุงุญุฏ
596
01:19:56,220 --> 01:19:59,260
ู†ู‚ุต ุฑุจุน ููŠ ุงู„ุณู…ุงูƒุฉ ุจูŠุทู„ุนูŠ ุงู„ cross sectional area
597
01:19:59,260 --> 01:20:04,320
ูˆ
598
01:20:04,320 --> 01:20:09,020
ุจุฑูˆุญ ุนู„ู‰ ุงู„ tables ุจูŠุทู„ุน ุงู„ geometric stress
599
01:20:09,020 --> 01:20:11,640
concentration factor ุจู„ุฒู…ู‡ ุงู„ู„ูŠ ู‡ูˆ ุฏูŠ ุจุชุงุนุฉ ุงู„ู‚ุทุฑ
600
01:20:11,640 --> 01:20:18,060
ูˆ ุนุฑุถ ุงู„ู‚ุทุนุฉ D ุนู„ู‰ W ุจูŠุทู„ุน ู…ู†ู‡ ุงู„ KT ุงู„ cast iron
601
01:20:18,060 --> 01:20:19,160
ุงู„ Q ุจุชุงุนุชู‡
602
01:20:27,550 --> 01:20:34,690
ุงู„ุญู„ูˆู„ ุงู„ู„ูŠ ุญูƒูŠู†ุง steady load ุฃู„ู pound ู…ุนู†ุงุชู‡ ุงู„
603
01:20:34,690 --> 01:20:38,090
sigma alternating ุจุงู„ุณุงูˆูŠุฉ ุฒูŠุฑูˆ ูˆุงู„ู„ูˆุฏ ู…ุนู†ุงุชู‡
604
01:20:38,090 --> 01:20:38,810
static
605
01:20:41,340 --> 01:20:46,180
ุงู„ุงู† ููŠ ุญุงู„ุฉ ุงู„ .. ุงุญู†ุง ู†ุญูƒูŠ ููŠ ุงู„ุดุจุทุฉ ุงู„ุฎุงู…ุณ ููŠ
606
01:20:46,180 --> 01:20:51,700
ุญุงู„ุฉ ุงู„ cast iron ู„ู…ุง ูŠูƒูˆู† under static loading we
607
01:20:51,700 --> 01:20:55,240
ignore ุงู„ stress concentration effect we don't
608
01:20:55,240 --> 01:20:58,260
apply ุงู„ stress concentration effect ูุงุนุทูˆู„ ุญุงุฌุฉ
609
01:20:58,260 --> 01:21:03,980
ู‡ูˆ ุงู„ sigma m ุจูŠุณุชูˆู‰ Fm ุนู„ู‰ a ุญุณุจ ุงู„ mean stress
610
01:21:03,980 --> 01:21:09,220
ุงู„ Fm ุงู„ู„ูŠ ู‡ู‰ ุงู„ู ุนู„ู‰ ุงู„ areaุจุนุฏูŠู† ุงุญูƒูŠ ุงู„ N ุจุณุงูˆู„
611
01:21:09,220 --> 01:21:13,020
ุงุญู†ุง ุญูƒูŠู†ุง ููŠ ุญุงู„ุฉ ุงู„ brittle materials ุจู†ุณุชุฎุฏู… ุงู„
612
01:21:13,020 --> 01:21:15,560
SUT ููŠ ุญุงู„ุฉ ุงู„ ductile materials ุจู†ุณุชุฎุฏู… ุงู„ุฃุณูˆุงูŠ
613
01:21:15,560 --> 01:21:19,300
ุตุญุŸ ูุงู†ุชุธุฑุช ุงู„ N ุจุณุงูˆู„ ุงู„ C2 ุนู„ู‰ ุงู„ sigma ุนุงู… ุญุณุจ
614
01:21:19,300 --> 01:21:22,700
ุงู„ factor of safety ู‡ุฐู‡ ุงู„ุญุงู„ุฉ ุงู„ุฃูˆู„ู‰ ุงู„ุญุงู„ุฉ
615
01:21:22,700 --> 01:21:27,360
ุงู„ุชุงู†ูŠุฉ ุงู„ู„ูŠ ู‡ูˆ ุจุชุชุบูŠุฑ ู…ู† ุตูุฑ ู„ ุฃู„ู ู…ุนู†ุงุชู‡ ู‡ุชูƒูˆู†
616
01:21:27,360 --> 01:21:31,160
ุงู„ ุงู„ ุงู„ sigma alternating
617
01:21:41,140 --> 01:21:45,420
ุงู„ุญู„ูˆู„ุฉ ู‡ูŠู‡ุง ู…ุงููŠุด ู‡ูŠ ุงู„ุญู„ู‚ุฉ ุงู„ุฃูˆู„ู‰ ู…ุธุจูˆุท static
618
01:21:45,420 --> 01:21:53,340
loading ูู‰ ุจุณ ุนู†ุฏู‰ sigma M ุญู„ู‚ุฉ
619
01:21:53,340 --> 01:21:56,740
ุชุงู†ูŠุฉ ุงู„ F A ุจูŠุณุงูˆูŠ F M ุงู„ู„ู‰ ู‡ู‰ ุงู„ main load ูˆ
620
01:21:56,740 --> 01:21:59,960
ุงู„ู‚ุงุทู†ูŠู† ุจู†ูุณ ุงู„ุงุดู‡ ู‡ูƒูˆู† ุงู„ู ู„ุงุชู†ูŠู† ุฎู…ุณู…ูŠุฉ ู…ุนู†ุงู‡
621
01:21:59,960 --> 01:22:02,600
ุงู„ sigma alternating ุงู„ู„ู‰ ุงู†ุง ุนู†ุฏู‰ dynamic loading
622
01:22:02,600 --> 01:22:07,030
ู…ุด staticูู‡ูŠุญุท ุงู„ stress concentration factor
623
01:22:07,030 --> 01:22:12,610
sigma A ุจูŠุณุชูˆู‰ sigma M ุจูŠุณุชูˆู‰ KF FA ุนู„ู‰ A ุชุทู„ุน 2.3
624
01:22:12,610 --> 01:22:18,170
Kpsi ุงู„ .. ุงู„ .. ุงู„ .. ุงู„ mail ุจุชุงุน ุงู„ load line
625
01:22:18,170 --> 01:22:22,790
ุงู„ู„ูŠ ู‡ูŠ sigma A ุนู„ู‰ sigma M ุจูŠุณุชูˆู‰ ุฅูŠุดุŸ ูˆุงุญุฏ ูˆุญุณุจ
626
01:22:22,790 --> 01:22:29,510
ุฅูŠุด ุงู„ SA ู…ุนุงุฏู„ุฉ ุงู„ุชู‚ุงุทุน ุจูŠู† ุงู„ load line ูˆ ุงู„
627
01:22:29,510 --> 01:22:34,940
fatigue lineุจุนุฏูŠู† ุญูƒูŠ ุงู„ุฃู† ุจูŠุณุชูˆู‰ S A ุนู„ู‰ ุณุฌู…ุง M
628
01:22:34,940 --> 01:22:38,620
ุชุทู„ุน ุชู„ุงุชุฉ point ุชู„ุงุชุฉ ุงุชู†ูŠู† ุญุงู„ุฉ ุชู„ูˆุช ุจุชุชุบูŠุฑ ู…ู†
629
01:22:38,620 --> 01:22:46,320
ู†ุงู‚ุต ุงู„ู ู„ุชู„ุงุชู…ูŠุฉ ุงู„ F alternating ุญุณุจู‡ุง ุจุชุทู„ุน
630
01:22:46,320 --> 01:22:50,220
ุณุชู…ูŠุฉ ูˆ ุฎู…ุณูŠู† ูˆ ุงู„ F M ุจุชุทู„ุน ู†ุงู‚ุต ุชู„ุงุชู…ูŠุฉ ูˆ ุฎู…ุณูŠู†
631
01:22:50,220 --> 01:22:54,360
ู…ุงู†ุนุทูŠ ุงุญู†ุง ููŠ ุงู„ ู…ุฑุจุน .. ููŠ ุงู„ุฑุจุน ุงู„ุชุงู†ูŠ ุญุณุจ ุงู„
632
01:22:54,360 --> 01:22:59,240
sigma A ุญุท ุงู„ stress concentration factor ุญุณุจ ุงู„
633
01:22:59,240 --> 01:23:05,760
sigma Mูˆ ุงู„ load line ุงู„ slope ุญุณุจู‡ ุจุนุฏูŠู† ุญุณุจ ู†ู‚ุทุฉ
634
01:23:05,760 --> 01:23:08,720
ุชู‚ุงุทุน ุงู„ load line ู…ุน ุงู„ failure .. ุงู„ fatigue
635
01:23:08,720 --> 01:23:14,900
failure line ุจุชุทู„ุน ุชู…ุงู†ุชุงุด ูˆ ู†ุต Kpsi ูุงูƒุฑู‡ ุณุช
636
01:23:14,900 --> 01:23:18,920
ุจูŠูƒูˆู† SA ุนู„ู‰ ุณูŠุฌู…ุงูŠุฉ ุจุชุทู„ุน ุณุชุฉ point two
637
01:23:23,370 --> 01:23:29,510
ุงู„ุฃู†ู‚ู ุจู„ุฒู…ุด ููŠ ุงู„ .. ูŠุนู†ูŠ ุฅูŠุด ุงุณู…ู‡ุŸ ููŠ ุงู„ brittle
638
01:23:29,510 --> 01:23:35,230
materials ููŠ
639
01:23:35,230 --> 01:23:44,170
ุฃูŠ ุณุคุงู„ุŸ ู‡ูŠูƒู… ูŠูƒูˆู† ุฎู„ุตู†ุงุŒ
640
01:23:44,170 --> 01:23:46,610
ู…ุงุดูŠุŸ ุชุงูƒู„ ุฃุนุธู