B737-800
Human-Machine Interface; Situational Awareness; Workload
Deviation - Altitude Crossing Restriction Not Met; Deviation - Speed All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Issued New Clearance; Flight Crew FLC Overrode Automation; General Maintenance Action
Weather; Human Factors
Given crossing restriction 10 north of HIELY at 13;000. Got behind on decent; asked for relief; controller gave us a heading and descend to 13;000. Entered Moderate Chop; overspeed of 5 knots or so clean configuration. I was pilot flying; rushing to comply; along with chop; I got behind aircraft.  I need to do a better job cross checking the automation against what the restrictions actually are. I was trusting in the automation too much for when to start my decent.  As a result; I got behind and rushed to comply; or attempted to do so; that combined with the moderate chop and several heading changes; the overspeed occurred.
I was the pilot monitoring. We were asked to cross 10 nm north of HILEY intersection at 13;000 feet. We started down late and were going to have trouble making the restriction. We asked for relief and the controller gave us vectors off the arrival. During our descent to comply with the crossing restriction; we overspeed the aircraft by approximately 5 kts for 5 seconds at FL180 (345kts indicated). Corrected our condition and continued to MIA. When we arrived at MIA; I wrote it up and waited for maintenance to show up so we could give them as much info as they needed.Over reliance on automation for planning the descent. Double check that it makes sense with the winds. Be more aware of speed control when using vertical speed to try and comply with a crossing restriction. The VNAV profile was not going to have us down early enough for the crossing restriction; so the pilot flying used vertical speed to try and intervene and catch up. That along with turbulence and the controller giving us additional instructions lead to the speed creeping up and overspeeding the aircraft.
A B737-800 flight crew experiences an over speed during descent while attempting to comply with a crossing restriction after a late start for the descent.