The Analysis of the Characteristics of Infinitely Short Journal Bearings Modified by Equivalent Viscosity
The characteristics of unlimited short journal bearing has been analyzed by using the equivalent viscosity correction model under thin film lubrication conditions. The interaction between the lubricant and the surface within a very small gap has been seriously considered. The changes of regular pattern of lubricant properties are comprehensive analyzed and researched. Unlimited short journal bearing is regarded as the research object. After researching, the varying regularity of its characteristics has been received. At the same time, the relationship between parameters and bearing performance has been established. The basis are provided for theoretical research and practical engineering calculations.
The Model of Equivalent Viscosity and Test in Thin Film Lubrication
Equivalent viscosity model is proved by comparing calculation results of viscosity correct formation advanced to ultra thin film lubrication with the test data in this paper. The results of calculation agree with the test data. Such a model provides an important tool for engineering design and scientific calculation.
Catalytic removal of tert-butyldimethylsilyl (TBS) ether by PVP-I
Abstract A mild, efficient and rapid protocol the deprotection of alcoholic TBDMS ethers using PVP-1 as catalyst in methanol, the procedure of deprotection of various TBDMS ethers were found to be very convenient, easy work-up, high yielding.