Theoretical Deduction and Experimental Argumentation of Peak Value of Impact Acceleration
This paper deduces the mathematical model of peak acceleration generated by collision between rigid cylinder and elastic half space body in Hertz Contact Theory, and, based on the impact test results of different gasket materials with HALL-1 High Acceleration Impact Instrument for Microelectronic Devices curve fit the relationship between peak acceleration and velocity, compare and analyze the acceleration error between deduction formula and fitting relation formula.In view of the influence of different frictional coefficients of the gasket materials elastomers, the deviation of the deductive formula is corrected.The results show that the error is mainly affected by different friction conditions between the gasket materials, and between the gasket material and the impact body.After modification, the relative error of peak acceleration between Hertz theoretical deduction and experimental fitting can be reduced to 10% and below, by testing block gasket materials or layering gasket materials with a smaller frictional coefficient (<0.2).
Hertz Contact Theory peak value of impact acceleration impact velocity impact test error analysis
Chun-Min Chen
Shanghai University of Engineering Science, Shanghai 201620, China
国际会议
2017上海纺织服装创意创新研究生学术论坛暨第十一届纺织服装创新国际论坛
上海
英文
232-237
2017-07-01（万方平台首次上网日期，不代表论文的发表时间）