Study on dynamic responses of planar multibody systems with dry revolute clearance joint: Numerical and experimental approaches

被引：43
|
作者：
Wang, Xupeng [1 ]
Liu, Geng [2 ]
Ma, Shangjun [2 ]
Tong, Ruiting [2 ]
机构：
[1] Xian Univ Technol, Dept Ind Design, Xian 710054, Shaanxi, Peoples R China
[2] Northwestern Polytech Univ, Shaanxi Engn Lab Transmiss & Controls, Xian 710072, Shaanxi, Peoples R China
来源：
JOURNAL OF SOUND AND VIBRATION | 2019年 / 438卷
基金：
中国国家自然科学基金;
关键词：
Multibody system; Dynamic responses; Nonlinear impact force model; Slider-crank mechanism; Experimental test rig; SLIDER-CRANK MECHANISM; BEHAVIOR; MODEL;
D O I：
10.1016/j.jsv.2018.08.052
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The main purpose of this work is to present a comprehensive methodology to study the dynamic responses of multibody dynamics with revolute clearance joint, which is based on an improved nonlinear impact force model and a modified friction force model. A planer slider-crank mechanism with clearance joint between connecting rods and slider is used as an example. Firstly, the simulation models are presented which can take into account the influence of different clearance size, crank speed and material on dynamic responses of planar multibody systems. Secondly, an experimental test rig is designed, which can monitor the dynamic responses of the slider-crank mechanism by using a linear voltage differential transducer (LVDT) and an accelerometer. Then, the experimental tests are conducted, which have the same working conditions with numerical simulations, and the slider acceleration and FFT analysis of slider acceleration are presented as two measurements. Finally, the experimental and numerical results are compared and discussed, which validate the nonlinear impact force model in clearance joint, and the numerical results of dynamic responses of mechanism with clearance joint. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：116 / 138
页数：23
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