A continuous contact force model for impact analysis in multibody dynamics

doi:10.1016/j.mechmachtheory.2020.103946

CORC > 力学研究所 > 中国科学院力学研究所 > 先进制造工艺力学重点实验室

	A continuous contact force model for impact analysis in multibody dynamics
	Zhang J 3; Li WH(李文皓)1,2; Zhao L 3; He GP 3
刊名	MECHANISM AND MACHINE THEORY
	2020-11-01
卷号	153 页码:25
关键词	Contact force model Energy loss Complex geometries Multibody dynamics
ISSN号	0094-114X
DOI	10.1016/j.mechmachtheory.2020.103946
通讯作者	He, Guangping(hegp55@126.com)
英文摘要	A new continuous contact force model for contact problems with complex geometries and energy dissipations in multibody systems is presented and discussed in this work. The model is developed according to the Hertz law, and a hysteresis damping force is introduced for modeling the energy dissipation during the contact process. As it is almost impossible to obtain an analytical solution based on the system dynamic equation, an approximate dynamic equation for the collision system is proposed, achieving a good approximation of the system dynamic equation. An approximate function relating the deformation velocity and indentation depth is determined based on the approximate dynamic equation and is utilized to calculate the energy loss due to the damping force. Then, a primary formula of the hysteresis damping parameter is derived by combining energy balance and the law of conservation of linear momentum. The new model is developed by modifying the primary formula through nondimensional analysis. The comparison with published experimental data and the analysis of the simulation data of eight different continuous contact models reveal the capability and high precision of the new model as well as the effect of the geometry of the contacting surfaces on the dynamic system response. (C) 2020 Elsevier Ltd. All rights reserved.
分类号	二类/Q1
资助项目	National Key Research and Development Plan of China[2019YFB1309600] ; National Natural Science Foundation of China[11702294] ; National Natural Science Foundation of China[51775002] ; Joint Program of Beijing Municipal Foundation and Education Commission[KZ202010009015] ; Beijing Natural Science Foundation[3194047]
WOS关键词	RESTITUTION COEFFICIENT ; CLEARANCE JOINTS ; HERTZ ; BEHAVIOR ; SYSTEMS ; SIMULATION ; COLLISION ; HUNT
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000566908300008
资助机构	National Key Research and Development Plan of China ; National Natural Science Foundation of China ; Joint Program of Beijing Municipal Foundation and Education Commission ; Beijing Natural Science Foundation
其他责任者	He, Guangping
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/85216]
专题	力学研究所_先进制造工艺力学重点实验室空天飞行科技创新研究中心（筹）
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China; 3.North China Univ Technol, Sch Mech & Mat Engn, 9 Jinyuanzhuang Rd, Beijing 100144, Peoples R China;
推荐引用方式 GB/T 7714	Zhang J,Li WH,Zhao L,et al. A continuous contact force model for impact analysis in multibody dynamics[J]. MECHANISM AND MACHINE THEORY,2020,153:25.
APA	Zhang J,李文皓,Zhao L,&He GP.(2020).A continuous contact force model for impact analysis in multibody dynamics.MECHANISM AND MACHINE THEORY,153,25.
MLA	Zhang J,et al."A continuous contact force model for impact analysis in multibody dynamics".MECHANISM AND MACHINE THEORY 153(2020):25.