A general contact force model for collisions with zero indentation or remaining surface deformation at the moment of separation

IF 2.2 3区工程技术 Q2 MECHANICS

Archive of Applied Mechanics Pub Date : 2025-05-07 DOI:10.1007/s00419-025-02828-1

Huili Huang, Guofeng Yao, Min Wang, Jianhong Hou, Yuancheng Zhu

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引用次数: 0

Abstract

In practical engineering, collisions with zero indentation or remaining surface deformation following separation have attracted widespread attention. A general contact force model that can effectively simulate these two types of collisions is proposed in this work based on the typical formula of the continuous model. By introducing equivalent velocity, an approximate dynamic equation for the system can be established. Based on the principle of energy equivalence, the basic formula for the key parameter hysteresis damping coefficient is derived by approximating the dynamic equations and system dynamics equations. Based on the consistency of the restitution coefficient before and after collision, a general contact force model is obtained by modifying the basic formula. The effectiveness of the model is verified by comparing the simulation results with experimental results for corresponding types of collisions. Compared with other existing models, the model can not only simulate collisions with remaining surface deformation with high accuracy but also better describe collisions with zero separation indentation. The general contact force model will aid in the dynamic analysis of multibody systems.

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在分离时刻无压痕或剩余表面变形时碰撞的一般接触力模型

在实际工程中，零压痕或分离后表面剩余变形的碰撞引起了广泛的关注。本文在连续模型的典型公式的基础上，提出了一种能够有效模拟这两种碰撞的通用接触力模型。通过引入等效速度，可以建立系统的近似动力学方程。基于能量等效原理，通过近似动力学方程和系统动力学方程，推导出关键参数迟滞阻尼系数的基本公式。基于碰撞前后恢复系数的一致性，通过对基本公式的修正，得到了一般的接触力模型。通过对相应类型碰撞的仿真结果与实验结果的比较，验证了该模型的有效性。与现有模型相比，该模型不仅能够以较高的精度模拟具有剩余表面变形的碰撞，而且能够更好地描述零分离压痕的碰撞。一般接触力模型有助于多体系统的动力学分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Archive of Applied Mechanics 物理-力学

CiteScore

4.40

自引率

10.70%

发文量

234

审稿时长

4-8 weeks

期刊介绍： Archive of Applied Mechanics serves as a platform to communicate original research of scholarly value in all branches of theoretical and applied mechanics, i.e., in solid and fluid mechanics, dynamics and vibrations. It focuses on continuum mechanics in general, structural mechanics, biomechanics, micro- and nano-mechanics as well as hydrodynamics. In particular, the following topics are emphasised: thermodynamics of materials, material modeling, multi-physics, mechanical properties of materials, homogenisation, phase transitions, fracture and damage mechanics, vibration, wave propagation experimental mechanics as well as machine learning techniques in the context of applied mechanics.