基于非线性弹簧阻尼模型的球体碰撞模拟  

Spherical collision simulation based on nonlinear spring damping model

作　　者：李江[1] 李春[2] LI Jiang;LI Chun(Management Department,South Guizhou Vocational and Technical College for Nationalities,Duyun 558022,China;School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]贵州省黔南民族职业技术学院管理系,贵州都匀558022 [2]上海理工大学能源与动力工程学院,上海200093

出　　处：《黑龙江科学》2019年第10期10-13,共4页Heilongjiang Science

基　　金：贵州省高校人文社科项目(2018ZC097)

摘　　要：基于动态接触模型对碰撞接触过程进行建模和数值计算,分析了模型各参数的物理意义,并与经典力学接触模型进行对比,通过恢复系数与阻尼系数的关系,将两类模型联系起来。使用Roung-Kutta方法求解动力学方程,并将模型结果与ABAQUS显式动力学模拟结果及实验结果进行比较。对比结果表明,非线性阻尼模型能够较为准确地反映碰撞接触过程。研究工作验证了模型及各参数选取的合理性,比较了各模型特点,为接触过程模型选取提供了参考。Dynamic contact models are applied to simulate the process by numerical computation.Model parameters are analyzed and models are compared with classical mechanics contact model.Two kinds of models are connected by the relationship between coefficient of restitution and damping coefficient.It applies Roung-Kutta method to solve dynamic equations and compare the results with ABAQUS explicit dynamics simulation and experiments.It concludes that nonlinear spring damper model could simulate the contact process with relatively high accuracy.The method and parameters are verified to be correct,which offers reference for choosing contact models.

关 键 词：非线性弹簧 阻尼 接触模型 球体碰撞 动力学仿真 

分 类 号：O313.4[理学—一般力学与力学基础]