考虑间隙移动副碰撞影响的一种动力学分析方法  

A Method of Planar Linkage Dynamic Analysis With Slider Joint Impacting

作　　者：宋黎[1] 杨坚[1] 

机构地区：[1]湘潭大学机械工程系,湘潭411105

出　　处：《机械设计与研究》2001年第2期36-37,共2页Machine Design And Research

基　　金：湖南省教育厅资助项目

摘　　要：提出了适合于数值计算的考虑间隙移动副碰撞影响的平面连杆机构动力学分析方法。根据移动副的接触运动状态和自由运动状态 ,分别建立微分运动方程 ,利用碰撞恢复系数分析从自由状态到接触状态的转化过程 ,采用小时间步长试探法 ,从而不需要求解自由状态和接触状态所历经的时间。研究表明 ,使用该方法所得结果更加接近机构的实际动态响应 ,并且算法简单 ,便于工程应用。This paper presents the dynamic analysis algorithm of planar linkage, which considers the impacting effect of slider joint with clearance and is suitable for numerical method.According to the contact and contact-loss of slider joint, differential motion equations are set up. Using impact recolery coefficient, t he Ptocess of transforming contact-loss into contact is studied. Using the method of trying by smaller time, the used up time in contach-loss process needn't be decided. The study shows that this method is simple and suitable for engineering. And the calculated result is closer to the practical dynamic response of mechansm.\;

关 键 词：平面连杆机构 移动副 间隙 碰撞 动力学分析 

分 类 号：TH112.1[机械工程—机械设计及理论] TH113