期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Numerical and experimental studies on impact dynamics of a planar flexible multibody system 被引量:8
1
作者 Fu-Xiang Dong Jia-Zhen Hong Kun Zhu Zheng-Yue Yu 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2010年第4期635-642,共8页
In this paper a computational methodology on impact dynamics of the flexible multibody system is presented. First, the floating frame of reference approach and nodal coordinates on the basis of finite element formulat... In this paper a computational methodology on impact dynamics of the flexible multibody system is presented. First, the floating frame of reference approach and nodal coordinates on the basis of finite element formulation are used to describe the kinematics of planar deformable bodies. According to the kinematic description of contact conditions, the contact constraint equations of planar flexible bodies are derived. Based on the varying topology technique the impact dynamic equations for a planar multibody system are established. Then the initial conditions of the equations in each contact stage are determined according to the discontinuity theory in continuum mechanics. The experiments between the aluminum rods are performed to check the correctness of the proposed method. Through the comparison between the numerical and experimental results the proposed method is validated. Experimental results also show that the impulse momentum method cannot accurately predict the complex impact dynamic phenomena and the continuous model may lead to a serious error when used to simulate the impact problems with significant wave propagation effects. 展开更多
关键词 Flexible multibody system Impact dynamics Appending constraint method (ACM) Impact experiments
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部