期刊文献+

Partition method for impact dynamics of flexible multibody systems based on contact constraint 被引量:6

Partition method for impact dynamics of flexible multibody systems based on contact constraint
下载PDF
导出
摘要 The impact dynamics of a flexible multibody system is investigated. By using a partition method, the system is divided into two parts, the local impact region and the region away from the impact. The two parts are connected by specific boundary conditions, and the system after partition is equivalent to the original system. According to the rigid-flexible coupling dynamic theory of multibody system, system's rigid-flexible coupling dynamic equations without impact are derived. A local impulse method for establishing the initial impact conditions is proposed. It satisfies the compatibility con- ditions for contact constraints and the actual physical situation of the impact process of flexible bodies. Based on the contact constraint method, system's impact dynamic equa- tions are derived in a differential-algebraic form. The contact/separation criterion and the algorithm are given. An impact dynamic simulation is given. The results show that system's dynamic behaviors including the energy, the deformations, the displacements, and the impact force during the impact process change dramatically. The impact makes great effects on the global dynamics of the system during and after impact. The impact dynamics of a flexible multibody system is investigated. By using a partition method, the system is divided into two parts, the local impact region and the region away from the impact. The two parts are connected by specific boundary conditions, and the system after partition is equivalent to the original system. According to the rigid-flexible coupling dynamic theory of multibody system, system's rigid-flexible coupling dynamic equations without impact are derived. A local impulse method for establishing the initial impact conditions is proposed. It satisfies the compatibility con- ditions for contact constraints and the actual physical situation of the impact process of flexible bodies. Based on the contact constraint method, system's impact dynamic equa- tions are derived in a differential-algebraic form. The contact/separation criterion and the algorithm are given. An impact dynamic simulation is given. The results show that system's dynamic behaviors including the energy, the deformations, the displacements, and the impact force during the impact process change dramatically. The impact makes great effects on the global dynamics of the system during and after impact.
出处 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2013年第11期1393-1404,共12页 应用数学和力学(英文版)
基金 supported by the National Natural Science Foundation of China(Nos.11132007,11272155,and 10772085) the Fundamental Research Funds for the Central Universities(No.30920130112009) the 333 Project of Jiangsu Province of China(No.BRA2011172)
关键词 flexible multibody system impact dynamics partition method impulse-momentum method contact constraint flexible multibody system, impact dynamics, partition method, impulse-momentum method, contact constraint
  • 相关文献

参考文献4

二级参考文献51

共引文献36

同被引文献31

引证文献6

二级引证文献6

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部