Discrete time transfer matrix method for dynamics of multibody system with flexible beams moving in space

作     者：Xiao-Ting Rui Edwin Kreuzer Bao Rong Bin He 

作者机构：Institute of Launch DynamicsNanjing University of Science&Technology210094 NanjingChina Mechanics and Ocean Enginnering of Hamburg University of TechnologyHamburgGermany 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2012年第28卷第2期

页      面：490-504页

核心收录：

学科分类：08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 0813[工学-建筑学] 0814[工学-土木工程] 080101[工学-一般力学与力学基础] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the Natural Science Foundation of China Government (10902051) the Natural Science Foundation of Jiangsu Province (BK2008046) the German Science Foundation 

主　　题：Multi-rigid-flexible-body system Spatial mo- tion Dynamics Discrete time transfer matrix method 

摘      要：In this paper, by defining new state vectors and developing new transfer matrices of various elements mov- ing in space, the discrete time transfer matrix method of multi-rigid-flexible-body system is expanded to study the dynamics of multibody system with flexible beams moving in space. Formulations and numerical example of a rigid- flexible-body three pendulums system moving in space are given to validate the method. Using the new method to study the dynamics of multi-rigid-flexible-body system mov- ing in space, the global dynamics equations of system are not needed, the orders of involved matrices of the system are very low and the computational speed is high, irrespec- tive of the size of the system. The new method is simple, straightforward, practical, and provides a powerful tool for multi-rigid-flexible-body system dynamics.