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Discrete time transfer matrix method for dynamics of multibody system with flexible beams moving in space 被引量:4

Discrete time transfer matrix method for dynamics of multibody system with flexible beams moving in space
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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. 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.
出处 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2012年第2期490-504,共15页 力学学报(英文版)
基金 supported by the Natural Science Foundation of China Government (10902051) the Natural Science Foundation of Jiangsu Province (BK2008046) the German Science Foundation
关键词 Multi-rigid-flexible-body system Spatial mo- tion DYNAMICS Discrete time transfer matrix method Multi-rigid-flexible-body system Spatial mo- tion Dynamics Discrete time transfer matrix method
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