Discrete Time Transfer Matrix Method for Dynamic Modeling of Complex Spacecraft With Flexible Appendages

Abstract

Efficient, precise dynamic analysis for a complex spacecraft has become a research focus in the field of spacecraft dynamics. In this paper, by combining discrete time transfer matrix method of multibody system and finite element method, the transfer equations and transfer matrices of typical elements of spacecrafts are developed, and a high-efficient dynamic modeling method is developed for high-speed computation of spacecraft dynamics. Compared with ordinary dynamic methods, the proposed method does not need the global dynamic equations of system and has the low order of system matrix, high computational efficiency. This method has more advantages for dynamic modeling and real-time control of complex spacecrafts. Formulations of the proposed method as well as a numerical example of a spacecraft with a flexible solar panel are given to validate the method.

Virtual design software for mechanical system dynamics using transfer matrix method of multibody system and its application

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Research on the rigid-flexible multibody dynamics of concrete placing boom

“…All transfer matrix U α (α is element's ID) in this article can be found in Refs. [16][17][18][19][20][21][22][23]. The transfer equations of each branch in substructure A are…”

“…Li developed a computing method to improve the accuracy [21]. Rong performed the real-time simulation based on this method [22] and applied it to the study of spatial structures [23].…”

Analysis of the response of a reinforced concrete shear wall structure during earthquakes using the transfer matrix method of multibody systems

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