Title :
Dynamic modeling and simulation of a flexible satellite
Author :
Bai, Shengjian ; Huang, Xinsheng ; Liu, Yuhao
Author_Institution :
Nat. Univ. of Defense Technol., Changsha
Abstract :
A novel dynamic equation of a flexible satellite with flexible appendages is developed based on the coupling deformation field, in which the second-order coupling term of axial displacement caused by that of transverse is included. Lagrangian principle and assumed mode method are used to derive the first-order approximate model of the multibody system. Theoretical analysis and numerical simulations show that the coupling term can have significant effect on the dynamic characteristics of the flexible system undergoing large rigid-body motion and the dynamic stiffening is accounted for.
Keywords :
approximation theory; artificial satellites; attitude control; motion control; Lagrangian principle; dynamic equation; dynamic modeling; dynamic simulation; dynamic stiffening; first-order approximate model; flexible appendages; flexible satellite; rigid-body motion; Deformable models; Equations; Finite element methods; Flexible structures; Linear approximation; Motion analysis; Nonlinear dynamical systems; Numerical simulation; Satellites; Vehicle dynamics;
Conference_Titel :
System Simulation and Scientific Computing, 2008. ICSC 2008. Asia Simulation Conference - 7th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-1786-5
Electronic_ISBN :
978-1-4244-1787-2
DOI :
10.1109/ASC-ICSC.2008.4675523
