フレキシブルシステムのモデリング

概要

論文の詳細を見る
This paper is intended to offer bases for the simulations of a flexible system ; the differential equation model for a simple flexible structure is derived and discretized by means of two modal analysis methods : unconstrained mode and constrained mode methods. Secondly, a short survey is given for several numerical programs to be employed for the simulation of complex multibody spacecraft motions and the finite element method which is used extensively for the simulation is explained. It is pointed out that false instability occurs in such programs because of neglect of the axial movement in the flexible beam motion. Finally, improvement of the program to avoid such instability is proposed and effect of taking account of the axial movement is demonstrated by a numerical example.
日本シミュレーション学会の論文
1989-06-15