摘要
论述了采用传统动力学建模方法建立空间飞行器柔性附件动力学方程时过早线性化问题；揭示了这种方法建立动力学方程的缺陷，即失去了一些重要的刚柔耦合项．本文采用Ｋａｎｅ方法建立动力学方程的一般公式，并确定了采用传统动力学方法建立动力学方程所失去的项．进一步探讨了基于构件小变形的空间飞行器柔性附件动力学的建模方法．
The problem of premature linearization in modeling dynamics of a spacecraft fiexible appendage is discussed dy using the conventional modeling method,and the method defects are demonstrated that some coupling terms between large overallmotion and small deformation are lost.A general formulation is developed by using Kane's method,and the missed terms are detemined.Furthermore,dynamics modeling methods of flexible appendages for spacecratts baced on small deformations are analyzed.
出处
《河北工业大学学报》
CAS
1998年第3期34-41,共8页
Journal of Hebei University of Technology
基金
中国航天总公司博士后科学基金
河北省教委博士启动基金
国家航天863高技术项目基金
关键词
空间飞行器
柔性附件
动力学建模
过早线性化
Spacecraft flexible appentage,Dynamics Coupling between large overall motions and small deformations Premature linearization
