【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．更多还原

【Abstract】 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.更多还原