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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的问题，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。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，并进行了仿真和实验研究，证明了理论分析的正确性。
This paper discusses the problem of premature linearization when using the traditional dynamic modeling method to establish the dynamic equations of the spacecraft flexible attachment, and reveals the shortcomings of this method in establishing the dynamic equations that lose some important rigid-flexible coupling terms. The Kane method was used to establish the general formula for the kinetic equation and the term lost by using the traditional kinetic method to establish the kinetic equation was determined. The method of modeling the dynamics of spacecraft flexible attachments based on the small deformation of components is discussed. The simulation and experimental research are also carried out to prove the correctness of the theoretical analysis.