一类约束阻尼结构动力学建模及其应用

结构系统的劝控制是改善航天器动态特性的重要途径，本文分析了利用约束阻尼结构进行了振动抑制的基本方法，讨论了约束阻尼结构的动力学特性和有限元模型，作为应用实例，本文将约束阻尼结构应用于某大型航天结构，对比附经前后结构的试验莫大记结果，作为一种被动振动控制方法，对航天结构抑制是有效和可行的。

Modeling and Application for a Kind of Constrained Damping Structure

Structure vibration control is of great importance for the melioration of spacecraft dynamic property.This paper deals with a kind of constrained damping structure,the principle of vibration suppress is introduced herein based on theoretic analysis,finite element and experiment models of the structure are presented.As example,this constrained damping structure is applied to a rocket cabin structure,some of modal parameters and FRF curves of designed points are worded out.With the results of experiments,as an impassive damping method,the constrained damping structure is proved to be feasible and effective for vibration suppress of large space structure.