CAJ | 학술논문

结构系统的振动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，对比附加约束阻尼前后结构的试验模态结果，作为一种被动振动控制方法，对航天结构振动抑制是有效和可行的。
결구계통적진동공제시개선항천기동태특성적중요도경。본문분석료이용약속조니결구진행진동억제적기본방법，토론료약속조니결구적동역학특성화유한원모형。작위응용실례，본문장약속조니결구응용우모대형항천결구，대비부가약속조니전후결구적시험모태결과，작위일충피동진동공제방법，대항천결구진동억제시유효화가행적。
Structure vibration control is of great importance for themelioration 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.