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挠性结构是一种典型的空间结构形式，这种结构有模态频率低、模态密集和阻尼小的特点，在外界扰动下易引起振动，对航天器的定位精度和精密仪器的正常工作造成影响，但传统的被动振动控制方法难以奏效。基于压电元件的振动主动控制是最有潜力的一种振动抑制方法。本文模拟空间结构制作一挠性梁，通过实验分析和压电传感器／驱动器布置位置和数量的优化设计，采用独立模态方法对梁的振动进行控制，取得了良好的抑振效果。
Flexible structure is a typical form of space structure, this structure has a low modal frequency, mode-intensive and small damping characteristics of the external disturbances easily lead to vibration on the spacecraft positioning accuracy and precision instruments work However, the traditional passive vibration control method can not work well. Vibration control based on piezoelectric elements is the most potential vibration suppression method. In this paper, a flexible beam was fabricated by simulating the space structure. Through the experimental analysis and the optimal design of the position and number of the piezoelectric sensor / actuator arrangement, an independent modal method was used to control the vibration of the beam and a good vibration suppression effect was achieved.