摘要
柔性结构是一种典型的空间结构 ,在外扰下易引起振动 ,影响飞行器的定位精度和精密仪器的正常工作 .因此必须对这类结构的振动进行控制 ,本文针对柔性结构的大挠度、非线性、模态频率低且密集、阻尼小的特点 ,提出一种基于H∞ 控制的独立模态空间控制法 (independentmodalspacecontrol,IMSC)来研究其主动控制 ,并对柔性梁及板进行了控制的数值仿真 。
Flexible structure is a typical space structure, which is easily vibrated when disturbed, and which often has an effect on the location precision of the aircraft and the normal functioning of the precision equipment. In this paper, the independent modal space control(IMSC) method based on H ∞ control is proposed is view of the large displacement, nonlinearity, low and dense mode frequency, light damping of flexible structures. Simulations on flexible cantilever beams and plates have been conducted with favorable results.
