摘要
建立了可控约束阻尼层悬臂梁的动力学模型，分析了模型中的不确定性．针对模态溢出问题，研究了可控约束阻尼层梁结构的Ｈ∞鲁棒控制设计，并进行了数值仿真与控制实验研究．结果表明，与位移比例反馈控制相比，Ｈ∞控制能有效抑制可控约束阻尼层梁结构的模态振动，且对被截断模态不产生控制溢出，具有良好的鲁棒稳定性．
The modelling problem for a cantilever beam with a controllable constrained damping layer is discussed in detail. Some uncertainties in the modelling are analyzed. The H ∞ robust control of the beam vibration is investigated by numerical simulation and experiments. The investigation shows that, compared with the displacement proportional feedback control, the H ∞ control can suppress the modal vibration of the beam more effectively without causing the spillover of the truncated modes, and has better robust stability.
出处
《实验力学》
CSCD
北大核心
1999年第2期157-164,共8页
Journal of Experimental Mechanics
基金
国家自然科学基金
关键词
振动控制
H∞控制
可控约束阻尼层
vibration control, H ∞ control, controllable constrained damping layer, modal spillover
