基于冲击阻尼器的结构振动半主动控制研究

Study on the structural vibration semi-active control based on impact damper

对三自由度振动系统，应用冲击阻尼器，引入阻尼器冲程控制参量Ｐｄ／ｏｐｔ，给出实现系统振动半主动控制的方法。数值分析表明，半主动控制系统对各阶模态共振峰均有明显的抑制效果。系统控制反馈参量易于检测，作动器结构易于实现。基于冲击阻尼器的振动半主动控制策略是一种实用的振动控制方案。

Based on an impact damper on a three-degree of freedom structure, amethod of semiactive vibration control is investigated. Both the controlledmodel of an impact damper on structure and control strategy are discussed.Numerical analyses indicating that this semiactive vibration control systemhas a good damping effect. The system frequency response is studied, andcompared with that of uncontrolled system.