智能桁架结构振动阻尼控制研究

Vibration Damping Control of Intelligent Truss Structure

研究利用压电主动构件实现智能桁架结构阻尼控制的技术．控制方法采用局部积分力反馈，将压电主动构件的弹性内力经积分器反馈，以此获得施加于压电主动构件上的驱动电压，达到智能桁架结构闭环阻尼控制的目的．这种控制方法具有良好的稳定性和鲁棒性．通过一个空间桁架结构的控制实验，结果表明，该控制方法是有效的，可获得较大的结构模态阻尼．

The vibration of intelligent truss structure could be controlled using a piezoelectric active member with force feedback that is correlated to the voltage. Experiments are conducted on a truss structure to show that the scheme is very effective in damping vibration of the structure.