对柔性悬臂梁的时滞主动控制进行实验研究。控制方法采用独立模态空间方法,控制律采用离散最优控制方法进行设计,作动器采用压电形式。通过数值仿真和实验两方面验证了时滞控制律的有效性。结果显示,文中的时滞控制律能够较好地抑制柔性梁的弹性振动,并且可以取得和无时滞控制设计几乎相同的控制效果。这种现象表明,控制系统中的时滞并不总是'坏'因素,它有可以利用的一面。
In this paper,active control of flexible cantilever beam with time delay is experimentally studied.Independent modal space control method is adopted,where modal controller is designed using the discrete optimal control method and piezoelectric patch is used as actuator.Numerical and experimental results both show that the time-delay controller presented is feasible and effective in vibration control of dynamic systems with time delay,and may achieve almost the same control effectiveness as the optimal contr...