为一种二绞链的板的活跃颤动控制在这份报纸被开发。为与分布式的压电的传感器和致动器综合的依赖的板的一个有限元素模型被导出,包括弯曲和颤动的扭力的模式。在这个模型,绞链作为常规板元素被简化便于操作。为弯曲和扭力的颤动的州的空间代表被获得。基于弯曲和扭力的运动的二个低顺序的模型,二个 H 柔韧的控制器为压制分别地弯曲和扭力的模式的颤动被设计。模拟结果显示设计 H 控制器的有效性和可行性。没有影响高频率模式,低顺序的模式的颤动大小能被减少。
Active vibration control for a kind of two-hinged plate is developed in this paper. A finite element model for the hinged plate integrated with distributed piezoelectric sensors and actuators is derived, including bending and torsional modes of vibration. In this model, the hinges are simplified as regular plate elements to facilitate operation. The state space representations for bending and torsional vibrations are obtained. Based on two low-order models of the bending and torsional motion, two H∞ robust controllers are designed for suppressing the vibrations of the bending and torsional modes, respectively. The simulation results indicate the effectiveness and feasibility of the designed H~~ controllers. The vibration magnitudes of the low-order modes can be reduced without affecting the high frequency modes.