分布传感／执行器智能梁的振动控制及APDL仿真

研究了分布传感／执行器智能梁模型的振动控制问题。传感器和执行器选用了压电薄膜PVDF，控制律根据直接位移反馈、负速度反馈和Lyapunov速度反馈设计。研究表明，在本文讨论的悬壁梁模型中，分布执行器控制的效果等效于自由端施加变化的控制力矩，而且速度型反馈明显优于位移型反馈。另外，在仿真的过程中，利用了ANSYS的参数设计语言APDL（ansys parametric design language），为复杂三维结构的控制仿真开辟了一条可行的途径。

Vibration Control of the Smart Beam with Distributed Sensor/Actuator and APDL Simulation

This paper researched the vibration control of the smart beam with distributed sensor/actuator of the piezoelectric film PVDF.Three control algorithm,namely the displacement feedback,the negative velocity feedback and the Lyapunov velocity feedback,are carried out.The results show that the control effect is the same as that of applying the control moment at the free end of the cantilever beam,and the velocity feedback is much more effective than the displacement feedback.Moreover,the APDL(ansys parametric design language)is employed to implement the simulation.The mehod broke a new path for the simulation and control of complex structures.