结构的行波控制  

Traveling wave control for structure

作　　者：谭平[1] 

机构地区：[1]东南大学火电机组振动国家工程研究中心,南京210096

出　　处：《吉林大学学报（工学版）》2006年第3期417-421,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：'973'国家重点基础研究发展规划项目(G19998020300)

摘　　要：将结构的扰动视为行波的传播过程,通过主动控制波的传播路径,实现对结构扰动的控制。通过行波控制器的作用,扰动能量在上游被抑制或被吸收掉,使下游的能量达到最小。从理论上探讨了基于行波模型的结构梁响应控制方法,在梁及压电陶瓷作动器处采用行波理论模型,导出了上游测量、下游点施加控制的行波主动控制律及相应的具有超越函数形式的控制补偿器表达式。仿真结果表明行波控制能取得相当好的控制效果。Regarding the structure disturbance as the propagation of a traveling wave, the control of the structure disturbance may be realized by the active control of the propagation paths of the traveling wave.When the disturbance energy upstream is restrained or absorbed by a traveling wave controller, the energy downstream may be minimized. The structure beam response control method based on the traveling wave model was discussed theoretically. The theoretical traveling wave model was applied to a long thin beam with piezocrystal actuators and the traveling wave active control law for the condition of making measurement upstream and performing control downstream was derived and the control compensator formula of the flexural wave-guide in the form of transcendental function was deduced. The simulation results show that the suggested traveling wave control is quite effective.

关 键 词：电气工程 行波 波导 主动控制器 结构 扰动 

分 类 号：TM153[电气工程—电工理论与新技术]