结构扰动的行波主动控制  

Active Control of Traveling Wave in Structures

作　　者：谭平[1] 孙晔[2] 程懋华[1] 高亹[1] 

机构地区：[1]东南大学振动中心,南京210096 [2]江苏常熟发电有限公司,常熟215536

出　　处：《振动．测试与诊断》2004年第2期128-130,共3页Journal of Vibration,Measurement & Diagnosis

基　　金：国家重点基础研究发展规划项目 (编号 :G1 99980 2 0 30 0 )

摘　　要：将结构的扰动视为行波的传播 ,通过主动控制波的传播路径来实现对扰动的控制 ,通过主动控制器的作用 ,扰动能量在上游被抑制或吸收掉 ,下游的能量达到最小 ,按照行波模型导出了两点测量、两点施加控制的控制律 。The response of a spacecraft structure to a dynamic disturbance may be viewed as a traveling wave propagating in the structure.The response can be suppressed by an active control of the propagating path of the wave.The disturbance energy near its source at the structure can be suppressed or absorbed by an active controller to make the energy at downstream of the structure minimized.Based on a traveling model,and active control law with two point measurement and two point excitation and its corresponding compensator formula of flexural waveguide are derived.Simulated results indicate that the traveling wave controller has a marked effect on the suppression of the response.

关 键 词：梁 主动控制 行波 补偿器 

分 类 号：TM365[电气工程—电机] TB123[理学—工程力学]