柔性梁分布式外部载荷识别方法  

Identification of distributed external load on flexible beam

作　　者：刘涛[1] 吴炜[2] 史济涛[2] 蔡国平[1] 

机构地区：[1]上海交通大学工程力学系,海洋工程国家重点实验室,上海200240 [2]中国空空导弹研究院,河南洛阳471009

出　　处：《振动与冲击》2014年第16期14-17,共4页Journal of Vibration and Shock

基　　金：国家自然科学基金重点项目(11132001);面上项目(11272202,11072146,11002087);航空科学基金(20120157002);博士点专项基金(20110073110008);上海市教委科研创新重点项目(14ZZ021)

摘　　要：以柔性梁为对象,给出分布式外部载荷识别方法。该方法将振动控制与载荷观测相结合,控制律用于梁振动抑制,扰动力观测器用于外部载荷实时观测。仿真结果表明,变结构控制律能有效抑制梁的弹性振动,扰动力观测器能有效对外部载荷进行识别。An identification method of distributed external load on a flexible cantilever beam was presented. The method is based on a variable structure controller and an external load observer,where the controller is used for the suppression of the beam vibration and the observer is used to observe the external load. The simulation results indicate that the controller is remarkable in suppressing the beam vibration,and the observer is effective in identifying the external load in real-time.

关 键 词：柔性梁 载荷识别 变结构控制 扰动力观测器 

分 类 号：O326[理学—一般力学与力学基础] TB123[理学—力学]