基于改进CHC遗传算法的结构损伤诊断研究  

Structural Damage Diagnosis Based on Improved CHC Algorithm

作　　者：黄维平[1] 王晓燕[1] 

机构地区：[1]中国海洋大学海岸与海洋工程研究所,青岛266071

出　　处：《振动．测试与诊断》2007年第3期232-235,共4页Journal of Vibration,Measurement & Diagnosis

基　　金：教育部博士点基金资助项目(编号:20050423002)

摘　　要：提出了一种改进的CHC遗传算法,用频率误差和振型误差函数构建目标函数和适应度函数,该方法继承了普通遗传算法和CHC算法的优点,提高了算法的收敛速度。数值算例表明,用改进的CHC遗传算法进行结构损伤诊断时,单构件损伤比SGA算法的计算时间缩短60%,多构件损伤可缩短80%。An improved CHC genetic algorithm has been presented in the paper.The objective function and fitness function are constructed with frequency error one and mode shape error one.It takes advantages of simple genetic algorithm(SGA) and CHC algorithm and converges fast.The numerical example shows that the calculating-time of the improved algorithm decreases 60% for one damaged element,and 80% for two damaged elements,compared with the SGA.

关 键 词：结构参数识别 结构损伤诊断 遗传算法 CHC算法 

分 类 号：TM55[电气工程—电器] TU317[建筑科学—结构工程]