组合算法用于空间结构振动抑制的阻尼器优化布置  

MIXED ALGORITHM FOR PLACEMENT AND QUANTITY OPTIMIZTION OF DAMPERS IN VIBRATION REDUCTION OF SPATIAL RETICULATED STRUCTURES

作　　者：帅虹[1] 黄真[1] 周岱[1] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院土木工程系,上海200030

出　　处：《振动与冲击》2008年第3期17-21,共5页Journal of Vibration and Shock

基　　金：国家自然科学基金(No.:10572091);高等学校博士学科点专项科研基金(项目编号:20040248002)资助项目

摘　　要：提出适宜的适应度函数,将遗传算法的种群思想引入模拟退火算法中,构造出遗传算法与模拟退火算法的组合算法,用于空间结构振动抑制的阻尼器位置和数量寻优。通过空间网壳在不同冲击荷载作用下的算例分析发现,若设置合适的控制参数,运用组合算法可迅速准确地找到全局最优解方案。An improved simulated annealing algorithm integreated with the idea from genetic algorithm as well as the adapting function is put forward as a mixed algorithm for optimization of damper quantity and placement in vibration reduction of spatial reticulated structures. A typical reticulated shell structure under different impact loadings is taken as an example to demonstrate the advantages and effectiveness of the mixed algorithm with proper parameters.

关 键 词：模拟退火算法 遗传算法 阻尼器 寻优 振动抑制 

分 类 号：TU352.1[建筑科学—结构工程]