摘要
采用结构模态振型来定义结构的形状优化参数模型,以一组结构模态振型的叠加来重构结构表面形状,以结构振动响应为目标函数,采用遗传算法优化配置各阶模态振型的参与因子来优化结构形状,以达到降低结构振动响应水平的目的.以几何平板、半圆柱曲面为研究对象,计算结果表明该方法可以有效降低结构振动响应水平.
The optimization parameter model is defined by using the mode shape,and the targeted structure surface is restructured with a series of mode shape superposition.By choosing the vibration response as design function,the mode shape participation factor is distributed by using of genetic algorithm to get the optimized surface shape with smallest vibration characteristics.Some examples are demonstrated to verify the efficiency and accuracy of the method to reduce vibration response.
出处
《武汉理工大学学报（交通科学与工程版）》
2014年第5期1079-1082,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国家自然科学基金项目(批准号:51079118
51279148)
武汉理工大学自主创新研究基金项目(批准号:135105006)资助
关键词
模态振型叠加
形状优化
遗传算法
振动响应
mode shape superposition
shape optimization
genetic algorithm
vibration response
