基于满意度的液体质量双调谐减振器参数优化及应用  

Parametric optimization and application of MTLMD system based on improved weighted satisfaction degree theory

作　　者：王波[1,2,3] 汪正兴[2,3] 陈开利[2,3] 郭翠翠[2,3] 

机构地区：[1]武汉大学土木工程博士后流动站,湖北武汉430072 [2]中铁大桥局集团武汉桥梁科学研究院有限公司,湖北武汉430034 [3]桥梁结构安全与健康湖北省重点实验室,湖北武汉430034

出　　处：《地震工程与工程振动》2011年第6期186-190,共5页Earthquake Engineering and Engineering Dynamics

基　　金：江西省交通运输厅科技项目(2010C00005)

摘　　要：为探讨多重液体质量双调谐阻尼器(MTLMD)参数优化算法,引入满意度理论,以满意度水平为目标函数,建立了主结构与MTLMD系统动力放大系数的三参量改进型加权满意度方程。对南京大胜关长江大桥吊杆结构MTLMD系统最优阻尼比及频率比等参数进行优化分析,得出了满意度水平、信心指数及最优参数之间的相互关系。研究结果表明:以满意度为指标的优化算法实质为将优化目标转化为最小满意度水平的最大化问题,其结果优于传统的多目标优化算法结果,该方法使得MTLMD系统优化目标明确,优化结果更加智能化,计算结果可应用于工程实际。To investigate the parametric optimization algorithm of multiple tuned liquid mass damper,the three parameters improved weighted satisfaction degree equation with dynamic magnification factor of main structure and MTLMD system is established by using satisfaction degree objective function.The optimal damping ratio and frequncy ratio of MTLMD system with the suspenders on Dashengguan Bridge across the Yangtze River in Nanjing are analyzed,and the relationship with the satisfaction degree,confidence index and optimized parameters are obtained.The research indicates：the optimization algorithm with satisfaction degree index is to transmit the optimization objective to the realization of the maximum value of the minimal satisfaction degree essentially,the results obtained by using this algorithm is better than that with traditional optimization method,and this new algorithm makes MTLMD system optimization objective much more clear and intelligent.The results can be applied to engineering practice.

关 键 词：满意度 TLMD 动力放大系数 参数优化 

分 类 号：P315.91[天文地球—地震学] TU311[天文地球—固体地球物理学]