不同形式的调谐质量阻尼器在弧形闸门地震控制中的对比  

Comparison of optimized TMD in seismic response control of arch gates

作　　者：胡友一 王珏[1] 靳双明 许诺 HU Youyi;WANG Jue;JIN Shuangming;XU Nuo(College of Mechanical and Electrical Engineering,Hohai University,Changzhou 213022,China)

机构地区：[1]河海大学机电工程学院,江苏常州213022

出　　处：《水资源与水工程学报》2025年第1期146-153,173,共9页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金项目(52178474);江苏省自然科学基金项目(BK20221233)。

摘　　要：鉴于地震激励对弧形闸门可能造成的振动破坏问题,通过振动优化设计,对比分析了3种调谐质量阻尼器(TMD)结构,即单个TMD(S-TMD)、多个串联TMD(M-TMD-Ⅰ)和多个并联TMD(M-TMD-Ⅱ)在弧形闸门地震响应控制中的减振效果。建立了与实际弧形闸门等效的力学简化模型,并基于达朗贝尔原理建立了含有3种减振结构的弧形闸门动力学控制方程;利用遗传算法以动力放大系数为优化目标,优化了各个TMD的质量比、频率比、阻尼比,以实现与弧形闸门振动特性的最佳匹配;利用ANSYS软件对加装优化减振结构的弧形闸门进行了动力时程响应分析,模拟了不同地震波作用下闸门的振动响应。研究结果表明:3种减振结构均能有效降低弧形闸门在地震作用下的动力响应,尤其是M-TMD-I结构,在位移和加速度的减振方面展现出最优的减振效果。研究可为弧形闸门的振动控制设计提供理论依据与实践参考。In view of the possible vibration damage caused by seismic excitation to arc gates,we compared the vibration reduction effect of three tuned mass damper(TMD)structures on the seismic response control of the arc gate in the vibration optimization design.The TMD structures are single TMD(S-TMD),multiple series TMD(M-TMD-Ⅰ)and multiple parallel TMD(M-TMD-Ⅱ).Firstly,a simplified mechanical model equivalent to the actual arc gate was established,and the dynamic governing equations for arc gates with three kinds of vibration reduction structures were constructed based on D’Alembert’s principle.To optimize the dynamic amplification coefficient,the mass ratio,frequency ratio and damping ratio of each TMD were optimized by genetic algorithm,so as to achieve the best match with the vibration characteristics of the arc gate.Then,ANSYS was used to analyze the dynamic time-history response of the arc gates installed with the optimized vibration damping structures,and to simulate the vibration response of the gates under different seismic waves.The results show that the three TMD structures can effectively reduce the dynamic response of the arc gate under earthquakes,especially the M-TMD-I structure,which has the best damping performance in terms of displacement and acceleration.This study can provide a theoretical basis and practical reference for the vibration control design of arc gates.

关 键 词：弧形闸门 调谐质量阻尼器 减振优化 地震激励 动力响应 振动控制 

分 类 号：TV663[水利工程—水利水电工程] TV312