高耸烟囱风致振动的TPIMS减振数值分析  

Numerical analysis of TPIMS for reducing wind-induced vibration of high-rise chimney

作　　者：杨涵 刘仰昭 戴靠山 丁志斌 尹业先 YANG Han;LIU Yangzhao;DAI Kaoshan;DING Zhibin;YIN Yexian(Department of Civil Engineering,Sichuan University,Chengdu 610065,China;MOE Key Laboratory of Deep Underground Science and Engineering,Chengdu 610065,China;Failure Mechanics&Engineering Disaster Prevention and Mitigation,Key Laboratory of Sichuan Province,Chengdu 610065,China;SEPCOIII Electric Power Construction Co.,Ltd.,Qingdao 266100,China)

机构地区：[1]四川大学土木工程系,成都610065 [2]深地科学与工程教育部重点实验室,成都610065 [3]破坏力学与防灾减灾四川省重点实验室,成都610065 [4]山东电力建设第三工程公司,青岛266100

出　　处：《振动与冲击》2022年第9期290-298,共9页Journal of Vibration and Shock

基　　金：国家自然科学基金(51878426,52108463);四川省科技厅应用基础研究项目(2020YJ0078);成都市科技项目(2019-GH02-00081-HZ);山东电力建设第三工程公司科研项目(20GH10401)。

摘　　要：以某高耸烟囱为工程背景,提出了一种预测三维烟囱涡振响应的新方法。通过该方法可有效避免复杂的公式推导与数值计算;经连续随机离散流技术(consistent discrete random inflow generation,CDRFG)模拟紊流风场,建立两种减振系统的有限元模型,计算对比惯容减振系统(tuned parallel inerter mass system,TPIMS)与调谐质量阻尼器(tuned mass damper,TMD)的风致振动减振效率。结果表明:新的预测方法能较准确地预测三维烟囱的涡振响应;基于相同质量比,惯容减振系统相比TMD有更高的减振效率,但其存在质点行程过大的问题,需要在具体工程设计中加以关注。Here,taking a certain high-rise chimney as the engineering background,a new method to predict vortex-induced vibration response of a 3 D chimney was proposed.With this method,complex formula derivation and numerical calculation were effectively avoided.A turbulent wind field was simulated with the consistent discrete random flow generation(CDRFG)technique,finite element models of two vibration reduction systems were established,and wind-induced vibration reduction efficiencies of tuned parallel inerter mass system(TPIMS)and tuned mass damper(TMD)were calculated and compared.The results showed that the proposed prediction method can more accurately predict vortex-induced vibration response of 3 D chimney;based on the same mass ratio,TPIMS has higher vibration reduction efficiency than TMD does,but it has the problem of excessive mass point displacement needing to be paid attention to in the specific engineering design.

关 键 词：高耸结构 振动控制 调谐质量阻尼器(TMD) 惯容减振系统 抖振 涡激共振 

分 类 号：TU312.1[建筑科学—结构工程] TU352.1