摘要
惯质是一种新型两节点单元,可产生远大于其物理质量的表观质量。将惯质单元与调谐质量阻尼器(TMD)相组合,系统研究了旋转惯质双调谐质量阻尼器(RIDTMD)的减振性能。首先,采用单自由度结构体系,对RIDTMD进行全参数H∞与H2优化,得到RIDTMD各结构参数最优值;然后,以某光热电站吸热塔为研究对象,采用最优的RIDTMD结构参数,研究了RIDTMD对该塔横风向与顺风向风致振动的控制效果,并与传统的TMD减振效果进行比较。研究结果表明:调谐质量相同的情况下,RIDTMD系统的减振效果比TMD更好;减振效果相同的情况下,RIDTMD的调谐质量比TMD的调谐质量最大可减小40%。
Inerter is a new type of two-node element,which can produce apparent mass far larger than its physical mass.In this paper,vibration suppression of rotational inertia double tuned mass damper(RIDTMD),combing inerter with tuned mass damper(TMD),is systematically investigated.Firstly,considering a single degree of freedom dynamical system(primary structure),all structural parameters of RIDTMD system are optimized with H∞and H2 methods.Then,compared with traditional TMD,the control effect of RIDTMD with optimized structural parameters on wind-induced vibration of a solar tower in cross-wind direction and along-wind direction is studied.The results show that vibration suppression of RIDTMD system is better than that of TMD with same tuning mass.The tuning mass of RIDTMD can be reduced by up to 40%compared with that of TMD with same vibration suppression.
作者
李亚峰
李寿英
陈政清
LI Ya-feng;LI Shou-ying;CHEN Zheng-qing(Key Laboratory for Wind and Bridge Engineering of Hunan Province,College of Civil Engineering,Hunan University,Changsha 410082,China)
出处
《振动工程学报》
EI
CSCD
北大核心
2020年第2期295-303,共9页
Journal of Vibration Engineering
基金
国家重点研发计划项目(2017YFC0703600,2017YFC0703604)。
关键词
风致振动
振动控制
调谐质量阻尼器
惯质
wind-induced vibration
vibration suppression
tuned mass damper
inerter
