摘要
为了克服调谐质量阻尼器(Tuned Mass Damper,TMD)质量过大的缺陷,用惯容器(Inerter)代替TMD中的质量块,形成调谐惯容阻尼器(Tuned Inerter Damper,TID).将TID附加在基础隔震结构的隔震层,对TID进行优化设计研究.以两自由度基础隔震结构体系的简化模型为研究对象,以白噪声激励下的振动响应为指标对TID进行参数研究,确定了一种以隔震层水平位移控制为约束、以最小上部结构绝对加速度为优化目标的优化问题,在两种控制准则下对TID进行优化设计,与仅附加线性粘滞阻尼器(Linear Viscous Damper,LVD)的基础隔震结构进行比较,最终发现TID对基础隔震结构的性能控制有着良好的效果,能同时降低隔震层水平位移和上部结构绝对加速度,并且效果优于LVD.
To overcome the drawback to the overlarge mass of Tuned Mass Damper(TMD),Tuned Inerter Damper(TID)has been obtained by replacing mass element of TMD with inerter.A base-isolated structure,simplified as a 2-degree-of-freedom(2DOF)system,with supplemental TID was studied by stochastic response analysis with an optimal method based on performance requirement,which considered the target displacement of isolation layer as a constraint,and acceleration of superstructure as an optimal object.The optimal designs of TID with two control criterions and the comparison with the same structure with supplemental Linear Viscous Damper(LVD),which is a unitary damper,were conducted.The analysis results indicated that the displacement of isolation layer and the acceleration of superstructure could be reduced simultaneously by the attachment of TID,which was significantly more advantageous than LVD.
作者
叶昆
舒率
Ye Kun;Shu Shuai(School of Civil Engineering and Mechanics,Huazhong University of Science and Technology,Wuhan 430074,China)
出处
《动力学与控制学报》
2020年第5期57-62,共6页
Journal of Dynamics and Control
关键词
调谐惯容阻尼器
基础隔震结构
性能需求
优化设计
tuned inerter damper(TID)
base-isolated structure
performance requirement
optimal design
