Optimal and seismic response analysis of inter-story isolation system with tuned inerter damper (IIS-TID)

IF 2.5 3区工程技术 Q2 MECHANICS

Archive of Applied Mechanics Pub Date : 2025-07-05 DOI:10.1007/s00419-025-02847-y

Yang Liu, Dewen Liu, Zhuoxin Yang, Yong Ding, Fei Xie

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引用次数: 0

Abstract

The optimal and seismic performance of the inter-story isolation with tuned inerter damper (IIS-TID) is studied using simplified 3-degree-of-freedom (3DOF) and multi-degree-of-freedom (MDOF) models. Considering the spatial relationship between the inertial mass and the damper units, two distinct models—referred to as Model A and Model B—were established. Firstly, a 3DOF motion governing equation is used to derive the seismic response variance of the substructure, superstructure, and isolation layer of IIS-TID system under white noise excitation. The effects of structural and TID parameters on enhanced control are analyzed. Considering different objective functions, the frequency and damping parameters are optimized and the simplified expression of the optimal TID with each structure parameter is conducted. Further, comparison of the seismic response of the IIS with and without TID is made by using a MDOF model example under ordinary and near-fault earthquake excitation. Finally, the sensitivity of the optimized design parameters of the TID is analyzed as reference for engineering practice. The results illustrate the TID system is effective to control acceleration and story drift responses of the substructure, superstructure, and isolation layer of the IIS, especially for isolation displacement and substructure acceleration.

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带调谐阻尼器的层间隔震系统优化及地震反应分析

采用简化的三自由度（3DOF）和多自由度（MDOF）模型，研究了带调谐干涉阻尼器的层间隔震优化性能和抗震性能。考虑惯性质量与阻尼器单元之间的空间关系，建立了两个不同的模型——模型A和模型b。首先，利用三维运动控制方程推导了在白噪声激励下IIS-TID体系下部结构、上部结构和隔震层的地震响应方差；分析了结构参数和TID参数对增强控制的影响。考虑不同的目标函数，对频率和阻尼参数进行了优化，并对各结构参数下的最优TID进行了简化表达式。利用多自由度模型算例，比较了在普通地震和近断层地震激励下，不加TID时，IIS的地震响应。最后，对优化后的TID设计参数的灵敏度进行了分析，为工程实践提供参考。结果表明，TID系统能有效地控制IIS下部结构、上部结构和隔震层的加速度和层间漂移响应，特别是隔震位移和下部结构加速度。

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来源期刊

Archive of Applied Mechanics 物理-力学

CiteScore

4.40

自引率

10.70%

发文量

234

审稿时长

4-8 weeks

期刊介绍： Archive of Applied Mechanics serves as a platform to communicate original research of scholarly value in all branches of theoretical and applied mechanics, i.e., in solid and fluid mechanics, dynamics and vibrations. It focuses on continuum mechanics in general, structural mechanics, biomechanics, micro- and nano-mechanics as well as hydrodynamics. In particular, the following topics are emphasised: thermodynamics of materials, material modeling, multi-physics, mechanical properties of materials, homogenisation, phase transitions, fracture and damage mechanics, vibration, wave propagation experimental mechanics as well as machine learning techniques in the context of applied mechanics.