Evaluation of the seismic performance of a multi-coil MR damper using non-linear method

IF 3.9 2区工程技术 Q1 ENGINEERING, CIVIL

Structures Pub Date : 2024-10-25 DOI:10.1016/j.istruc.2024.107555

C. Daniel , S. Vivekananda Sharma , G. Hemalatha , E. Arunraj

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引用次数: 0

Abstract

Magnetorheological dampers (MR) have the ability to provide high damping and subsequent energy dissipation which has a potential application in mitigation of natural hazard. These features of advanced damping technology achieved from the interaction between magnetic field induced MR fluid and the rod of piston. In this paper, hybrid simulation is evaluated for a Reinforced Concrete (RC) frame with MR Damper under various configuration subjected to dynamic loading is numerically investigated using OpenSees framework and validated experimentally. In OpenSees framework Bouc Wen Material parameters were incorporated by the experimental results of MR Damper. The response of the three RC frames, both numerically and the experimentally having diagonally attached MR damper at 0 A current, 3 A current and without MR damper, were compared for El-Centro excitation. In comparison of results, the specimen with MR Damper at 3 A current displays better performance. Maximum of 23.02 % displacement reduction with 38.35 % frame force increment can be achieved when compared with bare frame. This validation proves the hybrid simulation system has successfully predicted the seismic response of the test specimen.

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使用非线性方法评估多线圈 MR 阻尼器的抗震性能

磁流变阻尼器（MR）具有提供高阻尼和随后消散能量的能力，在减轻自然灾害方面具有潜在的应用价值。先进阻尼技术的这些特点是通过磁场诱导磁流变流体与活塞杆之间的相互作用实现的。本文使用 OpenSees 框架对钢筋混凝土（RC）框架与磁共振阻尼器的混合模拟进行了评估，在不同配置下承受动态载荷，并进行了数值研究和实验验证。在 OpenSees 框架中，布克文材料参数与 MR 阻尼器的实验结果相结合。在 El-Centro 激振条件下，对三个 RC 框架的响应进行了比较，即在 0 A 电流、3 A 电流和不带 MR 阻尼器的情况下，数值和实验结果均显示对角线连接 MR 阻尼器的响应。比较结果表明，在 3 A 电流下带有 MR 阻尼器的试样性能更好。与裸框架相比，位移减少了 23.02%，框架力增加了 38.35%。这一验证证明混合模拟系统成功预测了试样的地震响应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Structures Engineering-Architecture

CiteScore

5.70

自引率

17.10%

发文量

1187

期刊介绍： Structures aims to publish internationally-leading research across the full breadth of structural engineering. Papers for Structures are particularly welcome in which high-quality research will benefit from wide readership of academics and practitioners such that not only high citation rates but also tangible industrial-related pathways to impact are achieved.