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Development and Application of a Power Law Constitutive Model for Eddy Current Dampers

Longteng Liang1,2,3, Zhouquan Feng2,4,*, Hongyi Zhang2,4, Zhengqing Chen2,4, Changzhao Qian1,3

1 School of Civil Engineering and Architecture, Xiamen University of Technology, Xiamen, 361024, China
2 Hunan Provincial Key Laboratory of Wind and Bridge Engineering, Hunan University, Changsha, 410082, China
3 Fujian Provincial Key Laboratory of Wind Disaster and Engineering, Xiamen University of Technology, Xiamen, 361024, China
4 State Key Laboratory of Bridge Engineering Safety and Resilience, Hunan University, Changsha, 410082, China

* Corresponding Author: Zhouquan Feng. Email: email

Computer Modeling in Engineering & Sciences 2024, 138(3), 2403-2419. https://doi.org/10.32604/cmes.2023.031260

Abstract

Eddy current dampers (ECDs) have emerged as highly desirable solutions for vibration control due to their exceptional damping performance and durability. However, the existing constitutive models present challenges to the widespread implementation of ECD technology, and there is limited availability of finite element analysis (FEA) software capable of accurately modeling the behavior of ECDs. This study addresses these issues by developing a new constitutive model that is both easily understandable and user-friendly for FEA software. By utilizing numerical results obtained from electromagnetic FEA, a novel power law constitutive model is proposed to capture the nonlinear behavior of ECDs. The effectiveness of the power law constitutive model is validated through mechanical property tests and numerical seismic analysis. Furthermore, a detailed description of the application process of the power law constitutive model in ANSYS FEA software is provided. To facilitate the preliminary design of ECDs, an analytical derivation of energy dissipation and parameter optimization for ECDs under harmonic motion is performed. The results demonstrate that the power law constitutive model serves as a viable alternative for conducting dynamic analysis using FEA and optimizing parameters for ECDs.

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APA Style
Liang, L., Feng, Z., Zhang, H., Chen, Z., Qian, C. (2024). Development and application of a power law constitutive model for eddy current dampers. Computer Modeling in Engineering & Sciences, 138(3), 2403-2419. https://doi.org/10.32604/cmes.2023.031260
Vancouver Style
Liang L, Feng Z, Zhang H, Chen Z, Qian C. Development and application of a power law constitutive model for eddy current dampers. Comput Model Eng Sci. 2024;138(3):2403-2419 https://doi.org/10.32604/cmes.2023.031260
IEEE Style
L. Liang, Z. Feng, H. Zhang, Z. Chen, and C. Qian "Development and Application of a Power Law Constitutive Model for Eddy Current Dampers," Comput. Model. Eng. Sci., vol. 138, no. 3, pp. 2403-2419. 2024. https://doi.org/10.32604/cmes.2023.031260



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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