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Experimental study on vibration reduction performance of frequency-adjustable TMD based on SMA springs
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Zheng LU1, 2, Ruoyu ZHAO2, Xiangqian LIU2, Jiang DU3, Guowei ZHANG4
Earthquake Engineering and Engineering Dynamics | 2025, 45(5) : 77 - 87
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Earthquake Engineering and Engineering Dynamics | 2025, 45(5): 77-87
• Research Paper •
Experimental study on vibration reduction performance of frequency-adjustable TMD based on SMA springs
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Zheng LU1, 2, Ruoyu ZHAO2, Xiangqian LIU2, Jiang DU3, Guowei ZHANG4
Affiliations
  • 1.State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
  • 2.Department of Disaster Mitigation for Structures, Tongji University, Shanghai 200092, China
  • 3.School of Materials Science and Engineering, Tongji University, Shanghai 200092, China
  • 4.Multi-Functional Shaking Tables Laboratory, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
Published: 2025-10-22 doi: 10.13197/j.eeed.2025.0508
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To improve the seismic performance of building structures and overcome the shortcomings of traditional passive tuned mass dampers (TMDs) with narrow vibration reduction frequency bands and difficulty in adjusting their own frequencies, a SMA-TMD with frequency modulation capability is presented based on SMA springs made of shape memory alloy (SMA) materials. Through frequency testing experiments, researchers found that the frequency of SMA-TMD increases with the increase of current flowing into the SMA spring. Shaking table tests were designed and conducted to validate the feasibility and effectiveness of the frequency tuning and vibration reduction performance of the SMA-TMD. The experimental results show that compared to a detuned traditional TMD, the SMA-TMD, which retunes with the main structure by adjusting input current, demonstrates a higher vibration reduction rate in controlling the top floor peak acceleration response of the structure. The damping performance can be improved by at least 21.5%. Furthermore, the working stroke of the SMA-TMD is significantly improved compared to that of the traditional TMD, the maximum working stroke under the two sets of experimental conditions can be reduced by at least 46.9% and 39.2%, respectively. This improvement can save installation space, reserve more building area, and broaden the application scenarios by enabling placement in structures with spatial limitations.

shape memory alloy  /  vibration control  /  variable frequency  /  tuned mass damper  /  shaking table test
Zheng LU, Ruoyu ZHAO, Xiangqian LIU, Jiang DU, Guowei ZHANG. Experimental study on vibration reduction performance of frequency-adjustable TMD based on SMA springs[J]. Earthquake Engineering and Engineering Dynamics, 2025 , 45 (5) : 77 -87 . DOI: 10.13197/j.eeed.2025.0508
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Year 2025 volume 45 Issue 5
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Article Info
doi: 10.13197/j.eeed.2025.0508
  • Receive Date：2024-08-08
  • Online Date：2026-03-20
  • Published：2025-10-22
Article Data
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History
  • Received：2024-08-08
  • Revised：2024-12-04
Funding
Affiliations
    1.State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
    2.Department of Disaster Mitigation for Structures, Tongji University, Shanghai 200092, China
    3.School of Materials Science and Engineering, Tongji University, Shanghai 200092, China
    4.Multi-Functional Shaking Tables Laboratory, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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