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Smart Structures and Systems Volume 29, Number 3, March 2022 , pages 457-473 DOI: https://doi.org/10.12989/sss.2022.29.3.457 |
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Experimental study on the effect of EC-TMD on the vibration control of plant structure of PSPPs |
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Tengfei Zhong, Xin Feng, Yu Zhang and Jing Zhou
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| Abstract | ||
| A high-frequency vibration control method is proposed in this paper for Pumped Storage Power Plants (PSPPs) using Eddy Current Tuned Mass Damper (EC-TMD), based on which a new type of EC-TMD device is designed. The eddy current damper parameters are optimized by numerical simulation. On this basis, physical simulation model tests are conducted to compare and study the effect of structural performance with and without damping, different control strategies, and different arrangement positions of TMD. The test results show that EC-TMD can effectively reduce the control effect under high-frequency vibration of the plant structure, and after the additional damping device forms EC-TMD, the energy dissipation is further realized due to the intervention of eddy current damping, and the control effect is subsequently improved. The Multi-Tuned Mass Damper (MTMD) control strategy broadens the tuning band to improve the robustness of the system, and the vibration advantage is more obvious. Also, some suggestions are made for the placement of the dampers to promote their application. | ||
| Key Words | ||
| eddy current TMD; high-frequency vibration; plant structure; pumped storage power plants; vibration control | ||
| Address | ||
| (1) State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Liaoning Dalian 116024, China; (2) Institute of Earthquake Engineering, Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, China. | ||