1.School of Civil Engineering, Hunan University of science and Technology, Xiangtan 411201， China；
2.Hunan Provincial Key Laboratory of Structures for Wind Resistance and Vibration Control, Hunan University of science and Technology, Xiangtan 411201， China
Abstract：Here, Copper tubes and magnets were used to fabricate tubular electric eddy dampers.A precise measuring method for damping force of a tubular electric eddy damper was proposed to eliminate effects of friction and inertia force, and obtain accurate electric eddy damping force.Relations between damping force and magnetic pole thickness, pole spacing, relative speed of copper tube to magnet, etc., respectively were studied.The results showed that damping force time history can be accurately obtained using the proposed measuring method; damping coefficient of the damper increases with increase in magnetic pole thickness and number of magnetic pole, and this coefficient firstly increases and then decreases with increase in pole spacing; electric eddy damper is approximately an ideal viscous one and its damping coefficient is directly proportional to number of magnetic pole; taking efficiency value of damping coefficient as the evaluation index, the optimal values for magnetic pole thickness and pole spacing of the tubular electric eddy damper are obtained to provide a reference for the optimal design of tubular electric eddy dampers.
禹见达1,2，张湘琦1，彭临峰1，彭剑1,2. 管式电涡流阻尼力的精确测量及阻尼器优化设计[J]. 振动与冲击, 2020, 39(3): 149-154.
YU Jianda1,2, ZHANG Xiangqi1, PENG Linfeng1, PENG Jian1,2. Optimal design of tubular electric eddy damper and its damping force’s accurate measurement. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(3): 149-154.
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