管式电涡流阻尼力的精确测量及阻尼器优化设计

禹见达1,2,张湘琦1,彭临峰1,彭剑1,2

振动与冲击 ›› 2020, Vol. 39 ›› Issue (3) : 149-154.

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (3) : 149-154.
论文

管式电涡流阻尼力的精确测量及阻尼器优化设计

  • 禹见达1,2,张湘琦1,彭临峰1,彭剑1,2
作者信息 +

Optimal design of tubular electric eddy damper and its damping force’s accurate measurement

  • YU Jianda1,2, ZHANG Xiangqi1, PENG Linfeng1, PENG Jian1,2
Author information +
文章历史 +

摘要

采用紫铜管与磁铁制作了管式电涡流阻尼器,并提出了一种电涡流阻尼器阻尼力的精细化测量方法,消除了摩擦力和惯性力的影响,获得了精确的电涡流阻尼力。研究了阻尼力与电涡流阻尼器中磁级厚度、磁级间距、铜管与磁铁的相对速度等参数的关系;研究结果表明:提出的阻尼力测量方法可以准确地获得磁铁与铜管相互作用的阻尼力时程;阻尼器的阻尼系数随磁级厚度、磁级数的增加而增大,随磁级间距的增大表现出先增大、后减小的趋势;电涡流阻尼器近似为理想的黏性阻尼器,并且其阻尼系数与磁级数也近似成正比。通过引入阻尼系数效率值作为评价指标,获得了管式电涡流阻尼器的磁级厚度和磁级间距的最优值,可为电涡流阻尼器的优化设计提供参考。

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.

关键词

结构振动控制 / 电涡流阻尼器 / 理想黏性阻尼器 / 阻尼系数测定

Key words

structural vibration control / electric eddy damper / ideal viscous damper / damping coefficient measurement

引用本文

导出引用
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 Jianda1,2, ZHANG Xiangqi1, PENG Linfeng1, PENG Jian1,2. Optimal design of tubular electric eddy damper and its damping force’s accurate measurement[J]. Journal of Vibration and Shock, 2020, 39(3): 149-154

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