高冲击载荷作用下平面式电涡流阻尼器特性数值模拟研究

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (1) : 305-310.

论文

黄通，高钦和，刘志浩，刘大伟

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Numerical simulation for characteristics of planar eddy current damper under high impact load

HUANG Tong, GAO Qinhe, LIU Zhihao, LIU Dawei

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文章历史 +

摘要

为探究平面式电涡流阻尼器在冲击环境中的应用特点，开展了高冲击载荷作用下平面式电涡流阻尼器响应特性数值模拟研究。基于ANSYS Maxwell电磁学有限元软件建立平面式电涡流阻尼器二维数值仿真模型，分析了永磁体和磁靴结构尺寸、导电层和导磁层厚度以及气隙间距对电磁阻尼力的影响。研究结果表明：平面式电涡流阻尼器能够满足安全制动某型发射高冲击载荷，在高速阶段会出现阻尼削弱现象。当永磁体厚度由10mm增加到50mm时，磁阻尼力明显增加，且永磁体厚度为30mm时其质量利用率将达到最大；有无导磁板对磁阻尼力的影响较大，但导磁板厚度超过2mm后磁阻尼力趋于饱和；导电板厚度从0增加到0.6mm时，磁阻尼力成比例增大，但当导体板厚度由0.8mm增加到2mm时，高速阶段的磁阻尼削弱现象明显增大；研究结果可以为平面式电涡流阻尼在冲击环境中的进一步应用提供支撑。

Abstract

In order to explore the application characteristics of the planar eddy current damper in impact environment, a numerical simulation study on the response characteristics of the planar eddy current damper under high impact load was carried out. Based on the ANSYS Maxwell electromagnetic finite element software, a two-dimensional numerical simulation model of the planar eddy current damper was established, and the effects of the structure size of the permanent magnet and the magnetic shoe, the thickness of the conductive layer and the magnetic conductive layer, and the air gap distance on the electromagnetic damping force were analyzed. The research results show that the planar eddy current damper can meet the high impact load generated when a certain type of artillery is safely braked, and the damping phenomenon will occur at high speed. When the thickness of the permanent magnet increases from 10 mm to 50 mm, the magnetoresistance force increases significantly, and the mass utilization ratio reaches the maximum when the thickness of the permanent magnet is 30 mm. The magnetoresistance force tends to be saturated when the thickness of the magnetic guide plate exceeds 2 mm. When the thickness of the conductive plate increases from 0 to 0.6 mm, the magnetoresistance force increases proportionally, but when the thickness of the conductor plate increases from 0.8 mm to 2 m The results can provide support for the further application of planar eddy current damping in shock environment.

导出引用

黄通，高钦和，刘志浩，刘大伟. 高冲击载荷作用下平面式电涡流阻尼器特性数值模拟研究[J]. 振动与冲击, 2022, 41(1): 305-310

HUANG Tong, GAO Qinhe, LIU Zhihao, LIU Dawei. Numerical simulation for characteristics of planar eddy current damper under high impact load[J]. Journal of Vibration and Shock, 2022, 41(1): 305-310

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