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Effect of Magnetic Circuit's Structure Parameters on Torque-speed Characteristic for Electromagnetic Damper

机译：磁路结构参数对电磁阻尼器扭矩特性的影响

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摘要

The electromagnetic damper studied in this paper belongs to a special kind of coreless generator, which is primarily used for the energy absorption and dissipation in space docking mechanism buffer system. The parameters of magnetic circuit structure which determines the air-gap flux density are important factors in affecting damping torque. Three-dimensional models are built based on MagNet of Infolytic corporation in this paper. The effects of structure parameters of magnetic circuit such as magnet material, magnetic pole-pairs, rotor thickness on the torque-speed characteristic are researched. The analysis results show that the damping torque is proportional to the square of the amplitude of the fundamental component of the air gap flux density, rotor thickness respectively, the relationship of the torque-speed ratio with the magnetic pole is neither directly proportional nor inversely proportional.
机译：本文研究的电磁阻尼器属于一种特殊的无芯发电机，主要用于空间对接机构缓冲系统中的能量吸收和耗散。 确定气隙磁通密度的磁路结构参数是影响阻尼扭矩的重要因素。 本文基于Infolytic Corporation的磁铁构建了三维模型。 研究了磁力材料，磁极对，转子厚度的磁路结构参数的影响，进行了扭矩速度特性。 分析结果表明，阻尼扭矩分别与气隙磁通密度，转子厚度的基本分量的幅度的平方成比例，与磁极的扭矩比的关系既不是成比例也不成反比 。

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