Natural frequencies and vibrating modes for a magnetic planetary gear drive

Natural frequencies and vibrating modes for a magnetic planetary gear drive
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磁性行星齿轮传动的固有频率和振动模式

DOI:
10.3233/sav-2012-0680
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发表时间:
2012
影响因子:
1.6
通讯作者:
zhu xuejun
zhu xuejun
中科院分区:
工程技术4区
文献类型:
--
作者:
xu lizhong;zhu xuejun

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本文建立了磁性行星齿轮传动的动力学模型。在此基础上,给出了磁性行星齿轮传动的动力学方程。由驱动系统各元件之间的磁啮合力和磁啮合力矩,得到驱动系统的切向和径向磁啮合刚度。利用这些方程,研究了磁性行星齿轮传动的固有频率和振型。讨论了固有频率对系统参数的敏感性。结果表明,极对数和气隙对固有频率有明显的影响。当行星齿轮数大于2时,传动系统的振动包括中心元件的扭转模态、中心元件的平移模态和行星模态。对于行星齿轮数等于2的情况,不发生行星模式,发生冠轮模式和太阳轮模式。
In this paper, a dynamic model for a magnetic planetary gear drive is proposed. Based on the model, the dynamic equations for the magnetic planetary gear drive are given. From the magnetic meshing forces and torques between the elements for the drive system, the tangent and radial magnetic meshing stiffness is obtained. Using these equations, the natural frequencies and the modes of the magnetic planetary gear drive are investigated. The sensitivity of the natural frequencies to the system parameters is discussed. Results show that the pole pair number and the air gap have obvious effects on the natural frequencies. For the planetary gear number larger than two, the vibrations of the drive system include the torsion mode of the center elements, the translation mode of the center elements, and the planet modes. For the planetary gear number equal to two, the planet mode does not occur, the crown mode and the sun gear mode occur.
DOI: 10.3901/jme.2001.11.066
发表时间: 2001
影响因子: 4.2
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