Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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External Magnetic Field of Journal Bearing with Twined Solenoid

  • Zhang, Yanjuan (School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University) ;
  • Wang, Jianmei (College of Mechanical Engineering, Taiyuan University of Science and Technology) ;
  • Li, Decai (School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University)
  • Received : 2017.01.20
  • Accepted : 2017.04.04
  • Published : 2017.06.30
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Abstract

In this paper, the distribution of internal magnetic induction intensity of oil-film bearing twined solenoids was proposed. The magnetic field was generated by solenoids and magnetized bearing. The magnetized bearing was simplified as solenoid model. The mathematical model of magnetic induction intensity at any point of finite solenoid was deduced. Through experiment method, the distribution of the internal magnetic induction intensity of oil-film bearing and the magnetizing current formula of bearing was obtained. Further, the magnetic induction intensity distribution of magnetization bearing was solved successfully. The results showed that the magnetic induction was a second-degree parabola with open upwards along the axial plane and the distribution of magnetic induction intensity was opposite to the rule of magnetic induction intensity generated by solenoids. In addition, the magnetic flux density increased linearly with the increase of current.

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