Volume 34 Issue 10
Oct.  2019
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NIU Rongjun, HU Yusheng, WANG Yonggang. Loading performances simulation analysis of roller needle bearing with partial loading[J]. Journal of Aerospace Power, 2019, 34(10): 2227-2236. doi: 10.13224/j.cnki.jasp.2019.10.016
Citation: NIU Rongjun, HU Yusheng, WANG Yonggang. Loading performances simulation analysis of roller needle bearing with partial loading[J]. Journal of Aerospace Power, 2019, 34(10): 2227-2236. doi: 10.13224/j.cnki.jasp.2019.10.016
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Loading performances simulation analysis of roller needle bearing with partial loading

doi: 10.13224/j.cnki.jasp.2019.10.016
  • 1.

    School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang Henan 471003,China

  • 2.

    SKL of Air Conditioning Equipment and System Energy Conservation,Gree Electric Appliances,Incorporated of Zhuhai,Zhuhai Guangdong 519000,China

  • Received Date: 2019-04-04
  • Publish Date: 2019-10-28
    Abstract
  • Based on the characteristics of partial loading and support modes, afinite element analysis model of roller needle bearing fully considering the flexible structure influence of the cam and pin was established. Then, the influences of bearing load, radial clearance and installation misalignment angle on the mechanical property, stiffness and life of the bearing were analyzed systematically, and the correctness of the simulation results was verified by numerical and experimental methods. Results show that the radial load and installation misalignment angle have great influence on the contact performance and service life of bearings under partial loading conditions, while the clearance of bearings has little effect on the contact performance and service life of bearings; the increase of radial load and installation misalignment angle makes the bearing area smaller, and the original symmetrical contact pressure distribution pattern “hump” of the needle generatrix is gradually shifting to the deflection angle, resulting in the pressure distribution pattern of “one high one low”; the maximum contact pressure increases, and the bearing life decreases rapidly. However, under the conditions of limit load and installation misalignment angle, the service life index still meets the bearing design requirements.

     

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