Volume 34 Issue 5
May  2019
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Design method for bearing-support structure and mechanical properties of high-speed rotor system[J]. Journal of Aerospace Power, 2019, 34(5): 961-970. doi: 10.13224/j.cnki.jasp.2019.05.001
Citation: Design method for bearing-support structure and mechanical properties of high-speed rotor system[J]. Journal of Aerospace Power, 2019, 34(5): 961-970. doi: 10.13224/j.cnki.jasp.2019.05.001

Design method for bearing-support structure and mechanical properties of high-speed rotor system

doi: 10.13224/j.cnki.jasp.2019.05.001
  • Received Date: 2018-09-10
  • Publish Date: 2019-05-28
  • For the optimization design of the structure and mechanical properties of the high-speed areo-engine rotor system, the influence of bearing-support properties (supporting point and supporting stiffness) on the rotor stiffness and dynamics was studied, and the correlation model for the bearing-support structure and rotor dynamics properties was established. The correlation between bearing-support parameters and mechanical properties, including the rotor stiffness, vibration, was analyzed. The influences of bearing-support properties and inertia load of rotating disc on rotor dynamics were quantitatively described, and the optimization design method and flow of bearing-support structure and rotor dynamics were presented. The numerical simulation result shows that the bearing-support structure properties method could determine the supporting point and supporting stiffness, and improve the stuffiness and vibration properties. This method is highly feasible, and beneficial to improve the design efficiency, and has important reference value for design of areo-engine overall structural layout and structural dynamics.

     

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