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Journal of Shenyang Aerospace University >

2024 , Vol. 41 >Issue 5: 1 - 14

DOI: https://doi.org/10.3969/j.issn.2095-1248.2024.05.001

Aerospace Engineering

Dynamic modelling of gear transmission system considering tooth flank spalling

  • Jing TIAN , 1 ,
  • Cai WANG 1 ,
  • Xiyi LI 1 ,
  • Zengde SHAO 2 ,
  • Zhaoyang XIE 1
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  • 1. Liaoning Province Key Laboratory of Advanced Test Technology for Aeronautical Propulsion System，Shenyang Aerospace University，Shenyang 110136，China
  • 2. AECC Shenyang Engine Research Institute，Shenyang 110015，China

Received date: 2024-07-22

  Online published: 2024-12-11

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Abstract

Addressing the issue that the current energy method cannot accurately describe the time-varying meshing stiffness of the gears with tooth flank spalling，resulting in the imperfect dynamic modelling method for the fault of gear transmission system，an improved energy method was proposed.Considering various types of tooth frank spalling，a time-varying meshing stiffness formula that consi-dered the tooth frank spalling was established.The established time varying meshing stiffness was introduced into a six-degree-of-freedom transmission system，creating a dynamic model of the gear transmission system that could simulate the tooth frank spalling.The Newmark-β method was used for solving，the numerical simulation results were compared and analyzed with the experimental data to verify the accuracy of the established model.Based on this model，the influence of the main parameters of tooth frank spalling on the time-varying stiffness，the corresponding stiffness variation law and the frequency characteristics of the dynamic response were investigated.The results show that the secondary frequency peak with a spacing of 10 Hz occurs on both sides of the characteristic frequency of the gear transmission system with tooth frank spalling.

Key words： time-varying meshing stiffness; tooth flank spalling; gear transmission system; Newmark-β method; frequency characteristics

Cite this article

Jing TIAN , Cai WANG , Xiyi LI , Zengde SHAO , Zhaoyang XIE . Dynamic modelling of gear transmission system considering tooth flank spalling[J]. Journal of Shenyang Aerospace University, 2024 , 41(5) : 1 -14 . DOI: 10.3969/j.issn.2095-1248.2024.05.001

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