• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2025, Vol. 61 ›› Issue (5): 239-249.doi: 10.3901/JME.2025.05.239

Previous Articles    

Efficient Numerical Method of Loaded Contact Analysis for Unparallel Beveloid Gears Considering Multi-tooth Contact

CAO Bing1, HE Kun2, LI Guolong3, CHEN Yongpeng1   

  1. 1. School of Mechatronics and Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400074;
    2. School of Mechanical Engineering, Chongqing Technology and Business University, Chongqing 400067;
    3. College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400030
  • Received:2023-12-01 Revised:2024-03-06 Published:2025-04-15

Abstract: Loaded tooth contact analysis (LTCA) has been an important analysis technique for designing and optimizing beveloid gear pairs. However, accurately and efficiently obtaining the meshing characteristics under load remains a challenge for beveloid gears, because of the complexity of beveloid gears surfaces. Here, an efficient analysis method of loaded contact analysis is proposed. To ensure the calculation efficiency and accuracy, all deformations are considered and a mixed method developed to obtain the flexibility characteristics. Considering the multi-tooth contact, a loaded transmission error calculation method is proposed and a transmission error compatibility condition is considered. Based on the influence coefficient method, the contact model of crossed beveloid gears is developed. By solving the model, the contact pressure, deformation and load sharing can be obtained. It is validated that the contact pressure and deformation calculated by the method are in close agreement with that from simulated loaded tooth contact analysis based on a commercial software(SLTCA) and the calculation efficiency is significantly increased in the case of single-tooth contact and multi-tooth contact compared with SLTCA.

Key words: unparalleled axis, beveloid gear, loaded tooth contact analysis, multi-tooth contact, numerical method

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