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Mesh Independence Analysis and Validation for Wheel Fatigue Life Simulations
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Shihao WANG1, Zhongyao LI1, Xuelong WU1, Yisheng MIAO2, Qinghuai HOU2, Yuling LANG3, Decai KONG3, Xiaoying MA3, Haibo QIAO3, Junsheng WANG1, 2, 4
Chinese Journal of Automotive Engineering | 2025, 15(3) : 395 - 408
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Chinese Journal of Automotive Engineering | 2025, 15(3): 395-408
• Other Technologies •
Mesh Independence Analysis and Validation for Wheel Fatigue Life Simulations
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Shihao WANG1, Zhongyao LI1, Xuelong WU1, Yisheng MIAO2, Qinghuai HOU2, Yuling LANG3, Decai KONG3, Xiaoying MA3, Haibo QIAO3, Junsheng WANG1, 2, 4
Affiliations
  • 1 School of Mechanical Engineering，Beijing Institute of Technology，Beijing 100081，China
  • 2 School of Materials Science，Beijing Institute of Technology，Beijing 100081，China
  • 3 CITIC Dicastal Co.，Ltd.，Qinhuangdao 066010，Hebei，China
  • 4 Advanced Research Institute of Multidisciplinary Science，Beijing Institute of Technology，Beijing 100081，China
Published: 2025-05-20 doi: 10.3969/j.issn.2095–1469.2025.03.12
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This paper investigates the mesh independence of wheel fatigue life simulations. To address issues such as long fatigue assessment cycles, high testing costs, and the strong influence of mesh size on the finite element simulation accuracy, fatigue life predictions were carried out using both the nominal stress method and the local stress-strain method. The mesh independence of the simulation results was verified based on the grid convergence index (GCI) theory, leading to the recommendation of an optimal mesh configuration for fatigue life simulation. A fatigue life simulation method is proposed with high-quality meshing and low error range, which provides a theoretical foundation for establishing mesh independence in fatigue life prediction. Taking an aluminum alloy wheel as the research object, the wheel was meshed with different grid sizes according to the GCI theory. Radial and bending static simulations of the wheel, as well as fatigue life prediction simulations, were then conducted. The simulation results under different grid sizes were analyzed and a criterion was proposed to assess the rationality of tetrahedral meshing for aluminum alloy passenger car wheel hubs. Corresponding verification analysis was conducted. The results show that the GCI can effectively supports the mesh independence analysis and validation in wheel fatigue life simulations. The results in this paper provide a reliable basis for evaluating the suitability of tetrahedral mesh sizes in such applications.

automobile wheel  /  FEM  /  fatigue  /  grid convergence index  /  mesh size  /  aluminum alloy
Shihao WANG, Zhongyao LI, Xuelong WU, Yisheng MIAO, Qinghuai HOU, Yuling LANG, Decai KONG, Xiaoying MA, Haibo QIAO, Junsheng WANG. Mesh Independence Analysis and Validation for Wheel Fatigue Life Simulations[J]. Chinese Journal of Automotive Engineering, 2025 , 15 (3) : 395 -408 . DOI: 10.3969/j.issn.2095–1469.2025.03.12
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Article Info
doi: 10.3969/j.issn.2095–1469.2025.03.12
  • Receive Date：2024-04-30
  • Online Date：2025-07-18
  • Published：2025-05-20
Article Data
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History
  • Received：2024-04-30
  • Revised：2024-05-26
Funding
Affiliations
    1 School of Mechanical Engineering，Beijing Institute of Technology，Beijing 100081，China
    2 School of Materials Science，Beijing Institute of Technology，Beijing 100081，China
    3 CITIC Dicastal Co.，Ltd.，Qinhuangdao 066010，Hebei，China
    4 Advanced Research Institute of Multidisciplinary Science，Beijing Institute of Technology，Beijing 100081，China
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表12种不同金属材料的力学参数
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Number of
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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