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Suspension Local Flexion Injury Estimation and Fatigue Target Correction
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Donghai Huang, Zhenqi Zhao, Congcong Wang, Weidong Wu
Automobile Technology & Material | 2023, (10) : 12 - 17
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Automobile Technology & Material | 2023, (10): 12-17
Suspension Local Flexion Injury Estimation and Fatigue Target Correction
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Donghai Huang, Zhenqi Zhao, Congcong Wang, Weidong Wu
Affiliations
  • Dongfeng Motor Co., Ltd. Dongfeng Nissan Passenger Vehicle Company, Technical Center, Guangzhou 510800
Published: 2023-10-20 doi: 10.19710/J.cnki.1003-8817.20230258
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For the suspected local flexion injury found during vehicle development, the local flexion was confirmed through comparison of critical flexion stress calculations and measurement of normal deformation, identifying the potential risk of local flexion on durability performance. Through stress measurement, the S-N curve at the notch was modified using the Haywood model. Based on the fatigue damage accumulation model that considers loading sequence and interaction, and the dynamic residual S-N curve, the residual lifespan of the component was calculated, and compared with the experimentally measured residual lifespan to verify the feasibility of the method. Based on the above residual lifespan estimation method, a durability target modification method was proposed, pointing out the shortcomings of this method and engineering solutions.

Suspension  /  Local flexion injury  /  Durability  /  Fatigue  /  Injury
Donghai Huang, Zhenqi Zhao, Congcong Wang, Weidong Wu. Suspension Local Flexion Injury Estimation and Fatigue Target Correction[J]. Automobile Technology & Material, 2023 , (10) : 12 -17 . DOI: 10.19710/J.cnki.1003-8817.20230258
Year 2023 volume Issue 10
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doi: 10.19710/J.cnki.1003-8817.20230258
  • Online Date:2026-01-12
  • Published:2023-10-20
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    Dongfeng Motor Co., Ltd. Dongfeng Nissan Passenger Vehicle Company, Technical Center, Guangzhou 510800
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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