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Research on Lifetime Prediction of Engine Rubber Seal Based on Leakage Rate
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Cong Rao, Liming Zhai, Fuxiang Liang, Xin Wang
Automobile Technology & Material | 2025, (1) : 30 - 36
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Automobile Technology & Material | 2025, (1): 30-36
Original article
Research on Lifetime Prediction of Engine Rubber Seal Based on Leakage Rate
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Cong Rao, Liming Zhai, Fuxiang Liang, Xin Wang
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  • FAW Jiefang Automobile Co., Ltd. Powertrain Business Division, Wuxi 214000
Published: 2025-01-20 doi: 10.19710/J.cnki.1003-8817.20240386
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In this study, taking the sealing structure of oil pump flanges as the research object, a rough peak contact model and a parallel flat plate leakage model are further established to calculate the leakage rate of the sealing surface based on the contact pressure distribution on the sealing surface obbtained by finite element mechanical analysis. At the same time, the time-temperature equivalent model of rubber performance is established by rubber accelerated aging test so as to predict rubber sealing life. Finally, the rubber sealing life is verified by seal leakage rate bench test, proving that the test result is basically consistent with the prediction result.

Rubber seal  /  Leakage rate  /  Acceleration aging  /  Lifetime prediction
Cong Rao, Liming Zhai, Fuxiang Liang, Xin Wang. Research on Lifetime Prediction of Engine Rubber Seal Based on Leakage Rate[J]. Automobile Technology & Material, 2025 , (1) : 30 -36 . DOI: 10.19710/J.cnki.1003-8817.20240386
Year 2025 volume Issue 1
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doi: 10.19710/J.cnki.1003-8817.20240386
  • Online Date:2025-11-12
  • Published:2025-01-20
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    FAW Jiefang Automobile Co., Ltd. Powertrain Business Division, Wuxi 214000
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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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