| FATIGUE LIFE PREDICTION OF CRANKSHAFT MADE OF MATERIAL 48MnV BASED ON FATIGUE TESTS,DYNAMIC SIMULATION AND FEA |
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| 作者姓名： | ZHANG Guoqing PU Gengqiang WANG Chengtao Life Quality and Mechanical Engineering Institute Shanghai Jiaotong University Shanghai China |
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| 作者单位： | ZHANG Guoqing PU Gengqiang WANG Chengtao Life Quality and Mechanical Engineering Institute，Shanghai Jiaotong University，Shanghai 200030，China |
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| 摘 要： | S-N curve and fatigue parameters of 48MnV are obtained using small sample tests and staircase or up and down method, which paves the way for predicting fatigue life of crankshaft made of 48MnV. The fatigue life of the crankshaft of a six-cylinder engine is calculated using different damage models such as S-N method, normal strain approach, Smoth-Watson-Topper (SWT)-Bannantine approach, shear strain approach, and Fatemi-Socie method based on dynamic simulation and finite element analysis (FEA) of crankshaft. The results indicate that the traditional calculation is conservative and the residual fatigue life of crankshaft is sufficient to maintain next life cycle if the crankshaft is remanufactured after its end of life.
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| 关 键 词： | 48MnV 多轴疲劳 曲轴 动力学模拟 有限元 |
FATIGUE LIFE PREDICTION OF CRANKSHAFT MADE OF MATERIAL 48MnV BASED ON FATIGUE TESTS,DYNAMIC SIMULATION AND FEA |
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| ZHANG Guoqing PU Gengqiang WANG Chengtao Life Quality and Mechanical Engineering Institute,Shanghai Jiaotong University,Shanghai ,China.FATIGUE LIFE PREDICTION OF CRANKSHAFT MADE OF MATERIAL 48MnV BASED ON FATIGUE TESTS,DYNAMIC SIMULATION AND FEA[J].Chinese Journal of Mechanical Engineering,2006,19(2):307-311. |
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| Authors: | ZHANG Guoqing PU Gengqiang WANG Chengtao |
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| Affiliation: | Life Quality and Mechanical Engineering Institute,Shanghai Jiaotong University,Shanghai 200030, China |
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| Abstract: | S-N curve and fatigue parameters of 48MnV are obtained using small sample tests and staircase or up and down method, which paves the way for predicting fatigue life of crankshaft made of 48MnV. The fatigue life of the crankshaft of a six-cylinder engine is calculated using different damage models such as S-N method, normal strain approach, Smoth-Watson-Topper (SWT)-Bannantine approach, shear strain approach, and Fatemi-Socie method based on dynamic simulation and finite element analysis (FEA) of crankshaft. The results indicate that the traditional calculation is conservative and the residual fatigue life of crankshaft is sufficient to maintain next life cycle if the crankshaft is remanufactured after its end of life. |
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| Keywords: | 48MnV Multiaxial fatigue Crankshaft Dynamic simulation Finite element analysis (FEA) |
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