| 应变-寿命模型在曲轴寿命预测中的对比研究 |
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| 引用本文： | 孙楠楠,李国祥,王洋,魏涛,刘海军.应变-寿命模型在曲轴寿命预测中的对比研究[J].车用发动机,2015(1):13-16. |
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| 作者姓名： | 孙楠楠 李国祥 王洋 魏涛 刘海军 |
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| 作者单位： | 1. 山东大学能源与动力工程学院,山东济南,250061;2. 潍柴动力股份有限公司技术中心,山东潍坊,261205 |
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| 基金项目： | 国家高科技研究发展计划“863”项目资助 |
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| 摘 要： | 将3种不同的应变-寿命模型应用于曲轴的疲劳寿命评估中,并对疲劳试验数据和预测数据进行了对比。考虑到曲轴淬火残余应力的影响,对曲轴的表面残余应力进行了测试,并将测试结果应用于计算中。通过一系列的对比,证明了S-L-B模型对于曲轴的疲劳寿命预测是最有效的,Chen模型次之,修正的SWT模型一致性最差。
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| 关 键 词： | 曲轴 应变 疲劳寿命 残余应力 寿命预测 |
Prediction of Crankshaft Life Based on Strain-Life Model |
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| SUN Nan-nan,LI Guo-xiang,WANG Yang,WEI Tao,LIU Hai-jun.Prediction of Crankshaft Life Based on Strain-Life Model[J].Vehicle Engine,2015(1):13-16. |
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| Authors: | SUN Nan-nan LI Guo-xiang WANG Yang WEI Tao LIU Hai-jun |
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| Abstract: | The crankshaft fatigue life was evaluated with three strain‐life models and the fatigue data and prediction data were compared .Considering the influence of existing crankshaft quenching residual stress ,the surface residual stress was measured and its test result was applied to the calculation .The results show that the S‐L‐B model is the most effective ,the Chen model ranks the second and the consistency of modified SWT model is the worst . |
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| Keywords: | crankshaft strain fatigue life residual stress life prediction |
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