| 摘要:为查找某型柴油机喷油泵接头疲劳失效的原因,利用有限元软件ANSYS和FE-SAFE相结合的方法,开展了表面粗糙度对零件疲劳寿命及疲劳安全系数影响的研究分析,并与试验结果进行了比较。分析结果表明,计算结果与试验检测结果较为一致,零件表面的粗糙度等级对其疲劳寿命的影响很大,在设计时应予充分考虑。分析结果可为表面设计及加工工艺改进提供参考依据。 |
| 关键词: 喷油泵 表面粗糙度 疲劳寿命 FE-SAFE |
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| Fatigue Life FEA on the Diesel Engine Fuel Injection Pump Joint |
| Liu Lijun,Jia Wei,Xia Qian |
| Hudong Heavy Machine Co. LTD, Shanghai200129 |
| Abstract:The method integrating the finite element software ANSYS with FE-SAFE is used to find out the fatigue reason of a certain type diesel fuel injection pump joint. The research of the surface roughness′ influence on the parts′ fatigue life and fatigue safe factors is carried out, which is compared with the experimental results. The analysis results show that the calculation results are in accord with the test results, and the grade of surface roughness can sharply affect the fatigue life. The results can be provided as reference for the surface design and process technical improvement. |
| Key words: fuel injection pump surface roughness fatigue life FE-SAFE |
