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| 车辆承载部件随机疲劳计算方法分析 |
| Random Fatigue Calculation Method for Vehicle Bearing Components |
| Received:April 10, 2016 Revised:May 10, 2016 |
| DOI：10.3969/j.issn.1674-6457.2016.03.016 |
| 中文关键词: 车辆承载部件 随机疲劳 疲劳计算方法 设计与成形工艺 |
| 英文关键词: vehicle bearing load components random fatigue calculation methods of fatigue design and forming technology |
| 基金项目: |
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| 中文摘要: |
| 基于随机疲劳相关理论， 阐述了车辆承载部件的随机疲劳特性； 从车辆承载部件的随机疲劳分析与结构设计出发， 对比分析了承载部件在结构设计中用到的一些随机疲劳计算方法， 并列出了基于高斯分布和Miner线性累计损伤定律的三区间法的具体计算过程。通过对比分析， 指出了各随机疲劳计算方法的优缺点及应用范围。为车辆承载部件的结构设计、 成形工艺提供指导。关键词：车辆承载部件；随机疲劳；疲劳计算方法；设计与成形工艺 |
| 英文摘要: |
| In order to get good comprehensive properties of butterfly valve plate material applying to water supply system，based on the 1Cr11Ni2W2MoV steel， we added Cu and Sn elements respectively to got two kinds of new materials. The mechanical properties， corrosion resistance and processing performance of these three kinds of materials were tested. The results indicated that in terms of mechanical properties， adding Cu element had little influence on strength but improved the elongation， adding Sn element improved the strength but had little influence on elongation. In terms of corrosion resistance， adding Cu element improved the corrosion resistance and adding Sn element improved the corrosion resistance too but the effect was not better than Cu. In terms of processing performance， adding Cu element improved the cutting performance but the Sn on the contrary. So for the butterfly valve plate material choice， in order to improve the machining accuracy and corrosion resistance，we adopted the material that add Cu element to 1Cr11Ni2W2MoV steel. In order to improve the strength and corrosion resistance， we adopted the material that add Sn element to 1Cr11Ni2W2MoV steel. |
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