| 高强度连杆螺栓的疲劳寿命分析 |
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| 引用本文： | 田杰,商高高,周建兵,朱云明.高强度连杆螺栓的疲劳寿命分析[J].南京林业大学学报(自然科学版),2005,29(5):77-79. |
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| 作者姓名： | 田杰 商高高 周建兵 朱云明 |
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| 作者单位： | 南京林业大学机械电子工程学院,江苏,南京,210037;江苏大学汽车与交通工程学院,江苏,镇江,212013;江苏大学汽车与交通工程学院,江苏,镇江,212013;南京跃进汽车集团,江苏,南京,211100 |
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| 摘 要： | 针对SOFIM发动机连杆螺栓出现的早期疲劳断裂现象，建立了连杆螺栓的有限元模型，利用有限元方法进行了该连杆螺栓的疲劳寿命分析，并与疲劳试验进行了对比。结果表明，该连杆螺栓杆部与头部的过渡圆弧处容易产生应力集中，造成其疲劳断裂。为此，提出了局部滚压的改进方法，经有限元分析，该改进措施可有效提高连杆螺栓的疲劳寿命。
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| 关 键 词： | 高强度连杆螺栓 疲劳寿命 有限元分析 |
| 文章编号： | 1000-2006(2005)05-0077-03 |
| 收稿时间： | 2004-09-01 |
| 修稿时间： | 2005-06-20 |
Fatigue Life Analysis of the High Strength Connecting Rod Bolt |
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| TIAN Jie,SHANG Gao-gao,ZHOU Jian-bin,ZHU Yun-ming.Fatigue Life Analysis of the High Strength Connecting Rod Bolt[J].Journal of Nanjing Forestry University(Natural Sciences ),2005,29(5):77-79. |
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| Authors: | TIAN Jie SHANG Gao-gao ZHOU Jian-bin ZHU Yun-ming |
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| Institution: | 1. College of Electronic and Mechanical Engineering Nanjing Forestry University, Nanjing 210037, China ; 2. School of Automobile and Transportation Engineering University of Jiangsu, Zhenjiang 212013, China; 3. Nanjing Yuejin Motor Group Ltd. ,Nanjing 211100,China |
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| Abstract: | Earlier fatigue failure phenomenon of SOFIM engine connecting rod bolt is concentred.After a finite element model was established,a finite element analysis and a fatigue test were carried out.The comparing result showed that the arc transition area between rod and head was easy to produce stress concentration which results in fatigue failure.In order to solve this problem,a extending fatigue life's method by rolling means was put forward.The finite element analysis showed that the method was reasonable and practicable. |
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| Keywords: | High strength connecting rod bolt Fatigue life Finite element analysis |
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