| 重卡车架大梁开裂失效分析 |
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| 引用本文： | 刘胜,冯继军,卢柳林,赵佳奇. 重卡车架大梁开裂失效分析[J]. 汽车科技, 2014, 0(6): 61-65 |
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| 作者姓名： | 刘胜 冯继军 卢柳林 赵佳奇 |
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| 作者单位： | 东风商用车有限公司技术中心工艺研究所,武汉,430056 |
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| 摘 要： | 某重型卡车出现车架大梁开裂的失效事件。采用宏、微观分析方法,并结合有限元分析对开裂的车架大梁进行了检测和分析。结果表明,车架大梁的开裂原因是用户严重超载且同时在恶劣路况下行驶导致的疲劳开裂,解决问题的对策是对车架大梁易开裂部位进行优化设计,增加大梁加强板厚度,提高大梁的强度和可靠性。
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| 关 键 词： | 车架大梁 疲劳 有限元分析 |
Failure Analysis on the Causes of Frame Fracture of Heavy Truck |
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| LIU Sheng,FENG Ji-jun,LU Liu-lin,ZHAO Jia-qi. Failure Analysis on the Causes of Frame Fracture of Heavy Truck[J]. Automobile Science and Technology, 2014, 0(6): 61-65 |
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| Authors: | LIU Sheng FENG Ji-jun LU Liu-lin ZHAO Jia-qi |
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| Affiliation: | ( Dongfeng Commercial Vehicle Ltd., Technology Research Institute, Wuhan 430056, China ) |
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| Abstract: | The case that frame fracture has been found in a certain heavy truck was analyzed by means of fracture feature, metallographic structure, mechanical property and finite element analysis. The results show that the serious overloading of heavy truck which was driven on bad road leads to fatigue fracture of frame. Such problem would be resolved by the optimization of the vehicle frame and thicken the reinforcing plate. |
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| Keywords: | vehicle frame fatigue finite element analysis |
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