| 桑塔纳汽车后桥强度有限元分析及改进方案 |
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| 引用本文： | 陈立杰,谢里阳,李文辉,陈善华. 桑塔纳汽车后桥强度有限元分析及改进方案[J]. 汽车工程, 2004, 26(4): 488-491 |
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| 作者姓名： | 陈立杰 谢里阳 李文辉 陈善华 |
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| 作者单位： | 东北大学机械工程与自动化学院,沈阳,110004;上海大众汽车有限公司,上海,201805 |
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| 摘 要： | 根据桑塔纳2000汽车后桥的实际结构，利用通用有限元软件ANSYS，对后桥进行了弹塑性静态结构有限元分析。主要研究了结构焊接处强度、横梁破坏处在半个周期载荷波内应力状态变化；给出了在最大剪应变幅平面上，影响疲劳强度及寿命的基本参量的计算结果；提出了提高后桥强度的改进方案。
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| 关 键 词： | 汽车后桥 有限元分析 改进方案 疲劳强度 |
Finite Element Analysis and Improvement Scheme for Rear Axle of Santana Car |
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| Abstract: | A static elasto-plastic structural analysis for the rear axle of a Santana car is conducted,using FEA software ANSYS.In particular,the structural strength at welds and the stress variation at fracture spots of cross member during half a cycle of loading wave are studied.Using critical plane method,the basic parmaeters affecting fatigue strength and life are identified.The modification scheme for enhancing the strength of rear axle is proposed and verified by real vehicle testing. |
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| Keywords: | Vehicle rear axle Finite element analysis Improvement scheme Fatigue strength |
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