基于仿真及试验的动力总成悬置失效分析和改进
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- 英文论文题名：Analysis and Improvement for the Failure of Powertrain Mount Based on Simulation and Experiment
- 论文作者：周国均 ; 门永新 ; 荣兵 ; 赵鹏程 ; 冯擎峰
- 英文论文作者：Zhou Guojun Zhao Pengcheng Rong Bing Men Yongxin Feng Qingfeng Zhejiang Geely Automobile Institute CO.LTD
- 年：2013
- 作者机构：浙江吉利汽车研究院有限公司;
- 论文关键词：悬置失效 ; 数值模拟 ; 改进设计
- 英文论文关键词：Mounting failure ; Numerical simulation ; Improved design
- 会议召开时间：2013-11-26
- 会议录名称：2013中国汽车工程学会年会论文集
- 英文会议录名称：Proceedings of 2013 SAE-China Congress
- 语种：中文
- 分类号：U464.13
- 学会代码：QCGC
- 会议名称：2013中国汽车工程学会年会
- 会议地点：中国北京
- 主办单位：中国汽车工程学会
- 学会名称：中国汽车工程学会
- 页数：5
- 文件大小：1935k
- 原文格式：O
- 会议级别：全国
摘要
针对某车型悬置螺栓断裂而导致悬置总成失效问题,应用有限元进行数值模拟和改进设计。首先,对悬置螺栓断裂实物进行初步推断,同时在有限元软件里对断裂工况进行模拟再现,通过对比分析结果与实物破坏的一致性,验证了CAE分析的正确性,在此基础上,通过优化悬置支架结构改善螺栓受力情况,以提高悬置整体承载能力。结果表明改进方案强度满足设计要求,并运用于实车后无失效情况。
To solve the mounting assembly failure caused by bolt fracture of a particular vehicle,the numerical simulation is performed using the FEA to improve the design.First of all,the preliminary inference is done with regard to actually broken mounting bolt.Meanwhile,the fracture behavior is simulated using the FEA.By comparison,the correctness of CAE analysis is verified based on consistency between simulation result and test result On this basis,the mounting bracket structure is optimized to enhance bolt stress, thus improving overall bearing capability of mounting.The result shows that the optimized strength can meet design requirements.No failure occurs after application in actual vehicle.
To solve the mounting assembly failure caused by bolt fracture of a particular vehicle,the numerical simulation is performed using the FEA to improve the design.First of all,the preliminary inference is done with regard to actually broken mounting bolt.Meanwhile,the fracture behavior is simulated using the FEA.By comparison,the correctness of CAE analysis is verified based on consistency between simulation result and test result On this basis,the mounting bracket structure is optimized to enhance bolt stress, thus improving overall bearing capability of mounting.The result shows that the optimized strength can meet design requirements.No failure occurs after application in actual vehicle.
引文
[1]刘纪丙.乘用车动力总成悬置系统开发.[J].轻型汽车技术,2012(1),29.
[2]单辉祖,谢传锋.工程力学(静力学与材料力学) ??[M].高等教育出版社,2004:294-296.
[3]李明善.机械设计基础.高等教育出版社,2005:177
[2]单辉祖,谢传锋.工程力学(静力学与材料力学) ??[M].高等教育出版社,2004:294-296.
[3]李明善.机械设计基础.高等教育出版社,2005:177