基于失效问题研究的某车型发动机舱盖撑杆强度优化设计
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- 英文论文题名：Optimization Design for the Hood Strut Strength of Automotive Based on the Failure Problem Research
- 论文作者：孙伟月 ; 楼巧笑 ; 马良策
- 英文论文作者：Sun Weiyue ; Lou Qiaoxiao ; Ma Liangce ; BAIC Motor Co. ; Ltd.R&D Center
- 年：2016
- 作者机构：北京汽车股份有限公司汽车研究院;
- 论文关键词：发动机舱 ; 盖撑杆 ; 强度 ; 钣金失效 ; CAE优化
- 英文论文关键词：hood strut ; strength ; panel failure ; CAE simulation
- 会议召开时间：2016-10-26
- 会议录名称：2016中国汽车工程学会年会论文集
- 英文会议录名称：Proceedings of 2016 SAE-China Congress
- 语种：中文
- 分类号：U463.833
- 学会代码：QCGC
- 会议名称：2016中国汽车工程学会年会暨展览会
- 会议地点：中国上海
- 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：1405k
- 原文格式：O
- 会议级别：全国
摘要
本文针对某车型开发时,发动机舱盖撑杆支撑点强度不足导致钣金变形开裂问题,利用CAE优化分析,揭示了支撑点强度不足的根本原因,提出了若干改进方案,并对不同方案进行了对比分析,确定了最终优化方案,并进行了实车验证,有效解决了某车型发动机舱盖撑杆支撑点强度不足问题。研究结果表明,调整发动机舱盖撑杆布置和支撑结构,减少发动机舱盖内板支撑孔尺寸,增加发动机舱盖内板安装面结构,可大幅降低支撑点处应力值,降低钣金失效风险。
Based on deformation and cracking problems of bracing spots on the strength insufficient Hood Strut during the Body Closure endurance test,the ultimate failure reasons are analyzed with CAE and several improvement solutions are proposed.Different solutions are compared to determine the final optimization,an effective solution to insufficient strength of the Hood Strut is settled and tested in endurance test The results show that regulating the disposal of Hood Strust and the bracing structure,reducing bracing hole size of the hood inner panel,increasing the fixing surface of the hood inner panel,significantly reduce the stress of bracing spots and the risk of panel failure.
Based on deformation and cracking problems of bracing spots on the strength insufficient Hood Strut during the Body Closure endurance test,the ultimate failure reasons are analyzed with CAE and several improvement solutions are proposed.Different solutions are compared to determine the final optimization,an effective solution to insufficient strength of the Hood Strut is settled and tested in endurance test The results show that regulating the disposal of Hood Strust and the bracing structure,reducing bracing hole size of the hood inner panel,increasing the fixing surface of the hood inner panel,significantly reduce the stress of bracing spots and the risk of panel failure.
引文
[1]叶雷,江波.合理约束机构自由度在汽车前舱支撑杆中的运用[C].芜湖:汽车内外饰产品及新材料应用国际研讨会,2009.
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[5]李燕龙,李峥,樊树军,等.SMC材料在某电动汽车发动机罩盖上的应用[J].汽车科技,2015(1):71-75.
[2]罗燕,刘明卓,张立玲.基于MSC Nastran的发动机舱盖支撑杆屈曲分析[J].计算机辅助工程,2013,22(S1):84-86.
[3]张晓霞,钟文生,姚远.初始挠度及中间弹性支撑对压杆稳定的影响分析[J].机械,2011,38(6):1-4.
[4]夏汤忠,王萍萍,余先祥,等.基于MSC.ADAMS/INSIGHT的发动机机罩撑杆动力学优化[C].大连:结构及多学科优化工程应用与理论研讨会,2009.
[5]李燕龙,李峥,樊树军,等.SMC材料在某电动汽车发动机罩盖上的应用[J].汽车科技,2015(1):71-75.