基于新安全带固定点法规的座椅结构布置
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- 英文论文题名：Structure Layout and Optimization of an Intermediate Seat Based on the Strength Requirement in the New Laws
- 论文作者：尹磊 ; 申涛 ; 李杨 ; 陈翼华
- 英文论文作者：Yin Lei ; Shen Tao ; Li Yang ; Chen Yihua ; Commerical Vehicle Division ; Chongqing Changan Automobile Co. ; Ltd
- 年：2016
- 作者机构：重庆长安汽车股份有限公司商用车事业部;
- 论文关键词：安全带固定点 ; 三点式安全带 ; 减重 ; 灵敏度
- 英文论文关键词：safety belt fixed point ; three point safety belt ; structural arrangement ; weight loss
- 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：U463.836
- 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：1536k
- 原文格式：O
- 会议级别：全国
摘要
本文以某M1商用车为研究对象,针对基于传统座椅进行简单改进无法满足新法规强度要求的问题,探讨了中间座椅在满足新法规强度要求下的结构布置。基于传力路径对关键结构进行优化后,座椅仅增重0.18kg,但变形却显著减小,靠背最大前向位移由433.1mm减小至104.3mm,与RC平面的距离为235.7mm;最大有效塑性应变也由0.56减小至0.163,各部件不存在失效风险,满足法规要求。优化方案的法规实验表明:仿真与实验结果的吻合度较高,座椅安全带上固定点的前向位移仅相差8.7mm,前后支撑脚、两安全带下锚点以及车身地板的变形模式及大小均与实验基本保持一致。因此,基于传力路径的座椅结构布置是实现座椅轻量化的有效途径。
Aiming at a Ml commercial vehicle,the structural arrangement for middle seat has been explored in this paper because a simple improvement based on the traditional seat cannot meet the strength requirements of the newly implemented three point safety belt regulation.The optimization of key structures basing on the load transfer path reduces the deformation of seat significantly,which only increases the weight of 0.18 kg.The maximum forward displacement of backrest is reduced from 502 mm to 157 mm,and the distance between the backrest and the RC plane is 370 mm which meets the national regulatory requirements of GB14167-2013.Furthermore,the maximum effective plastic strain of seat decreased from 0.57 to 0.17,which mean that all the parts here do not have the risk of failure.Regulatory experiments on the optimized seat show that the results of simulation and experiment are highly consistent with each other.There was only 7.8mm difference for the maximum forward distance of the up anchorage point of safety belt.Moreover,the deformation mode and size of the front and rear supporting legs,two low anchorage points of safety belt and rear floor are consistent with the experiment basically.Therefore,it can be concluded that the structure layout based on the load transfer path is the effective ways to realize the light weight of the seat.
Aiming at a Ml commercial vehicle,the structural arrangement for middle seat has been explored in this paper because a simple improvement based on the traditional seat cannot meet the strength requirements of the newly implemented three point safety belt regulation.The optimization of key structures basing on the load transfer path reduces the deformation of seat significantly,which only increases the weight of 0.18 kg.The maximum forward displacement of backrest is reduced from 502 mm to 157 mm,and the distance between the backrest and the RC plane is 370 mm which meets the national regulatory requirements of GB14167-2013.Furthermore,the maximum effective plastic strain of seat decreased from 0.57 to 0.17,which mean that all the parts here do not have the risk of failure.Regulatory experiments on the optimized seat show that the results of simulation and experiment are highly consistent with each other.There was only 7.8mm difference for the maximum forward distance of the up anchorage point of safety belt.Moreover,the deformation mode and size of the front and rear supporting legs,two low anchorage points of safety belt and rear floor are consistent with the experiment basically.Therefore,it can be concluded that the structure layout based on the load transfer path is the effective ways to realize the light weight of the seat.
引文
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[7]许早龙,范朝兵,廖善权,等.基于LS-DYNA的汽车安全带固定点强度研究[J],力学与实践,2010,32(3):105-110.
[8]金正男.轿车后排座椅系统有限元仿真分析研究[D].长春:吉林大学,2012.
[9]付奇.基于有限元方法的汽车座椅静强度分析和结构优化[D].长春:吉林大学,2004.
[10]卢建志,杨世.汽车座椅结构的轻量化设计[J].机械工程与自动化,2011(1):72-74.
[11]中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB 14167—2013,汽车安全带固定点[S].北京:中国标准出版社,2007.
[2]钟志华,张维刚,曹立波,等.汽车碰撞安全技术[M].北京:机械工业出版社,2008.
[3]迟瑞丰,侯文彬,胡平.接头在车身结构概念设计阶段对刚度的影响[J].机械设计与制造,2009,(11):180-181.
[4]徐中明,郝炜雅,张志飞,等.汽车座椅强度及碰撞仿真分析[J].重庆大学学报,2009,32(5):512-515.
[5]杜子学,文孝霞.汽车安全带固定点强度分析与优化[J].重庆交通大学学报,2004,23(5):99-101.
[6]韩淑洁.基于有限元的汽车安全带固定点的优化设计[J].机械工程与自动化,2011,(6):56-58.
[7]许早龙,范朝兵,廖善权,等.基于LS-DYNA的汽车安全带固定点强度研究[J],力学与实践,2010,32(3):105-110.
[8]金正男.轿车后排座椅系统有限元仿真分析研究[D].长春:吉林大学,2012.
[9]付奇.基于有限元方法的汽车座椅静强度分析和结构优化[D].长春:吉林大学,2004.
[10]卢建志,杨世.汽车座椅结构的轻量化设计[J].机械工程与自动化,2011(1):72-74.
[11]中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB 14167—2013,汽车安全带固定点[S].北京:中国标准出版社,2007.