安全带固定点强度仿真精度分析及过法规优化
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摘要
针对GB14167—2013下,座椅安全带固定点试验过法规困难且增重较多的现象,对安全带固定点有限元模型的仿真精度进行探究,旨在以提高仿真精度的方式来指导过法规优化方案的制定。探究了卷收器建模方式、单元积分类型及分布对仿真精度的影响,并建立了可信度较高的某商用车安全带固定点强度分析有限元模型。通过对传统模型中单元类型及分布进行优化,在保证计算效率的同时,使仿真精度得到较大提高。最终,基于座椅的薄弱部件进行结构优化,使其满足国家法规要求,且仿真结果与试验结果基本吻合。
With the implementation of new regulation( GB14167—2013),the requirement of seat belt anchorage experiment is difficult to satisfy,meanwhile,the increase of the weight is usually inevitable. In order to pass the new regulation,aims to improve the accuracy of the simulation to guide the optimization design. The influences of modeling method of retractor as well as the integration type and distribution of the element on the simulation accuracy have been studied,a more reliable simulation model for the strength of the x-commercial vehicle seat belt anchorage is set up,modeling of seat belt anchorage strength. Through the optimizing of elements type and distribution in the traditional model,the simulation accuracy has been improved significantly with consideration to the efficiency of calculation. Finally,the structure optimization of the weak parts has been carried out to meet the requirements of national regulation,the simulation results are in good agreement with the experiment.
With the implementation of new regulation( GB14167—2013),the requirement of seat belt anchorage experiment is difficult to satisfy,meanwhile,the increase of the weight is usually inevitable. In order to pass the new regulation,aims to improve the accuracy of the simulation to guide the optimization design. The influences of modeling method of retractor as well as the integration type and distribution of the element on the simulation accuracy have been studied,a more reliable simulation model for the strength of the x-commercial vehicle seat belt anchorage is set up,modeling of seat belt anchorage strength. Through the optimizing of elements type and distribution in the traditional model,the simulation accuracy has been improved significantly with consideration to the efficiency of calculation. Finally,the structure optimization of the weak parts has been carried out to meet the requirements of national regulation,the simulation results are in good agreement with the experiment.
引文
[1]胡世博.一种汽车后排座椅的有限元仿真分析[D].长春:吉林大学,2014.
[2]曹奇,成艾国,周泽,等.汽车座椅安全带固定点强度试验仿真模型改进[J].中国机械工程,2012,23(14):1707-1711.
[3]WANG L,YANG M,ZHENG H,et al.Analysis of Automotive Seat Belt Anchorage Strength Based on ABAQUS[J].Bus&Coach Technology&Research,2013,32(2):52-54.
[4]HEO U,KIM S K,SONG M J,et al.Effectiveness Evaluation for Seat Parts by Seat Belt Anchorage Strength Analysis[J].International Journal of Precision Engineering&Manufacturing,2011,12(6):1031-1034.
[5]卢永华.显式/隐式计算方法在座椅运动部件分析中的应用研究[D].杭州:浙江工业大学,2013.
[6]谢斌.汽车正碰有限元仿真分析精度影响因素研究[D].长沙:湖南大学,2011.
[7]荣兵,门永新,赵鹏程,等.某车型安全带固定点强度分析及优化.2013中国汽车工程学会年会[C].上海:中国汽车工程学会学术委员会,2013:163-167.
[8]路家傲.汽车安全带固定点强度分析[D].沈阳:沈阳工业大学,2016.
[9]PATIL K.Optimization of Seatbelt Anchorage Mount Locations for Occupant Injury Reduction in Frontal Crash[J].Dermatologic Surgery,2006,32(32).
[10]PATLU S.Occupant restraint modeling:seat belt design[J].Critical Care Medicine,2004,32(32).
[11]肖永富,王雁飞,徐中皓,等.基于LS-Dyna的某商用车座椅安全带固定点强度分析.2015中国汽车工程学会年会[C].上海:中国汽车工程学会学术委员会,2015.
[12]张君媛,黄炫,田迪斯,等.汽车正撞时后排座椅安全性的CAE分析与改进设计[J].汽车工程,2011,33(9):767-771.
[13]PATALAK J,GIDEON T.Development and Implementation of a Quasi-Static Test for Seat Integrated Seat Belt Restraint System Anchorages[J].Water Resources Research,2015,42(9):2006.
[14]陈光南,胡世光.成形极限曲线的新概念[J].机械工程学报,1994,30(4):82-85.
[2]曹奇,成艾国,周泽,等.汽车座椅安全带固定点强度试验仿真模型改进[J].中国机械工程,2012,23(14):1707-1711.
[3]WANG L,YANG M,ZHENG H,et al.Analysis of Automotive Seat Belt Anchorage Strength Based on ABAQUS[J].Bus&Coach Technology&Research,2013,32(2):52-54.
[4]HEO U,KIM S K,SONG M J,et al.Effectiveness Evaluation for Seat Parts by Seat Belt Anchorage Strength Analysis[J].International Journal of Precision Engineering&Manufacturing,2011,12(6):1031-1034.
[5]卢永华.显式/隐式计算方法在座椅运动部件分析中的应用研究[D].杭州:浙江工业大学,2013.
[6]谢斌.汽车正碰有限元仿真分析精度影响因素研究[D].长沙:湖南大学,2011.
[7]荣兵,门永新,赵鹏程,等.某车型安全带固定点强度分析及优化.2013中国汽车工程学会年会[C].上海:中国汽车工程学会学术委员会,2013:163-167.
[8]路家傲.汽车安全带固定点强度分析[D].沈阳:沈阳工业大学,2016.
[9]PATIL K.Optimization of Seatbelt Anchorage Mount Locations for Occupant Injury Reduction in Frontal Crash[J].Dermatologic Surgery,2006,32(32).
[10]PATLU S.Occupant restraint modeling:seat belt design[J].Critical Care Medicine,2004,32(32).
[11]肖永富,王雁飞,徐中皓,等.基于LS-Dyna的某商用车座椅安全带固定点强度分析.2015中国汽车工程学会年会[C].上海:中国汽车工程学会学术委员会,2015.
[12]张君媛,黄炫,田迪斯,等.汽车正撞时后排座椅安全性的CAE分析与改进设计[J].汽车工程,2011,33(9):767-771.
[13]PATALAK J,GIDEON T.Development and Implementation of a Quasi-Static Test for Seat Integrated Seat Belt Restraint System Anchorages[J].Water Resources Research,2015,42(9):2006.
[14]陈光南,胡世光.成形极限曲线的新概念[J].机械工程学报,1994,30(4):82-85.