用于侧面碰撞保护的横向加载路径优化设计

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1、用于侧面碰撞保护的横向加载路径优化设计LateralLoadPathtoImproveSideImpactProtection(申请清华大学工学硕士学位论文)培养单位:汽车工程系学科:机械工程研究生:黄大明指导教师:周青教授二〇一五年十二月摘要汽车侧面碰撞安全性设计的一个主要挑战是控制侧面结构的侵入量，以降低乘员伤害风险。本文提出，将B柱和座椅之间的空间用一个传力结构填充，在B柱中央区域将碰撞力传递给座椅和车身结构，以降低侧面结构的侵入量。本文介绍了该传力结构的设计要求，并给出了一个概念设计。该结构不仅可以改善侧碰时的传力路径，还可设计成可伸缩结构，用作座椅扶手并满足人体工程

2、学的要求和改善舒适性。关键词：汽车侧面碰撞；侧面结构侵入；传力路径；人体工程学；座椅扶手IAbstractInvehiclesideimpactcollisions,sidestructureintrusionmustbecontrolledtoreducerisksofinjuriesandfatalitiestooccupants.ThisthesisproposesaddingastructuralmechanismbetweenB-pillarandseatframeasanadditionalloadpathtodistributepartialsideimpact

3、loadtotheseatframeandvehiclestructure,andtoreducesidestructureintrusion.Designrequirementsandaconceptualdesignaredescribed.Theaddedstructurecanalsoserveasanarmrestandisretraceableinordernottoeffectingressandegressofoccupant.TheCADresultshowsthatthenewmechanismdesigncanmeetthehumananthropome

4、tryandhumanergonomics’requirements.Andthemechanismisexpectedtoimprovetheloaddistributionundersideimpactandreducestructureintrusiontopassengercompartment.Keywords:SideImpact;Intrusion;LoadPath;Ergonomics;Armrest.IIContentsCHAPTER1INTRODUCTION..................................................

5、...........................11.1Background...................................................................................................11.2MotivationforResearch...............................................................................21.3Objectives.................................

6、....................................................................3CHAPTER2LITERATUREANDTECHNICALREVIEW.................................52.1CurrentDesign..............................................................................................52.1.1Introduction........................

7、...............................................................52.1.2SideStructures...................................................................................52.1.3Seats.............................................................................