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本科生毕业设计（论文）I摘要汽车座椅结构设计对汽车驾乘者的舒适感有着很大影响,要求座椅的设计者要在设计产品的时候能充分将人的因素、产品使用的环境因素科学地运用在一起。同时，汽车座椅系统也是保障车辆安全性能的一部分，其结构设计、材料应用的合理性及其质量直接影响到乘员的安全性。由于轿车座椅的特殊性，因此对其舒适性和安全性要求都较高。随着科学技术的发展和生产力的提高，人们对工作、生活、休息质量的要求不断提高，以前的那种从产品到人的产品设计模式己不能满足日益丰富的工业产品的生产以及广大消费者对工业品的期望。这就要求产品设计者在设计产品的时候能充分将人的因素、产品使用的环境因素甚至整个社会的文明文化合理地、科学地运用其中。在设计中必须始终将人的因素贯穿在整个设计的得始终。本毕业设计分析了人与座椅的人机关系，并结合我国国民对汽车座椅的使用要求，以人机工程学、汽车设计等学科的理论为依据，以国家和国际标准为准则，对驾驶座椅进行了综合研究。关键词：座椅系统；结构设计；人机工程学；静力分析本科生毕业设计（论文）IIAbstractThedesignofvehicleseatframehasgreateffectonthecomfortofthepeopleinvehicle,itrequiresthedesignertocombinehumanfactorsandtheproduct’sworkingenvironment,andusethemscientificallyandadequately.Meanwhile,thevehicleseatsystemisalsoapartofvehiclesecurityelements,therationalityandqualityofitsframeandmaterialdirectlyaffectthesecurityofthepeopleinvehicle.Becauseoftheparticularityofcar,itismoreimportantforitsseattobecomfortableandsafe.Withdevelopmentandimprovementofproductivityofscienceandtechnology,people’srequestofqualityofworking,living,andrelaxationraiseconstantly,formerproductdesignmodethatfromproductstopeoplethatalreadycan’tsatisfiedthemanufactureofabundantindustryproductionandthemassesofconsumerofindustrialproductsdaybydayexpectation.Thisrequiresproductsdesignercantakethehumanafactorwhendesigntheproducts,environmentalfactorthattheproductsbeingused,thecivilizationcultureoftheevenwholesocietyintoaccountrationally,scientifically.Mustisitdesignhumanfactorentirelytorunthroughallthetimeindesign.Thisdesignanalyzedtheergonomicsrelationshipbetweenhumanandvehicleseat,combinedthecountry’sdemandonvehicleseat,andmadeageneralresearchonvehicleseatbasedonergonomicsinvehicleengineering,vehicledesign.etc,andthenational&internationalstandard.Keywords：seatsystem;framedesign;ergonomics;staticanalysis本科生毕业设计（论文）III目录第1章绪论..........................................................................................................11.1本毕业设计的研究意义和内容...............................................................11.2轿车座椅的功能和设计要求...................................................................21.2.1轿车座椅的作用............................................................................21.2.2轿车座椅的设计要求....................................................................21.3轿车座椅的结构.......................................................................................21.4CATIA软件................................................................................................31.4.1CATIA软件的介绍.........................................................................31.4.2CATIA软件在本毕业设计的应用.................................................3第2章轿车座椅的设计基础................................................................................42.1人机工程学在轿车座椅设计中的应用...................................................42.1.1坐姿与座椅....................................................................................42.1.2舒适坐姿的生理特征....................................................................42.1.3体压分布与坐姿疲劳....................................................................62.2座椅主要部件的功能及结构要求...........................................................7第3章轿车座椅外形尺寸参数的确定..............................................................103.1人体尺寸的研究.....................................................................................103.1.1人体静态尺寸..............................................................................103.1.2人体H点的确定..........................................................................103.2工作座椅的设计要求.............................................................................113.3轿车座椅主要外形参数及R点的确定.................................................123.3.1轿车座椅外型尺寸主要参数......................................................123.3.2轿车座椅R点的确定..................................................................133.3.3轿车驾驶员座椅外观尺寸图......................................................13第4章轿车驾驶员座椅骨架结构设计..............................................................154.1轿车驾驶员座椅骨架主要结构尺寸.....................................................154.2轿车驾驶员座椅调节机构的结构设计和计算.....................................164.2.1前后调节机构的工作原理和相关计算......................................164.2.2高度调节机构的工作原理和相关计算......................................174.2.3角度调节机构的工作原理..........................................................18本科生毕业设计（论文）IV4.3轿车驾驶员骨架整体结构.....................................................................19第5章座椅骨架静强度分析..............................................................................205.1有限元算法在汽车座椅安全性研究中的应用.....................................205.2轿车座椅的强度要求.............................................................................205.2.1座椅的静强度..............................................................................215.2.2座椅的冲击强度..........................................................................225.2.3座椅的疲劳强度..........................................................................225.3确定需要分析的部件.............................................................................225.4对座椅靠背骨架进行静强度分析.......................................