乘用车座椅的设计摘要：随着现代经济的飞速发展，汽车成为人们生活的必需品，人们对汽车的舒适性和安全性有了更高的要求，座椅是影响汽车的舒适性和安全性主要的一部分，本文通过对乘用车座椅的结构、性能、设计要求等对座椅的乘坐舒适性进行分析—建模—数据分析—设计—评估；对安全性进行分析—建模—试验—结果分析—设计，安全带作为座椅安全的主要配置，提出在车上装配安全气囊的情况下，安全带在一定条件下的断裂及座椅在一定条件下的移动变形，更有助于对乘员的保护。进而提出在综合考虑与安全气囊匹配的情况下，安全带该断就断、座椅该动就动的新的设计理念，最后介绍了CAD在座椅设计中的应用。关键词：舒适性；安全性；人机工程学；CADTheDesignOfPassengerSeatsAbstract：Withtherapiddevelopmentofmoderneconomy,carhasbecomeanecessityforpeople'slives,People'scarcomfortandsafetyhavehigherrequirements,Affectingthecarseatcomfortandsafetyofthemainpartofthispaper,thestructureofthepassengerseat,performance,designrequirements,suchasseatingcomfortanalysis-modeling-dataanalysis-Design-Evaluation;ofsecurityanalysis-Modeling-Testing-Analysis-Design,safetyseatbeltsasthemainconfiguration,theairbagassemblyinthevehicle,theseatbeltsundercertainconditions,andtheseatofthefractureundercertainconditions,themovementanddeformation,butalsocontributetotheprotectionofthecrew.Proposedtoconsiderthematchingwiththeairbag,theseatbeltonthebrokenoff,seatsthatmoveonthedynamicnewdesignconcept,andfinallyintroducedintheseatdesignofCADapplications.Keywords：comfort;safety;ergonomics;CAD目录1绪论.........................................................................................................................11.1乘用车座椅的结构..................................................................11.4座椅的设计要求.........................................................................31.5本文研究的目的和意义....................................................32乘用车座椅的乘坐舒适性...........................................................42.1乘用车座椅的静态舒适性.............................................42.1.1舒适乘坐姿势.....................................................................42.1.2合理的体压分布..............................................................42.1.3驾驶姿势的舒适角.......................................................52.1.4良好的横向稳定性.......................................................52.2乘用车座椅的动态舒适性.............................................52.3乘用车座椅乘坐动态舒适性评价方法..........62.4乘坐舒适性数评估..................................................................72.4.1乘坐舒适性数R(用经验公式)...............................83乘用车座椅舒适性的设计与优化......................................93.1座椅的振动参数选择...........................................................93.1.1座椅的振动参数..............................................................93.1.2座椅的传递特性...........................................................103.2座椅相对阻尼系数的选择......................................113.2.1座椅刚度的选择....................................................113.3座椅可变刚度设计..............................................................113.3.1座椅减振系统弹簧刚度的设计.................113.3.2两种方案车载试验曲线......................................133.4座椅的人机工程分析.......................................................143.4.1坐姿的生理形态.....................................
