摘要本设计在市面上现有校车基础上，设计出以天然气为动力的，幼儿园专用校车。在保证安全的基础上，使用天然气动力可更节省能源，对环境友好。设计部件尺寸严格按照国家标准，以安全，舒适为基础目标，从基础的结构安全升级到多层安全保护圈，全方位提升校车安全性，让学童安全出门安全到家。校车不同于普通客车设计，他的乘客是未成年人，人体尺寸更小，安全需求更高，在人机工程方面应以幼童为目标设计。同时行驶安全，行李舱设计也要满足未成年热需求。外观方面，应采用更多圆角及鲜艳的颜色，更符合未成年人的心理需求。同时应用CAE分析软件hypermesh进行仿真，模拟实际情况来验证设计。关键词：校车设计；有限元方法；模态分析19NaturalGasPoweredKindergartenSchoolBusesAbstractThisdesignisbasedontheexistingschoolbusinthemarketanddesignedaspecialschoolbuspoweredbynaturalgas.Onthebasisofensuringsafety,theuseofnaturalgaspowercansaveenergyandbeenvironmentallyfriendly.Thedimensionsofthedesigncomponentsarestrictlyinaccordancewiththenationalstandards,withsafetyandcomfortasthebasicgoals,andthesafetyupgradefromthebasicstructuretothemulti-layersafetyprotectionringtoenhancethesafetyofschoolbusesinanall-roundwaysothatthechildrencansafelygohomesafely.Theschoolbusisdifferentfromtheordinarypassengercardesign.Hispassengersareminors,thehumanbodyissmallerinsize,andthesafetyneedsarehigher.Intermsofergonomics,thedesignshouldaimatyoungchildren.Atthesametimedrivingsafety,baggagecompartmentdesignmustalsomeettheminorheatdemand.Appearance,shouldusemoreroundedandbrightcolors,moreinlinewiththepsychologicalneedsofminors.SimultaneouslyapplytheCAEanalysissoftwarehypermeshtosimulateandsimulatetheactualsituationtoverifythedesign.KeyWords：SchoolBusDesign;FEM;ModalAnalysis目录摘要.........................................................................................................................................IAbstract......................................................................................................................................II一、文献综述.............................................................................................................................11.设计背景...........................................................................................................................12.设计思路...........................................................................................................................13.设计前准备..............................................................................................................................11.3.1国家法规.....................................................................................................................11.3.2应用软件.....................................................................................................................21.SiemensNX软件.......................................................................................................22.HyperMesh软件.......................................................................................................2二、客车设计.............................................................................................................................32.1客车形式的选择............................................................................................................32.1.1客车轴数.....................................................................................................
