CRH2型高速动车组车辆车体结构总体设计

【精品文档】XX工程学院车辆工程系本科毕业设计（论文）题目：CRH2型高速动车组车辆车体结构总体设计专业：机械设计制造及其自动化（城市轨道车辆）班级：城轨081学号：215080301学生姓名：指导教师：副教授起迄日期：2012.3～2012.6设计地点：车辆工程实验中心【精品文档】摘要随着科技和生活水平的提高，城市之间的距离越来越小，高速动车作为一种新的交通工具，正逐步代替原有的交通。本文对CRH2型200km/h的高速动车组车体结构进行了总体设计。根据国内外高速动车的发展概况和最新研究成果，以及为实现列车车体气密性和轻量化为目的，完成了CRH2型动车组的车体结构总体设计。基本编组方案采用2动2拖，整车由8辆车组成，主要对头车车体进行了详细研究。首先，是对车体的材料选择，经过对耐候钢，不锈钢和铝合金的比较可以看得出，采用铝合金是最合适的。它可以降低车重，提高车辆加速度，降低运能消耗、牵引及制动能耗，减轻了对线路的磨耗及冲击,扩大了运输能力。其次是对车体的结构进行选择，主要以双壳结构为主，并引入了模块化的概念，把铝合金车体分成若干模块，包块底架模块，侧墙模块，车顶模块，端部模块和车体附件等五大部分，每一种模块单独加工，互不影响。最后把所有模块整合在一起，组成铝合金车体。关键词：车辆工程；高速动车组；车体；铝合金【精品文档】ABSTRACTWiththetechnologyandtheimprovementoflivingstandards,thedistancebetweenthecitiesgettingshorterandshorter.High-speedEMUasanewmeansoftransportisreplacingtheexistingtrafficgradually.Thispaperintroducesthedesignofoverallbodystructurefor200km/hofCRH2EMU.Accordingtothedevelopmentoverviewandthelatestresearchresultsofdomesticandforeignhigh-speedEMUs,aswellastoachievetheairtightnessandweightoftrainforpurpose,completingthedesignofoverallbodystructureforthe200km/hEMU.2M2Tisselectedasthebasicformationprogramandit’smadeupofeightvehicles,mainlytakingsomestudyontherivalcarbody.Firstofall,thechoiceofbodymaterial,comparedwithweatheringsteel,stainlesssteelandaluminumalloy,aluminumalloyisthemostsuitable.Itcanreducethevehicleweightandimprovevehicleacceleration.Italsocanreduceconsumptionoftransportcapacity,tractionandbraking,andevencanreducewearonthelineandtheimpact,expandthetransportcapacity.Secondly,choosethestructureofthebody,mainlydouble-shellstructure.Itintroducesthemodularconcept,thealuminumalloybodyistobedividedintoseveralmodules,includingblockchassismodules,side-wallmodules,roofmodules,theendmodulesandannextothebottomofvehicle,eachmoduleprocessesseparately.Finally,formthealuminumalloybodywithallmodulestogether.Keywords:VehicleEngineering;High-speedEMU;Bodystructure;Aluminumalloy【精品文档】目录第一章绪论............................................................................................11.1选题背景与意义..............................................................................................11.2世界各国高速铁路发展概况..........................................................................11.3模块化铝合金车体发展现状...........................................................................31.3.1动车车体模块化概念............................................................................31.3.2车体材料的选用....................................................................................31.4主要研究内容及本文结构..............................................................................51.4.1主要研究内容........................................................................................51.4.2本文结构................................................................................................5第二章CRH2动车组介绍....................................................................72.1编组..................................................................................................................72.2主要技术参数..................................................................................................72.3其余参数..........................................................................................................82.3.1车门.........................................................................................................82.3.2座椅.........................................................................................................92.3.3车窗.........................................................................................................92.4设计标准..........................................................................................................9第三章高速动车车体结构设计..........................................................103.1概述................................................................................................................103.1.1车体承载结构特点...............................................................................103.1.2车体用铝合金材料...............................................................................103.2车体轻量化....................................................................................................113.2.1轻量化的目的......................................................................................113.2.2车体轻量化的主要措施......................................................................113.3动车组车体结构............................................................................................123.3.1国外典型的铝合金车体结构..............................................................123.3.2单壳车体和双壳车体的比较...............................................................153.3.3断面结构的选择..................................................................................173.4动车组车体的结构组成.................................................................................183.4.1底架.......................................................................................................19【精品文档】3.4.2侧墙......................................................................................................203.4.3车顶...........