搜索
题目：依维柯S45-10型柴油机结构设计姓名：班级学号：指导教师：毕业论文（设计）用纸佳木斯大学教务处第I页摘要针对车用柴油机的特点：柴油机具有热效率高、燃料经济性好、排气净化指标好、工作可靠性和耐久性好，功率使用范围宽等优点，因此被广泛应用于农用动力，拖拉机、载重汽车、工程机械、内燃机车、船舶等方面。设计高性能柴油机已经成为内燃机的发展趋势之一。本课题对依维柯S45-10型柴油机进行总体结构设计。首先根据给定的原始数据，确定柴油机的基本结构形式，然后进行了热力计算，应用热力计算的结果绘制柴油机的理论示功图和实际示功图。其次通过动力计算绘制主要零件的积累扭矩图和相应磨损图，对活塞和连杆进行了相应强度校核，使其能够满足设计的要求。最后绘制纵剖和横剖图来展示结构设计的结果。在本课题设计过程中对其动力性、经济性以及排放性能进行有效分析，进行相应改进，提高其使用性能，使本课题设计的柴油机能够更好的适应现代车辆的需要。关键词：柴油机；结构设计；热力计算；动力计算；强度校核毕业论文（设计）用纸佳木斯大学教务处第II页AbstractForthecharacteristicsofdieselengine:dieselenginewithhighthermalefficiency,fueleconomyiswell,goodexhaustpurificationtargets,operationalreliabilityanddurability,theadvantagesofusingthewiderangeofpower,itiswidelyusedinagriculturalpower,tractor,truck,engineeringmachinery,diesellocomotives,shipsandsoon.Designhigh-performancedieselenginedevelopmenthasbecomeoneofthetrends.ThesubjectoftheIvecoS45-10dieselenginefortheoverallstructuraldesign.Firstofall,accordingtothegivenrawdata,todeterminethebasicstructureoftheengine,thenthethermodynamiccalculation,theresultsofthermalcalculationappliedthetheoryofdrawingengineindicatordiagramandtheactualdynamometer.Second,powercalculationsbydrawingthemainpartsoftheaccumulatedtorquemapandthecorrespondingwearmap,thepistonandconnectingrodtothecorrespondingstrengthchecktoenableittomeetthedesignrequirements.LastDrawverticalandhorizontalprofilecontrolorthographicdrawingstoshowtheresultofstructuraldesign.Inthistopicthroughoutthedesignprocess,power,economyandemissionsperformanceforeffectiveanalysis,withcorrespondingimprovementstoenhancetheuseofperformance,sothatthesubjectdesigntobetteradapttothemoderndieselenginevehiclesisrequired.Keywords:Dieselengine;Structuraldesign;Thermalcalculation;Powercalculation;Intensityexamination毕业论文（设计）用纸佳木斯大学教务处目录摘要..............................................................................................................................IAbstract.............................................................................................................................II第1章绪论......................................................................................................................11.1本课题研究的意义和目的...........................................................................................11.2本课题目前在国内外的发展趋势...............................................................................11.3本课题研究的内容.......................................................................................................21.4本章小结.......................................................................................................................2第2章依维柯S45-10型柴油机总体结构设计过程....................................................32.1本课题设计任务...........................................................................................................32.2依维柯S45-10型柴油机实际循环热力计算..............................................................32.2.1热力计算的目的.......................................................................................................................32.2.2热力计算的方法.......................................................................................................................42.2.2.1确定依维柯S45-10型发动机的结构型式.......................................................................42.2.2.2原始参数的选择.................................................................................................................52.2.3依维柯S45-10型柴油机连杆的强度校核..............................................................................72.2.3.1连杆小头的强度校核.........................................................................................................72.2.3.2连杆的主要技术要求.......................................................................................................132.3本章小结.....................................................................................................................15第3章依维柯S45-10型柴油机结构改进设计分析..................................................163.1机体.............................................................................................................................163.2高压共轨喷射系统.....................................................................................................163.3润滑系统.....................................................................................................................173.4气缸盖.........................................................................................................................173.4.1设计要求.................................................................................................................................173.4.2基本结构形式及布置.............................................................................................................183.5排放系统.....................................................................................................................183.5.1微粒捕集器.............................................................................................................................193.5.2加装氧化型催化转化器......................................................