2019重型载货汽车总体设计说明书

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1、重型载货汽车总体设计说明书　　青岛理工大学课程设计　　汽车设计课程设计说明书　　题目：重型载货汽车总体设计姓名：严炳炎学号：20XX24267　　同组者：孔祥生、席昌钱、余鹏、李朋超、郑大伟　　专业班级：09车辆工程2班指导教师：王丰元、邹旭东、李树成设计时间：20XX.　　青岛理工大学课程设计　　目录　　设计任务书··························································3第1章、汽车形式和主要参数的初步确定·······························4　　一、汽车形式

2、的选择············································4、汽车轴数················································4、驱动形式·················································4、布置形式················································4二、汽车主要参数的选择··········································5、汽车主要尺寸参数的确

3、定··································5、汽车质量参数的确定·······································6、汽车质量参数的确定·······································6、轴荷分配················································7　　第2章整车主要性能参数的确定和计算·································8　　一、发动机的选择·······················

4、························8发动机最大功率及其转速的确定·······························8发动机最大转矩及其转速的确定·······························8发动机主要参数·············································8二、配置大柴BA6M1013-28E3发动机的整车性能计算·················10汽车动力性能计算········································10汽车的加速性能计

5、算······································12三、轮胎的选择·················································12四、汽车重要性能参数和车身造型图······························13第3章、总体布置····················································14　　总体布置要求与分析·············································14总体布置草图···

6、················································18设计总结··························································19　　青岛理工大学课程设计　　本车车头长20XXmm　　货车车箱尺寸　　参考同类型车,考虑本车设计要求，确定本车车箱长度为9776mm。汽车质量参数的确定汽车载客量和装载质量　　汽车载客量：3人汽车的载重量：me=16t　　质量系数ηmo　　质量系数ηmo是指汽车载质量与整车整备质量的比值：　　ηmo=me/m0。　　　　根

7、据表1-1：　　表1-1各类汽车的整备质量利用系数ηmo　　取ηmo=me/m0=整车整备质量mo　　整车整备质量是指车上带有全部装备，加满燃料、水，但没有装货和载人的整车质量。　　根据公式ηmo=me/m0可求mo=me/ηmo=16t/=汽车总质量ma　　汽车总质量ma是指装备齐全，并按规定装满客、货时的整车质量。商用货车的总质量ma整备质量mo、载质量me和驾驶员以及随行人员质量三部分组成，乘员和驾驶员每人质量按65kg计即　　ma=mo+me+3×65kg=11805kg+16000kg+195kg=28000kg=28t　　青岛理工大学

8、课程设计　　表1-2质量参数：　　载质量me16t　　轴荷分配　　轴荷分配系指汽车在空载或满载静止状态下，各车轴对支撑面的垂直负荷，也可