中型载货汽车总体设计说明书描述.doc

中型载货汽车总体设计说明书 课 程 设 计 学院：机械与动力工程学院 班级：车辆一班 姓名：母兵魁 学号：311204000816 指导教师：赵凯辉 目 录 摘要·······························································1 概述·······························································2 设计任务书·························································4 第1章、 汽车形式和主要参数的初步确定······························5 一、汽车形式的选择·············································5 1.1、汽车轴数···············································6 1.2、驱动形式················································6 1.3、布置形式················································7 二、汽车主要参数的选择·········································7 2.1、汽车主要尺寸参数的确定··································7 2.2、轴荷分配···············································10 第2章 整车主要性能参数的确定和计算································11 一、发动机的选择··············································11 1.1发动机最大功率及其转速的确定······························11 1.2发动机最大转矩及其转速的确定······························12 1.3发动机主要参数············································13 二、配置大柴BA6M1013-28E3发动机的整车性能计算················16 2.1汽车动力性能计算········································16 2.2汽车的加速性能计算······································18 三、轮胎的选择·················································18 四、汽车重要性能参数和车身造型图······························19 五、变速器档位数的选择········································20 第3章、总体布置····················································20 一、总体布置要求与分析·········································20 二、总体布置草图················································24 设计总结···························································26 参考文献··························································27 摘要 汽车的总体设计是汽车设计工作中最重要的一环，它对汽车的设计的质量、 使用性能和在市场上的竞争力有着决定性的影响。因为汽车性能的优劣不仅与相 关总成及部件的工作性能有密切关系，而且在很大程度上还取决于有关总成及部 件间的协调与参数匹配，取决于汽车的总体布置。 货车的总体设