基于遗传算法的机车横向动力学参数的优化设计

基于遗传算法的机车横向动力学参数的优化设计

摘要…………...…………………………………………………………………………………..II
Abstract ……...…………………………………………………………………………………. III
第1 章：绪论……......…………………………………………………………………………....1
1.1 论文选题背景........................................................................................................... 1
1.2 用遗传算法优化车辆悬挂参数的意义........................................................................ 1
1.3 本文所做的工作....................................................................................................... 1
第2 章：车辆悬挂及车辆横向动力学的基本理论……...……………………………………...2
2.1 机车悬挂装置........................................................................................................... 2
2.2 蠕滑.........................................................................................................................2
2.2.1 蠕滑率........................................................................................................... 2
2.2.2 蠕滑力........................................................................................................... 4
2.3 轮轨重力特性.........................................................................................................5
2.3.1 轮对重力刚度................................................................................................ 5
2.3.2 轮对重力角刚度.............................................................................................6
2.4 二轴转向架机车横向动力学.................................................................................. 7
2.4.1 概述...........................................................................................................7
2.4.2 走行部参数对横向稳定性的影响.................................................................7
2.5 轮对和转向架的蛇行运动.......................................................................................... 8
第3 章：动力学模型的建立……...………………………………………………………………9
3.1 Simpack 软件........................................................................................................... 9
3.1.1 Simpack 软件的介绍...................................................................................... 9
3.1.2 软件特点....................................................................................................... 9
3.1.3 客车系统建模.............................................................................................. 10
3.2 车辆系统的建模...................................................................................................... 11
3.3 车辆参数................................................................................................................. 11
3.4 建模基本假设..........................................................................................................14
3.5 利用仿真软件Simpack 建立客车动力学模型............................................................ 15
第4 章动力学模型悬挂参数的优化...............................................................................25
4.1 遗传算法介绍.........................................................................................................25
4.1.1 遗传算法定义............................................................................................... 25
4.1.2 遗传算法特点............................................................................................... 25
4.1.3 遗传算法应用............................................................................................... 25
4.1.4 遗传算法现状............................................................................................... 26
4.2 ISIGHT 软件........................................................................................................... 27
4.2.1ISIGHT 软件的介绍........................................................................................ 27
4.2.2 软件特点...................................................................................................... 27
4.3 运用Isight 建立优化模型......................................................................................28
4.3.1 优化方案...................................................................................................... 28
4.3.2 优化过程...................................................................................................... 28
4.4 计算结果................................................................................................................42
结论..............................................................................................................................43
结束语……...…………………………………………………………………………………….44
参考文献……...………………………………………………………………………………….45
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