高速动车组车辆车体结构总体设计

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

ABSTRACT

With the technology and the improvement of living standards, the distance between the cities getting shorter and shorter. High-speed EMU as a new means of transport is replacing the existing traffic gradually. This paper introduces the design of overall body structure for 200 km/h of CRH2 EMU. According to the development overview and the latest research results of domestic and foreign high-speed EMUs, as well as to achieve the air tightness and weight of train for purpose, completing the design of overall body structure for the 200km /h EMU. 2M2T is selected as the basic formation program and it’s made up of eight vehicles, mainly taking some study on the rival car body. First of all, the choice of body material, compared with weathering steel, stainless steel and aluminum alloy, aluminum alloy is the most suitable. It can reduce the vehicle weight and improve vehicle acceleration. It also can reduce consumption of transport capacity, traction and braking, and even can reduce wear on the line and the impact, expand the transport capacity. Secondly, choose the structure of the body, mainly double-shell structure. It introduces the modular concept, the aluminum alloy body is to be divided into several modules, including block chassis modules, side-wall modules, roof modules, the end modules and annex to the bottom of vehicle, each module processes separately. Finally, form the aluminum alloy body with all modules together.

Keywords: Vehicle Engineering; High-speed EMU; Body structure; Aluminum alloy

目录

第一章绪论 (1)

1.1 选题背景与意义 (1)

1.2 世界各国高速铁路发展概况 (1)

1.3模块化铝合金车体发展现状 (3)

1.3.1 动车车体模块化概念 (3)

1.3.2 车体材料的选用 (3)

1.4 主要研究内容及本文结构 (5)

1.4.1 主要研究内容 (5)

1.4.2 本文结构 (5)

第二章CRH2动车组介绍 (7)

2.1 编组 (7)

2.2 主要技术参数 (7)

2.3 其余参数 (8)

2.3.1车门 (8)

2.3.2座椅 (9)

2.3.3车窗 (9)

2.4 设计标准 (9)

第三章高速动车车体结构设计 (10)

3.1 概述 (10)

3.1.1车体承载结构特点 (10)

3.1.2车体用铝合金材料 (10)

3.2 车体轻量化 (11)

3.2.1 轻量化的目的 (11)

3.2.2 车体轻量化的主要措施 (11)

3.3 动车组车体结构 (12)

3.3.1 国外典型的铝合金车体结构 (12)

3.3.2单壳车体和双壳车体的比较 (15)

3.3.3 断面结构的选择 (17)

3.4动车组车体的结构组成 (18)

3.4.1底架 (19)