纯电动汽车制动器及其部件设计（可编辑）.doc

纯电动汽车制动器及其部件设计 关键词:鼓式制动器,盘式制动器,优化设计,MATLAB,CATIA Pure electric automobile brake and its components design Abstract Automobile braking system has the function of making the travelling vehicles slow down or stop, travelling downhill stabilitily, and maintaining this state. Braking has direct impact on the safety of travelling and the reliability of parking. The auto emissions to environment pollution, zero discharge of the growing of the electric car research has become inevitable. The braking system of the car assembly as an important part of the role, it should not be ignored. A performance brake excellent braking system, electric car, in addition to it have better safety outside, still can regenerate energy, improve through electric cars trip mileage This thesis is to design and calculate Pure electric automobile brake and its components design which are composed by brakes and brake-driven institutions, so this paper analysis two aspects. One hand, I determine the initial size of the brake according to the data of this vehicle, then use MATLAB software for the size optimization making the brake’s efficiency factor smallest under various constraints conditions. After getting the optimized data, I use CATIA software to br hand, to design and compute the brake-driven institutions which is composed by vehicular uild 3D mode, then, for editing 2D engineering drawing, the qualified model is output into the software of AutoCAD by the CATIA’s engineering graphics output function. On the othebraking system, emergency braking system and stopping braking system; Lastly, drawing Brake principle diagramKey Words: Drum Brakes,Disc brakes,Optimum Design, MATLAB, CATIA 目录 摘 要 I Abstract II 第1章 绪 论 1 1.1 课题研究背景和意义 1 1.2 国内外研究现状概述 2 1.3 本文主要研究内容 2 第2章 基于MATLAB的优化设计 4 2.1确定盘式制动器尺寸 4 2.1.1制动盘直径D 4 2.1.2制动盘厚度h 4 2.1.3摩擦衬块外半径R1内半径R2 4 2.1.3摩擦衬块面积A 4 2.2确定鼓式制动器尺寸 4 2.2.1制动鼓内径D 4 2.2.2摩擦衬片宽度b和包角α 5 2.2.3制动力中心到促动力的作用线的距离e 5 2.2.4制动蹄支撑点