毕业设计论文轿车盘式制动器设计及优化.doc

PAGEIIPAGEIII轿车盘式制动器设计及优化摘要盘式制动器主要用于行车制动，其制动效能稳定，在汽车中得到广泛的应用。首先通过了解制动器的设计要求，对盘式制动器进行初始设计；然后再对盘式制动器进行优化设计。本设计通过对摩擦片的中心圆半径、摩擦片直径、制动盘的直径、活塞直径、制动盘厚度、油缸内的油压等参数的优化设计，以制动时间、制动盘的厚度、制动盘的温升作为优化设计目标，建立盘式制动器的优化设计数学模型。选用合理的优化设计方法，编写MATALB程序，通过优化程序的运行，得到最终优化结果，从而得出盘式制动器较合理的尺寸。关键词：盘式制动器；轿车；设计；优化DesignandOptimizationofDiskBrakeonCarABSTRACTDiscbrakesaremainlyusedtobrakewhenvehicleissteering.Duetostabilityofdiskbrakes,theyarewidelyusedonvehicles.Firstthroughunderstandingthedesignrequirementsofbrake,dotheinitialdesignofdiskbrake；seconddoingtheoptimaldesignfordiskbrake.Inthisdesign,itoptimizesthedesignthroughtheoptimaldesignoftheradiusofcentercircleoffrictionsheet,thediameteroffrictionsheet,thediameterofdiscdrake,thediameterofpiston,thedeepofdishbrake,theoilpressureinoiljarandsoon,andtakingthetimeofbraking,thedeepofdiscbrake,thetemperatureofdiskbrakeastheaimofoptimization,thenestablishthediskbrakeoptimaldesign’smathematicalfunctionmodel.selectingareasonableoptimaldesign’stoolsandraddleprogrambyMATLAB.Passingtheoptimalprogram’soperation,gettheeventuallyoptimalresult,sowecanconcludethereasonabledimensionofdiscbrake.Keyboard:Discbrake;Car;Design;Optimization目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc168580361"前言PAGEREF_Toc168580361\h1HYPERLINK\l"_Toc168580362"1汽车制动系概述PAGEREF_Toc168580362\h2HYPERLINK\l"_Toc168580363"1.1汽车制动器PAGEREF_Toc168580363\h2HYPERLINK\l"_Toc168580364"1.2浮动钳式盘式制动器PAGEREF_Toc168580364\h3HYPERLINK\l"_Toc168580365"1.3盘式制动器的优缺点及应用PAGEREF_Toc168580365\h4HYPERLINK\l"_Toc168580366"2盘式制动器的设计PAGEREF_Toc168580366\h5HYPERLINK\l"_Toc168580367"2.1制动器主要零部件的设计PAGEREF_Toc168580367\h5HYPERLINK\l"_Toc168580368"2.2盘式制动器工作间隙的调整PAGEREF_Toc168580368\h6HYPERLINK\l"_Toc168580369"2.3摩擦衬片（衬块）的磨损特性计算PAGEREF_Toc168580369\h7HYPERLINK\l"_Toc168580370"3钳盘式制动器的优化设计PAGEREF_Toc168580370\h8HYPERLINK\l"_Toc168580371"3.1概述PAGEREF_Toc168580371\h8HYPERLINK\l"_Toc168580372"3.2建立盘式制动器优化设计的数学模型PAGEREF_Toc168580372\h8HYPERLINK\l"_Toc168580