离合器结构优化与仿真分析1

安徽工程大学毕业设计（论文）-I-离合器结构优化及仿真分析摘要本文在离合器建模的基础上对离合器的零部件进行了有限元分析，并且对离合器模型进行了仿真分析。首先，利用UG(Unigraphics)软件建立整个离合器三维模型，并进行了虚拟装配。接着，利用NXnastran软件的有限元分析功能对膜片弹簧、盘毂和离合器盖的模型，进行了最危险工况下的静应力计算和模态分析，得到其在各自危险工况下的最大静应力、应变和固有频率，并对以上部件进行了耐久性分析，得到了各自的危险疲劳点。随后，又运用MATLAB软件对膜片弹簧进行了优化设计，并得到了优化后的参数。最后，对离合器模型进行了仿真分析，得到了滑磨和锁止工况下，离合器的接合规律曲线，为离合器的性能分析提供了依据。课题的研究为离合器的盘毂、离合器盖和膜片弹簧的设计提供了参考实例。关键词：离合器；优化；仿真；有限元；模态分析安徽工程大学毕业设计（论文）-II-ClutchstructuraloptimizationandsimulationanalysisAbstractThispapercarrysoutthefiniteelementanalysisontheclutchpartsandsimulationanalysisonclutchmodelBasedonthemodeloftheclutch.First,usesUG(Unigraphics)softweartoestablishathree-dimensionalmodelofthewholeclutch,andmakeavirtualassembly.then,employsfiniteelementmethodthroughNXnastransoftweartocalculatestaticstressandanalyzediaphragmspringmodel,clutchdischubmodelandclutchcovermodelunderthemostdangerousoperatingconditioninordertoobtaintheirrespectivemaximumstaticstress,strainandnaturalfrequency.Simultaneously,respectivefatiguepointsareachievedviaanalyzingtheirdurability.Then,resortstoMATLABsoftwaretooptimizediaphragmspringandgetsnewparameters.Theresearchaboveoffersatheoreticalreferencefordesignofdischub,clutchcoveranddiaphragmspringinthefuture.Finally,itstudiesthesimulationanalysisofclutchmodel,andgetthecurveoftheclutchengagementinslippingandlockingcondition,provideatheoreticalfoundationfortheperformanceoftheclutch.Keywords:clutch;optimization;simulation;finiteelement;modalanalysis.安徽工程大学毕业设计（论文）-III-目录摘要.................................................................IAbstract................................................................II目录...................................................................III插图清单.................................................................V插表清单................................................................VI引言.....................................................................7第1章绪论..............................................................81.1静力学分析和优化涉及的意义和价值......................................81.2国内外研究现状和发展趋势.............................................91.3论文的研究内容.......................................................9第2章离合器简介及建模.................................................102.1引言................................................................102.2软件简介............................................................102.2.1UG软件简介........................................................102.2.2NXNastran软件简介................................................112.2.3MATLAB软件简介....................................................112.3离合器简介与建模....................................................122.3.1离合器简介.........................................................122.3.2离合器整体三维建模.................................................132.4本章小结............................................................14第3章膜片弹簧的分析与优化.............................................153.1膜片弹簧静力学分析...................................................153.1.1材料特征常数及单位.................................................153.1.2膜片弹簧强度计算结果云图输出......................................163.2膜片弹簧模态分析....................................................173.3膜片弹簧的耐久性分析................................................213.3.1疲劳应力与持久极限................................................213.3.2膜片弹簧的耐久性分析..............................................213.4膜片弹簧的优化设计..................................................223.5本章小结............................................................20第4章从动盘盘毂的分析..................................错误!未定义书签。4.1盘毂静力学分析........................................错误!未定义书签。4.2盘毂强度计算结果云图输出..............................错误!未定义书签。4.3盘毂模态分析..........................................错误!未定义书签。4.4盘毂的耐久性分析......................................错误!未定义书签。4.5本章小结.............................................错误!未定义书签。第5章离合器盖的分析....................................错误!未定义书签。5.1离合器盖静力学分析....................................错误!未定义书签。5.2离合器盖位移计算结果云图输出..........................错误!未定义书签。5.3离合器盖静力学分析....................................错误!未定义书签。5.4离合器盖模态分析.....................................错误!未定义书签。安徽工程大学毕业设计（论文）-IV-5.5离合器盖的耐久性分析.................................错误!未定义书签。5.6本章小结.............................................错误!未定义书签。第6章离合器仿真........................................错误!未定义书签。6.1离合器的数学模型.....................................错误!未定义书签。6.2离合器系统仿真.......................................错误!未定义书签。6.3离合器模型的结果输出.................................错误!未定义书签。6.4本章小结.............................................错误!未定义书签。结论与展望...............................................错误!未定义书签。参考文献.................................................错误!未定义书签。致谢.....................................................错误!未定义书签。附录A外文文献及翻译.....................................错误!未定义书签。附录B主要参考文献的题录及摘要...........................错误!未定义书签。附录C源程序代码.........................................错误!未定义书签。附录D离合器二维图.......................................错误!未定义书签。安徽工程大学毕业设计（论文）-V-插图清单图2-1离合器的基本组成示意图……………………………………………………错误!未定义书签。图2-2离合器爆炸图………………………………………