自行车造型设计

摘要在制图软件中，Solidworks软件自上而下方法的研究已成为研究和开发的热点，逐渐成为一种趋势。在Solidworks环境中,通过产品、部件和零件三者之间参数关联,采用一种基于装配约束的参数化设计方法实现部件的参数化建模,阐述了这种参数化设计方法中的关键技术,包括产品结构的划分、尺寸分析、关联设计、基于布局草图的设计和方程式的添加;运用部件参数化设计方法构建了一个Solidworks部件库。采用这种方法,有利于产品的修改和系列化,提高设计效率。本文在参阅了国内外大量对参数化设计的文献基础之上，以自行车自上而下设计为例，进一步探讨了自上而下的发展和过程。并根据参数化过程中出现的API函数进行阐述，让设计人员从繁琐的绘图工作中解脱出来，集中精力选择和优化设计参数，提高产品质量，缩短产品设计周期。【关键词】：Solidworks；装配约束；自上而下；部件库；自行车ABSTRACTIndrawingsoftware,themethodoftop-downdesignresearchhasbecomethefocusofresearchanddevelopment,Top-down,andgraduallybecomeatrend.ThethesisdiscussestheparametricmodelingmethodofcomponentscompletedbyadoptingtheparametricmethodbasedonassemblyconstraintthroughtheirparametriclinksofproductcomponentsandpartsundertheSolidWorks.Meanwhile,itintroducesthekeytechniqueofthismethod,includingthepartitionofproductstructure,dimensionanalysis,relatingdesign,assemblydesignbasedonlayoutsketchandtheaccessionofequation.ThethesiscreatesacomponentslibraryintheSolidWorksbyusingthemethodofparametricdesignforcomponents.Adoptingthismethodwillbeinfavorofthemodificationandserialdesignofaproduct,andraisethedesignefficiency.Basedonalargenumberofdomesticparametricdesignbasedontheliterature,bicycleofparametricdesign,forexample,furtherdiscussesthedevelopmentandtheprocessparameters.Andaccordingtotheparametricprocess,APIdesignpersonnelfromdrawingworkfreed,concentrateonselectionandoptimaldesignparameters,improveproductquality,shortentheproductdesigncycle.KEYWORDS：SolidWorks；assemblyconstraint；Top-down；componentslibrary；bicycle目录第1章绪论.........................................................................................................................11.1自行车的行业.....................................................................................................11.2选题依据与研究意义.........................................................................................11.3课题的研究及研究现状.....................................................................................2第2章自行车的一般设计.................................................................................................52.1自行车的新型材料.............................................................................................52.2自行车造型.........................................................................................................62.3自行车结构.........................................................................................................62.4自行车功能.........................................................................................................72.5人与自行车系统.................................................................................................82.5.1人与支撑部件的关系................................................................................92.6.1基本原则..................................................................................................102.6.2结构尺寸确定..........................................................................................10第3章自行车零件的作用及三维建模...........................................................................123.1自行车简介.......................................................................................................123.2三维建模...........................................................................................................123.2.1创建布局草图..........................................................................................123.2.2自行车零件——车架..............................................................................133.2.3自行车零件——车把..............................................................................133.2.4自行车零件——前叉..............................................................................143.2.5自行车零件——鞍座..............................................................................143.2.6自行车零件——车轮..............................................................................153.2.7自行车零件——踏板组合件..................................................................163.2.8自行车零件——后座、挡泥板、链盒..................................................183.3自行车整车三维模型.......................................................................................203.4自行车的爆炸视图...........................................................................................21第4章Solidworkssimulation对自行车的结构分析......................................................234.1SolidworksSimulation.......................................................................................234.2线性静态分析...................................................................................................234.3结构分析...........................................................................................................234.4对自行车的力学分析.......................................................................................244.4.1对前叉的分析过程..................................................................................244.5运行结果...........................................................................................................25结论........................................................................................