Q/SZJ191001-2017車(chē)燈(系統(tǒng))Gload分析規(guī)范SpecificationofHeadlampGloadAnalysisforComponent20XX20XX-XX-XX實(shí)施20XX-XX-XX發(fā)布XXXX汽車(chē)工程技術(shù)有限公司發(fā)布Q/SZXX-X-2017車(chē)燈（車(chē)身）Gload分析規(guī)范范圍本標(biāo)準(zhǔn)規(guī)定了術(shù)語(yǔ)和定義、車(chē)燈強(qiáng)度的分析及結(jié)果處理方法。本標(biāo)準(zhǔn)適用于CAE部門(mén)車(chē)燈Gload分析。規(guī)范性引用文件無(wú)。術(shù)語(yǔ)和定義、無(wú)摘要Abstract本分析規(guī)范的目的是為了確定車(chē)燈強(qiáng)度。ThepurposeofthisanalysisistodeterminethestrengthoftheHeadlampassembly.流程圖ProcessFlowDiagram組建詳細(xì)模型組建詳細(xì)模型Collectdetailedmodel(s)求解Solve加載Applyconstraintsandloads輸出位移并計(jì)算Outputdisplacementandcompute圖1流程圖Fig1ProcessFlowDiagram工具描述ToolDescription仿真分析過(guò)程中需要用到的如下軟件:Thefollowingsoftwarefacilitatestheanalyticalsimulationprocess:前處理(Preprocessors):Hypermesh求解器(AnalysisCode):MSC.Nastran后處理(Postprocessors):Hyperview建模和分析過(guò)程Modeling/AnalysisProcedure單位Units分析中所用單位制如下所示:Theunitsusedintheanalysisareasfollows:力(Force) 牛頓(N)質(zhì)量(Mass) 噸(Ton)長(zhǎng)度(Length) 毫米(mm)時(shí)間(Time) 秒(Second)內(nèi)容Contents模型包含車(chē)燈燈殼，燈片，集中質(zhì)量點(diǎn)以及轉(zhuǎn)動(dòng)慣量。ModelIncludelamphousing,lens,remaininglampmass,andwherenecessarysignificantlampinternals.坐標(biāo)系CoordinateSystems整車(chē)坐標(biāo)系Globalcoordinatesystem建模技巧ModelingTechniques無(wú)。假設(shè)和限制Assumptions/Limitations以上截取的車(chē)身剛度等同整車(chē)剛度。阻尼對(duì)分析無(wú)影響。Theportionofthevehicledescribedaboverepresentsthevehiclestiffness.Dampingforcesareinsignificanttothisanalysis.載荷和邊界條件Loads/BoundaryConditions約束與燈相連接零部件連接點(diǎn)用RBE2模擬，約束1-3DOF。與車(chē)身相連的連接點(diǎn)用RBE2模擬，約束1-3DOF。車(chē)燈用CONM2單元模擬包含轉(zhuǎn)動(dòng)慣量信息，車(chē)燈質(zhì)量在質(zhì)心處用RBE3連接到車(chē)燈殼上。Theattachmentpointsareassumedtoberigid(RBE21-3)connectionsbetweencomponentswithinthelampassembly.Attachmentstothebodystructureareassumedtoberigid(RBE21-3)connections.圖2邊界約束示意圖Fig2BoundaryconditionDisplay載荷LOADSX、Y方向分別加載5G,Z向加載10G5GLoadCaseinX;5GLoadCaseinY;10GLoadCaseinZ結(jié)果Results性能要求PerformanceRequirements最大應(yīng)力小于屈服應(yīng)力的90%。Maximumstressforthefollowingloadcasesshouldbelessthan90%oftheallowablestress