Q/SZJ191001-2017背門角點(diǎn)剛度（關(guān)閉狀態(tài)）分析規(guī)范SpecificationofLiftgateCornerStiffness(Close)Analysis20XX20XX-XX-XX實(shí)施20XX-XX-XX發(fā)布XXXX汽車工程技術(shù)有限公司發(fā)布Q/SZXX-X-2017背門角點(diǎn)剛度（關(guān)閉狀態(tài)）分析規(guī)范范圍本標(biāo)準(zhǔn)規(guī)定了術(shù)語(yǔ)和定義、背門角點(diǎn)剛度（關(guān)閉狀態(tài)）分析方法及結(jié)果處理方法。本標(biāo)準(zhǔn)適用于CAE部門的背門角點(diǎn)剛度（關(guān)閉狀態(tài)）分析。規(guī)范性引用文件無(wú)。術(shù)語(yǔ)和定義無(wú)。摘要本規(guī)范規(guī)定了關(guān)閉狀態(tài)下后背門角點(diǎn)剛度分析的流程與要求。ThespecificationprovidesthestiffnessanalysisprocessandrequirementsforliftgateCornerRigidity(Close).流程圖組建詳細(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)程單位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)容白門，如圖2所示。Liftgate-In-White,Glass,Hingeassembly,Gumdrops.Themodelisshowninfigure2.Liftgate-In-Whiteassembly:? Allliftgatestructuralparts? Adhesive? Mastic? Welds? Mechanicalclinches圖2車門有限元模型Fig2DoorFEAModel坐標(biāo)系約束鉸鏈時(shí)用全局坐標(biāo)系，約束鎖扣時(shí)采用局部坐標(biāo)，局部坐標(biāo)見(jiàn)圖3。Constraintthehingeatglobalcoordinatesystem，constraintthelatchatlocalcoordinatesystem,thelocalcoordinatesystemisshowninfigure3.圖3局部坐標(biāo)示意圖Fig3LocalCoordinateSystem建模技巧無(wú)。假設(shè)和限制本規(guī)范僅用于靜態(tài)線性分析Theprocedureisapplicableonlytostaticlinearanalysis載荷和邊界條件約束Constrains：約束鉸鏈車身端安裝點(diǎn)123456自由度，約束鎖扣處局部坐標(biāo)系下23自由度，約束緩沖墊法向自由度，如圖4所示。Constraints1-6dofatthebodysidehinges,constrained23dofatthelatch,andconstraintsthenormaltosurfaceatthebumper,asshowninfigure4.加載Loads：在距離外板相鄰兩邊邊緣處25mm位置沿垂直外板方向50*50mm面積均勻加載500N，如圖4所示。500Nverticalloadappliedtoouterpaneldistributedover50x50mmareaat25mmfromeachedge,asisshowninfigure4.圖4背門約束及加載Fig4LiftgateConstraints&Loads結(jié)果無(wú)。性能要求加載點(diǎn)沿加載方向的內(nèi)板位置：位移<14.0mmMe