Q/SZJ191001-2017背門角點剛度（開啟狀態(tài)）分析規(guī)范SpecificationofLiftgateCornerStiffness(Open)Analysis20XX20XX-06-30實施20XX-05-29發(fā)布XXXX汽車工程技術有限公司發(fā)布Q/SZXX-X-2017背門角點剛度（開啟狀態(tài)）分析規(guī)范范圍本標準規(guī)定了術語和定義、背門角點剛度（開啟狀態(tài)）分析方法及結果處理方法。本標準適用于CAE部門的背門角點剛度（開啟狀態(tài)）分析。規(guī)范性引用文件無。術語和定義無。摘要本規(guī)范規(guī)定了開啟狀態(tài)下后背門角點剛度分析的流程與要求。ThespecificationprovidesthestiffnessanalysisprocessandrequirementsforliftgateCornerRigidity(Open).流程圖組建詳細模型組建詳細模型Collectdetailedmodel(s)求解Solve加載Applyconstraintsandloads輸出位移并計算Outputdisplacementandcompute圖1流程圖Fig1ProcessFlowDiagram工具描述仿真分析過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建模和分析過程單位分析中所用單位制如下所示:Theunitsusedintheanalysisareasfollows:力(Force) 牛頓(N)質量(Mass) 噸(Ton)長度(Length) 毫米(mm)時間(Time) 秒(Second)內容白門，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坐標系約束鉸鏈時用全局坐標系，約束鎖扣時采用局部坐標，局部坐標見圖3。Constraintthehingeatglobalcoordinatesystem，constraintthelatchatlocalcoordinatesystem,thelocalcoordinatesystemisshowninfigure3.圖3局部坐標示意圖Fig3LocalCoordinateSystem建模技巧無。假設和限制本規(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123456自由度，約束背門側氣撐桿，如圖4所示。Constraints1-6dofatthebodysidehinges,constrained23dofatthelatch,andconstraintstheGasStruts123,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220N，如圖4所示。220NTangentialtothetravelpathdistributedovera50x50patch,25mmfromeachedge,asisshowninfigure4.圖4背門約束及加載Fig4LiftgateConstraints&Loads結果無。性能要求加載點沿加載方向的內板位置：位移<25.0mmMeas