背門側向剛度分析規范

Q/SZJ191001-2017背門側向剛度分析規范SpecificationofLiftgateLateralStiffnessAnalysis20XX20XX-06-30實施20XX-05-29發布XXXX汽車工程技術有限公司發布Q/SZXX-X-2017背門側向剛度分析規范范圍本標準規定了術語和定義、背門側向剛度分析方法及結果處理方法。本標準適用于CAE部門的背門側向剛度分析。規范性引用文件無。術語和定義無。摘要本規范規定了后背門側向剛度分析的流程與要求。Thespecificationprovidesthestiffnessanalysisprocessandrequirementsforliftgatelateral.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，鉸鏈，玻璃，鎖或Rbe2，如圖2所示。Liftgate-In-White,HingeAssembly,Glass,Latchorrigid.Asshowninfigure2.Liftgate-In-Whiteassembly:? Allliftgatestructuralparts? Adhesive? Mastic? Welds? Mechanicalclinches圖2車門有限元模型Fig2DoorFEAModel坐標系約束車身處鉸鏈安裝點時用全局坐標系，約束鎖扣中心時采用局部坐標，局部坐標如圖3所示。Constraintthebodyhingemountatglobalcoordinatesystem，Constraintthelatchfishmouthcenteratlocalcoordinatesystem,Asisshowninfigure3.圖3局部坐標示意圖Fig3LocalCoordinateSystem建模技巧無。假設和限制本規范僅用于靜態線性分析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，約束鎖扣中心3自由度。如圖4所示。Constraints1-6dofatthebodysidehingesand3dofatlatchfishmouthcenter,asshowninfigure4.加載Loads：在后背門的鎖扣中心施加500N，如圖4所示。Apply500Nlateralloadtolatchfishmouthcenter,asshowninfigure4.圖4背門約束及加載Fig4Liftgate