Q/SZJ191001-2017背門過開剛度分析規(guī)范SpecificationofLiftgateCheck-LoadStiffnessAnalysis20XX20XX-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背門過開剛度分析規(guī)范范圍本標準規(guī)定了術語和定義、背門過開剛度分析方法及結果處理方法。本標準適用于CAE部門的背門過開剛度分析。規(guī)范性引用文件無。術語和定義無。摘要本規(guī)范規(guī)定了后背門過開剛度分析的流程與要求。ThespecificationprovidesthestiffnessanalysisprocessandrequirementsforliftgateCheck-Load.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,Latchorrigid,asisshowninfigure2.Liftgate-In-Whiteassembly:? Allliftgatestructuralparts? Adhesive? Mastic? Welds? Mechanicalclinches圖2車門有限元模型Fig2DoorFEAModel坐標系約束時用全局坐標系，施加載荷時采用局部坐標。Constraintthebodyatglobalcoordinatesystem，applyloadatlocalcoordinatesystem.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，約束氣撐桿車身端123自由度，如圖3所示。Constraints1-6dofatthebodysidehinges,constrained123dofatthebodysideofstrut,asshowninfigure3.加載Loads：在鎖扣中心點沿后背門開啟切線方向施加220N，如圖3所示。220Ntangentialtothetravelpathatlatchfishmouthcenter,asshowninfigure3.圖3背門約束及加載Fig3LiftgateConstraints&Loads結果無。性能要求