汽车格栅Gload分析规范

Q/SZJ191001-2017Q/SZC2-405-2015格栅Gload分析规范SpecificationOfGloadAnalysisForGrill20XX20XX-XX-XX实施20XX-XX-XX发布XXXX汽车工程技术有限公司发布Q/SZXX-X-2017格栅Gload分析规范范围本标准规定了格栅Gload分析的分析方法，确定格栅强度。本标准适用于CAE部门格栅Gload分析。规范性引用文件无。术语和定义无。流程图PROCESSFLOWDIAGRAM建模Model建模ModelMeettarget确定安装点点FixedPoint约束边界Boundary设置参数计算Setparameter结束End优化Optimization图1流程图Figure1ProcessFlowDiagram）工具描述TOOLDESCRIPTION仿真分析过程中需要用到的如下软件:Thefollowingsoftwarefacilitatestheanalyticalsimulationprocess:前处理(Preprocessors):Hypermesh求解器(AnalysisCode):Nastran后处理(Postprocessors):HyperView建模和分析过程MODELING/ANALYSISPROCEDURE单位Units分析中所用单位制如下所示:Theunitsusedintheanalysisareasfollows:力(Force) N质量(Mass) Ton长度(Length) mm时间(Time) s内容Contents坐标系CoordinateSystems建模技巧ModelingTechniques本分析中格栅总成模型包含侧边和中间支架，约束点位于格栅侧支架和重建支架与车身连接点。如果支架安装在比较弱的零部件上，该零部件也需要一起分析。Grilleassembly(includingsideandcenterbracket)isusedintheanalysis.Theboundaryconstraintsaredefinedattheattachmentbetweenrigidvehiclebodyandcenterandsidebrackets.However,ifthesebracketsareattachedtosomecomponentswhichcannotbetreatedasrigidbody,thesecomponentsshouldbeincludedintothemodelbeinganalyzed假设和限制ASSUMPTIONS/LIMITATIONS约束和边界条件CONSTRAINTS/BOUNDARYCONDITIONS约束格栅系统安装点，约束1-6DOF。车身和格栅的连接点认为是刚性连接。MountinglocationsSPC’d1-6forgrilleassembly.Analyzethegravityloadperformanceofgrille.Useconsistentunits.Theattachmentpointsareassumedtoberigidconnectionsbetweenrigidvehiclebodyandgrilleassembly.It’slefttouserdiscretiontoincludewhatcomponentsintogrilleassemblyotherthangrilleitself.图2边界约束Fig2Boundarycondition载荷LOADSX、Y方向分别加载5G,Z向加载10G5GLoadCaseinX;5GLoadCaseinY;10GLoadCaseinZ性能要求PERFORMANCEREQUIREMENTS最大应力小于屈服应力的90%。Maximumstressforthefollowingloadcasesshouldbelessthan90%oftheallowablestressforthematerial.分析要求ANALYSISREQUIREMENTS无。结果RESULTS结果格式ResultsFormatsOP2