整车FEM建模手册-绝密.doc

文档介绍：整车FEM建模手册-(3or4noded),“symmetry”liney=0(nodesshallbepositionedony=0):·Lengthinmillimetres(mm)·Timeinsecond(s)·Massintonne·,withthefollowingexceptions:·ordingtothedifferentthicknessandmaterialqualitiesoftheparts.·ordingtothedifferentthicknessandmaterialsofextrusion.·Thethicknessatdifferentlocationsonacast/:ST3700=-:变形区域:正面碰撞:A柱与B柱中间位置以前的所有零件及其某些零件的前部(车门除外),另外前端吸能部件,包括纵梁前段、翼子板支撑结构等的平均单元长度为8mm;侧面碰撞:前后从A柱至C柱(包括A柱与C柱),横向左半部所有零件及其某些零件的左半部(框内的零件及其某些零件的框内部分);背面碰撞:C立柱(包括C立柱)以后的所有零件及其某些零件的后部(车门除外)。.(.):QUAD4andTRIA3(max10%ofthefullmodel):Aspectratio<<60Warping<15CrashTimeStep*>-07InternalAngleMinMaxQUAD40140TRIA30120Jacobian>*CrashtimestepforpartB-pillarsystem,longitudinal,-7·-meshedareasshallnotexist·A“freeedge”checkshallbeperformedtoverifythatthereareno”cracks”inthemesh.·A“shellelementnormal”checkshallbeperformedtoverifythatthenormalsareconsistentlydefined·Noduplicategridpointnumbersshallexist.·Noduplic