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1、SeatbeltfittingSlide61LS-DYNAENVIRONMENTSeatbeltfitting–firststeps•Wehavealreadyseenhowtore-fitanexistingseatbelt.Nowwewilllearnhowtocreateandfitanewseatbelt.•DeleteexistingmodelsfromPrimer.•Readdummy_seat_for_belt_fit.key.•Beforewestartwork,considerintowh
2、ichIncludeFilewewantthenewbeltelementstobeplaced.SetthisIncludefileasthe“currentlayer”.•GotoTools=>Occupant=>Seatbelts.•Intheseatbeltsmenu,press“1.Define”,then“Create”,and“Apply”.•Wenowselectthepartsthatcanbecontactedbythebeltduringfitting.Intheobjectmenu,
3、selecttheobjecttype“Part”,thenclickonthechestandpelvisofthedummy.Press“Apply”.Slide62LS-DYNAENVIRONMENTSeatbeltfitting–pathdefinition•Press“2.Fit”.•Pressthe“Dimens”buttonandsetthelengthofthebeltelementsto15mm,andthe#rowsto4(4elementsacrossthewidthofthebelt
4、).Press“Done”.•Press“Definepath”.•Wearenowgoingtopicknodesformingthepathofthebelt,startingattheretractor.Tomakeiteasiertoseethenodes,useshortcutYtoaddthemeshoverlay.•Trytopicknodesapproximatelyasshownonthenextslide.Slide63LS-DYNAENVIRONMENTSeatbeltfitting–
5、pathdefinition3.Ondummy’s2.Forslipring–chestonB-post4.Ondummy’schest1.Forretractor–onB-post8.Forfixedend–onB-post5.Onbuckleblock6.Ondummy’s7.Ondummy’spelvispelvisSlide64LS-DYNAENVIRONMENTSeatbeltfitting–pathdefinition•Changepoint1tobearetractor.•Changepoin
6、ts2and5tobesliprings.•Checkthattheprototypemeshdoesnotpenetratethroughthechestorpelvisofthedummy.Ifitdoes,movethepathpoints(press“Modifycoords”,thenleft,middleandrightmousebuttonsforX,YandZdirections).•Itisalsopossibletocontrolthetwistofthebeltpathifyouwis
7、h(“Controltwist”,thenusethedraghandles).•Whenyouaresatisfied,press“Save”.Slide65LS-DYNAENVIRONMENTSeatbeltfitting–fitting•Press“Fit”.Primertightenstheprototypebeltmeshontothedummy.•Iftheresultlooksreasonable,press“Accept”.Ifnot,gobackto“Definepath”andmodif
8、ytheinitialpath,thenFitagain.Slide66LS-DYNAENVIRONMENTSeatbeltfitting-meshing•Nextwewillmeshthebelt.Theprototypemeshseeninthepreviousstepsexistsonlytoshowwherethemeshwillbecreated.•Press“3.Mesh”.•Primernowdis
