CATIA-小飞机.pdfVIP

CATIAV5FreeformSurfaces(Tutorial4--RebuildP51Mustang Tutorial4A: StartCATIA: ●File/New/Part(DONOTSELECT”HybridDesign”) ●SwitchWorkbenchtoGenerativeShapeDesign ●Insertageometricalset“reference” TocreateaSurface: ●TocreateasketchonYZplane,anddrawaverticalstraightlineontheleft (length~120mm,location~100mmfromorigin) ●Tocreateanextrudesurface,selectsketch1asprofile,yzasdirection. (clickReverseDirection,andlimit 1dragitto~285mm) ● ToApplyaTexturematerialontothesurface ●Toreplacethetexturebyapicture(selectp51-right.jpgasfirstpicture) Now,theresultshouldbelookslikefollowpicture: ●TocreateanothersketchonZXplane,anddrawaverticallineontheleft(25.4mm) ●Toresize andrelocate the reference picture(adjust the values ScaleU,V and PositionU.V untilthescale1-2isnearlyofthesameheightasSketch.2) ●TodeleteSketch.2 ●Toresizethesurfacetofitthepicture,asfollowpictureshow: TocreateanotherSurface: ●TocreateasketchonYZplaneanddrawahorizontallineasshown(Length~200mm,Location ~100mmunderorigin) ● To create an extrude surface(select sketch.3 as profile ,YZ plane as direction and click ReverseDirection),thenewsurfaceshouldbeshownasfollow: ●Toapplyatexturematerialontothesurface ●Toreplace the texture by apicture(double -click B Tilingon the tree and selectthe tab page Rendering,select imageas type,and open p51-top.jpg,then adjust UV scales until the peakthetailbothtouch.thepicturesasfollows: TocreatethirdSurface: ●TocreateasketchonZXplaneanddrawaverticallineasshown ●To create an extrude surface(select Sketch.4asprofile,zx plane as direction and click ReverseDirection ,drag Limit.2 sothat the extrusionlengthsinbothdirectionsarenearlythesame) ●Toapplyatexturematerialontothesurface ●Toreplacethetextureby apicture ,andadjustthepositionto locate thecenterlineoftheimageontotheorigin,theresultasfollows: Toadjustsketch: ●Modifysketch1,extrude 1toadjustRightView ●Modifysketch3,extrude2toadjustTopView ●Modifysketch4,extrude3toadjustFrontView ●hidesk