汽车CATIA培训教程.ppt

汽车CATIAGSD培训详细教程,1-Startmenu2-File/Newmenu3-快捷菜单workbenches,GenerativeShapeDesign,二、基础工具条与菜单对应简介（1/2）,Wireframe,Operations,基础工具条与菜单对应简介（2/2）,Surfaces,Analysis,三、各基本工具按钮的功能简介：1、Wireframe（创建线、框）,Between,Bycoordinates,OnCurve,Onsurface,Normaltosurface,Tangenttocurve,Bisecting,创建参考点、线,Alignedwithreferencedirection,Normaltoreferencedirection,Normaltocircle,CreatingPlane创建平面,Normaltocurve,Tangenttosurface,Offsetfromplane,Offsetfromplane,CreatingPlanes平面之间创建平面,两平面可平行也可不平行,4instances,CreatingaSetofPlanes一组平面,以存在的平面为参考,Origin,CreatinganExtremum极值元素,Element,Extremum,Iftheelementisasurface,youmayspecifytwoothersdirections.,只有一种方向限制,两种方向限制,CreatingaPolarExtremum极坐标元素(1/2),最小半径最大半径最小角度最大角度,极坐标元素(2/2),最小半径,最大半径,最小角度,最大角度,CreatingProjectedElements投影,ProjectedElements,Elementstoproject,被投影元素可后创建，也可删除和修改,对多解的时候，保留最近的解,CreatingaCombinedCurve组合投影线,两条曲线沿垂直或指定方向拉伸后，两曲面的交线,Resultingcombinedcurve,Resultingcombinedcurve,Direction1,Direction2,Curve1,Curve2,Direction1,Direction2,CreatingaReflectLine反射线,反射线可把支撑面分成两部分,Support,曲面上法矢方向与指定方向成一定角度的点所构成的曲线,3DCurveOffset3D曲线偏移,IntersectingElements求交,IntersectingElement,Elementstointersect,Intersections,Typeofcreatedelement:,Or,延伸求交,交集在第一原素扩展,空间求交,ParallelCurve平行线,Referencecurve,Support,ParallelCurve,Geodesic,Euclidean,Round,Sharp,按规则平行,Centerandradius,Centerandpoint,Twopointsandradius,Threepoints,Support,CreatingCircles圆及圆弧,在支撑面上创建圆及圆弧,Corners(3D)倒角,Element1,Element2,Support,Element1,Direction,3DCorners,可选择,最高点倒角,CreatingConnectCurves桥接曲线(1/2),ConnectCurve,Curvestoconnect,CreatingConnectCurves桥接曲线(2/2),Curvestoconnect,BaseCurves,BaseCurveUsed,ConnectCurve,BaseCurveUsed,ConnectCurve,CreatingaConic圆锥曲线,Parameter:,-P=0.5forparabola,-P0.5forhyperbola,Intermediatepassingpoints,Tangentsassociatedtothetwofirstpassingpoints,CreatingaSplineCurve样条曲线及折线,CreatingaHelix螺旋线,锥螺纹,用轮廓限制,螺距用规则限制,普通螺纹,CreatingaSpiral平面螺旋线,Endangle,Startradius,Endradius,CreatingaSpine脊骨曲线,Endradius,选择一组平面,选择两条引导线,Profile,Limits,Axisofrevolution,Profile,2、Surfaces：Extruded、Revolution拉伸、旋转,CreatingaSphereandCylindrical球面及圆柱面,CreatinganOffsetSurface偏移曲面,RepeatobjectafterOK,Referencesurface,Sub-Elementstoremove:,SweptSurface扫描曲面:a、Explicit指定轮廓线,按规则定义角度,b、Linetype直线形轮廓,Length1,Length2,Guidecurve1,Guidecurve2,Withreferencesurface,Withtangencysurface:,Withdraftdirection,Withreferencecurve,surface,Guide,surface,Guide,Linetype直线形轮廓,Length1,Length2,Guidecurve1,Guidecurve2,Withtwotangencysurfaces:,Limitandmiddle:,Twolimits:,Selecttwoguidecurves.SelecttheLimitandmiddleoptionfromthelisttousethesecondguidecurveasmiddlecurve.,Selectaspine,andtwotangencysurfaces.,Selecttwoguidecurves.Youcanenteroneortwolengthvaluestodefinethewidthofthesweptsurface.,c、Circletype圆弧形轮廓,Guidecurve3,Guidecurve1,Guidecurve2,Twoguidesandradius,Centerandtwoangles:,Twoguidesandtangencysurface,Centerandradius,Circletype圆弧形轮廓,Guidecurve3,Guidecurve1,Guidecurve2,Threeguideslines,Oneguidesandtangencysurface,Selectaguidecurves,areferencesurfacetowhichthesweepistobetangent,andenteraradiusvalue.,d、Conictype圆锥曲线形轮廓,FiveGuideCurves,Threeguides,Fourguides,Fiveguides,SweptSurface扫描曲面,Youcanalsospecifyanchorpointsforeachguide.Theseanchorpointsareintersectionpointsbetweentheguidesandtheprofilesplaneortheprofileitself,throughwhichtheguidingcurveswillpass.,Twopoints:selectanchorpointsontheprofilewhichwillbematchedrespectivelytoGuideCurve1and2.Iftheprofileisopen,thesepointsareoptionalandtheextremitiesoftheprofileareused.Pointanddirection:selectananchorpointontheprofilewhichwillbematchedontoGuideCurve1andananchordirection.Ineachsweepingplane,thedefaultx-axis(whichcorrespondstothegivenorienteddirection)isalignedwiththetwoguidecurves,fromGuideCurve1toGuideCurve2.,Iftheprofileismanuallypositioneddefininganchorpointswillpositiontheprofilebetweentheguides,matchingtheanchorpointswithguideintersectionpoints,priortoperformingthesweepingoperation.定位点可以控制罗廓线的位置和形状（即按比例缩放），表明轮廓上哪个点和引导线相对应（当轮廓和引导线不相交时，且轮廓是封闭的）在轮廓起始点处的spine的垂直面与草绘平面的相交线通过轮廓的两个端点时，不用设置定位点，否则需要设置定位点或手动定位轮廓线,SweptSurface扫描曲面,AdaptativeSurfaceSwept自适应扫描曲面,GuidingCurve,Sketchdesignedincontext,Sketch,精度,断面线的约束,FillSurface填充曲面,Boundary1,PassingPoint,Boundary2,Boundary3,Boundary4,Supportof2ndboundary,Supportof4thboundary,与支撑面的连续性,LoftedSurface放样曲面(1/2),TangentSupport,Section1,Section2,Section3,Section4,TangentSupport,ResultingLoftedsurface,重新设置封闭点,曲面在引导线方向的限制范围,利用引导线控制,LoftedSurface放样曲面(2/2),断面曲线参数对应性,RatioTangencyTangencythencurvatureVertices,BlendSurface过渡曲面,Manualcouplingbetweensections,过渡面与支撑面的边界端点施加切失连续约束,定义过渡面的张量,常量(Constant)或线性(Linear),3.Operations:Boundaries提取曲面边界线,Youwillselectapropagationtypetocreateexactlythenecessaryportionofcurve.,Completeboundary,Tangentcontinuity,Nopropagation,Pointcontinuity,Extracting提取几何元素,选择原来没有被选中的对象,提取的元素会被组成几组元素,Pointcontinuity,Tangentcontinuity,Nopropagation,Extracting提取草图元素,删除部分提取草图元素,JoiningGeometry合并几何体(1/2),Element1,Element2,间距或角度小于该值可以合并，否则不能合并,减少合并数量,忽略不能合并的几何体,JoiningGeometry合并几何体(2/2),重新组织要合并的与素：无外衍全部点连续外衍切失连续外衍,Healing修补曲面,Gaptoheal,Gaphealed,Theresultisasinglefeature:,设置修补的间距和角度，小于该值可以修补，否则不能,设定元素不受该操作影响,SmoothingCurves光顺曲线,Tangencycorrected,curvaturecorrected,连续限定值,光顺小于限定值的不连续区域,减少曲线段数,显示箭头,分步显示,显示没有改变的不连续信息,RestoringSurfaces恢复剪切,Disassembling分解几何元素,Domainsonly,AllCells,SplittingandTrimming切断与修剪(1/2),Cuttingelements,Elementtocut,Element1,Element2,SplittingandTrimming切断与修剪(2/2),Splittingandtrimmingwireonsupport:,Elementtotrim,Cuttingelement,Usingasupport,Support,Onlytheselectedelementisremoved.Allotherelementsarekept.,Theselectedelementsarekept.Allotherelementsareremoved.,创建交线,ShapeFillet曲面倒圆(1/2),Smooth,Straight,Maximum,Minimum,HoldCurve,SpineCurve,Thefilletwillbecreatedbetweentwosurfaces,ShapeFillet曲面倒圆(2/2),TriTangent:Thefilletwillbecreatedbetweenthreesurfaces.Itinvolvestheremovalofoneofthethreefacesselected.Selectasurfaceasthefirstsupportelement.Selectanothersurfaceasthesecondsupportelement.Selectthesurfacetoberemoved.Thefilletwillbetangenttothisface.,EdgeFillet棱线倒圆,Limitingelement:,Note:thelimitingelementhastocompletelyintersectthefillet.,Note:Edgesmustbeinternaledges.,VariableFillet变半径倒角,CircleRadiusFilletusingaSpine,Spine,CircleFillet,Limitingelement,Face-to-FaceandTri-tangentFillet面-面、三面相切倒角,TheTri-TangentFilletisavariableradiusFillettangenttoallthreefacesselected.,TransformingElements转换元素,Sixtransformationtypesareavailable:,Translation,Rotation,Symmetry,Scaling等比例,Affinity变比例,AxistoAxis,Extrapolating延长,Surfaceboundary,无外衍点连续外衍切失连续外衍,选择内部边界,NearElement选取最近元素,Youcancreatenearelementsfromanyentitythatisnotconnex.,Nearelementcreatedforoneentityofthesurface.,Nearelementcreatedforoneentityofthesketch.,保留所有元素,InvertingOrientation设定方向,曲面设定方向后，进行偏移等操作即按此方向进行,PatternsandRepetition阵列与复制,Referenceelement,Surfacetopattern,AsinthePartDesignworkbench,youcancreatecircularandrectangularpatternsofwireframeorsurfaceselements.,Elementtopattern,Referenceelement,CreatingLaws创建规则,Reference,Definition,YoucanvisualizetheStartandEndpointsoftheLaw.,参考直线与定义曲线的公共区域,应用公式定义规则,ReusetheselawsinParallelcurvesorclassicsweepscreation.,Parallelcurveusingthelaw,4、Analysis:ConnectChecker曲面连接性检查,DistanceAnalysis,TangencyAnalysis,CurvatureAnalysis,CurveConnectChecker曲线连接性检查,DistanceAnalysis,TangencyAnalysis,CurvatureAnalysis,Overlapping,Displayofthemaximumdiscontinuityvaluesonthecurve.,DraftAnalysis拔模角分析,同partdesign首先,Usingthe“Ontheflyanalysis”youcancheckthedraftangleineachpointoftheshape.,罗盘在曲面上,Z轴方向设置到拔模方向上,MappingAnalysis曲面曲率映射分析,TheBlueareaindicatesthecurvatureorientationchange,首先,CurvatureAnalysis曲线曲率分析,Thistoolcanbeappliedon:Acurve.Asurface(boundariesanalysis).,Curvaturediscontinuities.,5、HybridModelingandVolumes曲面与实体转换,SurfacetoSolidTools,SolidtoSurfaceTools,AccessfromwithinthePartDesignWorkbench,Createasurfaceoffsetfromasolidface,CreateaFillSurfacefromsolidedges,JOINsolidedgesintosectioncurvesthenLOFTbetweenthesesectioncurves,CreateaBlendSurfacebetweentwosolidfaces,Extractasurfacefromasolidface,Split,ThickSurface,CloseSurface,SewSurface,可进行布尔运算,四、其它。CreatingaGroup创建组,组内不包括的元素,HidesallthenodesofanOpenBodyexceptforspecificnodestheuserchoosestosee.,查看组内元素,NewOpenBodyandChanging新建及更改所属范围,SpecifythenodeunderwhichthenewOpenBodywillbeinserted.,SelectnodesfromexistingOpe