《汽車車身基于catia軟件的參數(shù)化建?！酚蓵T上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。

1、參數(shù)化建模StartModle］琴xyplane1誦醸yzplaneIzxplane■'J.1■氣AxisSystemsLHPart—Externalgeometry—簽’FinalpartPartdefinition人-絡(luò);■CAD_Deliverables1.零件名稱(PARTNUMBER)XXX-XXXXX-XOO-OOO-REINF-ROOFSIDEGRAB-ZSLS-20110705分別是：車型代號、零件的序號、版木號、英文名、設(shè)計(jì)者、曰期具體格式可以不按照此例2.年身坐標(biāo)系(AxisSystems)

2、3.參數(shù)(Parameters)4.零件實(shí)體數(shù)據(jù)(PartBody)用來存放實(shí)體數(shù)據(jù)，名稱可根據(jù)實(shí)際修改5.外部數(shù)據(jù)(Externalgeometry)6.最終結(jié)果(Finalpart)A：獨(dú)立零件Finalpart5^Inverse.1B：左右完全對稱或局部不對稱的左右零件，須注明7.零件設(shè)計(jì)過程(PartDefinition)PartdefinitionreferencepointreferencepointENGToolDirectionreferencepointNorPlane/Line.lMain^

3、PartreferencestructurebasicsurfecedepressionsflangestrimholesMain^Partreferencestructure^BlIreferencep°int-1胃Plane.XY:::::::::::::::::::::::——Plane.XZSketch.XY—Common_LH/RH_FeaturesUnique_LH_Side_FeaturesUnique_RH_Side_FeaturesCAD_Deliverablesf么Sketch.YZMSke

4、tch.XZ8.關(guān)鍵截面(Section)開孔方式，易修改的鈑金開孔CAD_Deliverables—Material-X-SectionCenter_Points/UnesLH/RHholelHolePointHoleProjectHoleLine卜議攀HolePlaneIHoleSketch遍-今FExtrude.1Extrude.1Surface.1-電LH—毯1RHMatching一Surfece_Boundary注意事項(xiàng):1,Mainpart??referencestructure??referenc

5、epoint與ENG_TOOL_DERECTION??referencepoint關(guān)聯(lián)相合，這樣之后的參數(shù)化不依賴于運(yùn)件，連接有序且緊密2,模板草圖XZ方向是否正確，3,各草圖內(nèi)部，虛線符號不要被激活，否則后期工作量增加。4,注意隱藏的部位，這樣的方式做參數(shù)化的時(shí)候退出草閣就不會“亂了”，進(jìn)入草圖也是“有路可循”的。HSketch.XY由-卿AbsoluteAxis—」Origin一=>HDirectionL=?VDirection5,不依賴于插件的快速逆向參數(shù)化方法三點(diǎn)確定平面。referencepoint前

6、的部分可以刪掉，OK。不懂并不表示不存在。Point.6P0int.7Point.8ceUntrim.1Extrapol.lreferencepointPlane.XYPlane.YZPlane.XZExtrude.36，這樣的結(jié)局。1+2=?+3=?+4=?結(jié)果basicsurfaceFillet.1Rllet.2face4referencepointPlane.XYPlane.YZPlane.XZSketch.X丫Sketch.YZSketch.XZFillet.37,點(diǎn)云上點(diǎn)數(shù)不夠多不均勻怎么辦，（征對零

7、件導(dǎo)出的點(diǎn)云）Meshsmoothing點(diǎn)云冇破洞用meshcleaner