MDT環(huán)境下RP數(shù)據(jù)處理與設(shè)備驅(qū)動程序的研發(fā).pdf

1、河北工業(yè)大學碩士學位論文MDT環(huán)境下RP數(shù)據(jù)處理與設(shè)備驅(qū)動程序的研發(fā)姓名：陳青果申請學位級別：碩士專業(yè)：測試計量技術(shù)及儀器指導(dǎo)教師：徐安平20040201———————————————』旦I塹縫工B!鏨垂齄型皇超置塑蟄握壁曲叢筮RESEARCHANDDEVELoPMENToFDATAPRoCESSINGANDDEVICEDRIVENSYSTEMFoRRAPIDPRoToTYPINGBASEDoNMDTABSTRACTAsakindofr

2、isingintegratedtechnologies，RapidPrototyping(RP)technologyisrapidlydevelopingwiththedevelopmentofvariousenablingtechnologies，suchasComputerAidedDesign(CAD)andNumericalControl(NC)etcNowadays，nearlyalltypesofrapidprototypi

3、ngsystemscommonlyadoptSTLfileastheirdataexchangeinterfaceTheSTLfileisatriangnlarizationrepresentationofCADmodelsurfaceUsingittepresentCADmodelwillreducethepartprecisionTheexistingRP—relatedsoftwareincludeaCADmodule，adata

4、processingmodule，andamonitoringandcontrollingmodule，whichareindependentofoneanotherThus，thepreprocessingprocedureofRPisrathercomplicatedAimingattheissuesabove，thisthesisdealswiththedirectandadaptiveslicingmethodsofCADmod

5、el，anddevelopsthedataprocessinganddevicedrivensystembasedontheMechanicalDesktop(MOT)softwareTheworkofthisthesislaysasolidfoundationfortheintegrationofCAD，CAPPandRPThemainworkmaybesummarizedasfollows：(1)Afterdiscussingall

6、kindsofexistingalgorithms，thisthesispresentsanewkindofadaptiveslicingalgorithmthatdeterminestheslicingthicknessbycomprehensivelyconsideringthesurfacenormalandthecross—sectionalareaAndforthesamepart，acomparisonbetweenthea

7、daptiveslicingandtheequal—thicknessslicingmethodsisperformedTheresultsshowthattheadaptiveslicingmethodcangreatlyimprovethemanufacturingefficiencyintheequivalentprecisionTheadaptiveslicinggainsadvantageovertheequal—thickn

8、essslicing(2)BasedonacloseresearchoftheinteriorrepresentationofCADmodelinMDT，thisthesispicks—uptheinteriortopologicalandgeometricalinformationofmodelexpressedintheboundaryrepresentation(B—Rep)usingthedevelopmenttoolsofOb

9、jectARXandMDTAPIofferedbyAutodeskIncThepicking一印informationmakesitsuccessfultoimplementtheadaptiveslicingmethod(3)Thedirectslicingdataareprocessedinordertoaccuratelyextractandreconstructthedatainforelationofthe2Dcontours