主成分分析在白車身焊裝誤差監(jiān)控方面的應(yīng)用研究

1、沈陽理工大學(xué)碩士學(xué)位論文主成分分析在白車身焊裝誤差監(jiān)控方面的應(yīng)用研究姓名：豐云秀申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：車輛工程指導(dǎo)教師：王靈犀20100301沈陽理工大學(xué)碩士學(xué)位論文AbstractThisissueisfromthepracticalengineeringproject.DevelopingasoftwareofmonitofweldingerrinBIWfalimitedliabilitycompany.Fitspresencet

2、omonittheerrBIWWeldingdidresearchdesignuseofhybridprogrammingpracticesthreefunctionalmodules:wavelettransfmationmoduleprincipalcomponentanalysismodulethemainingredientamendingmodule.ErrmonitingoftheunitscommissionedBIWwe

3、ldinglinebythecompiledprogram.BasedonprincipalcomponentanalysistheywaveletanalysisweresearcherrmonitingsystemofBIW.EngineeringroleistoenhancetheweldingqualityofBIWtoimprovethequalityofvehiclemanufacturing.Specificallydis

4、posedmeans:FirsttheuseofwavelettransfmdecompositionofdataintothesystemerrromerrofdatareducingthedeviationofthefactsanalyzedBIWcomplexityffurtheranalysisprocessingimprovestherecognitionrateantinoiseperfmance.Thenprincipal

5、componentanalysisofsystemerrdataaccdingtothecontributionratereducederrpostextractsthemainingredientsthusdiagnoseserrsources.Amendmentstotheprincipalcomponentreuseofmathematicalmodelsusingprincipalcomponentanalysiscovaria

6、ncematrixfdatareconstructiontheprincipalcomponentoftheerroftheamendmenttoamendtheamountofisolatedfixtureusedtoguidethewkofadjustingWeldingfixture.Ultimatelytherealizationofwhichisbasedonprincipalcomponentanalysis(PCA)wav

7、elettransfm(WT)whitebodyweldingqualitymonitingsystem.OnthebasicofprincipalcomponentanalysistheycombinedwithpracticalengineeringneedsproposedamendmentstotheprincipalcomponentalgithmbasicallysolvedthequalitycontrolofBIWass

8、emblyweldingdatainultrapointheamendmentcalculatedweldingfixtureadjustmenttheamountofvalue.Theadvantageisoperableonsiteguide.ApplyingthetheyalgithmscompletedacommissionedunitBIWweldingerrcontrolengineeringapplicationsintr

9、oducedtwoapplicationexamples.Validatetheprincipalcomponentmodelcalculationsoftheweldingfixturerevisedamendmenttothevolumeofweldingerrsinmonitingtheeffectivenessofultradeviatoftheactualmonitingofthewhitebodyassemblyhasapo