振動焊接與同步陣列式振動系統(tǒng)的基礎(chǔ)研究.pdf

1、上海交通大學碩士學位論文振動焊接與同步陣列式振動系統(tǒng)的基礎(chǔ)研究姓名：張超申請學位級別：碩士專業(yè)：材料加工工程指導教師：陳立功20080221上海交通大學碩士學位論文振動焊接與同步陣列式振動系統(tǒng)的基礎(chǔ)研究張超IVBASICRESEARCHOFVIBRATIONWELDINGSYNCHRONIZEDARRAYVIBRATIONSYSTEMABSTRACTWeldingresidualstressdisttioninfluenceunderd

2、ifferentvibrationaccelerationwasstudiedonA105steelthroughexperiments.Theresearchindicatedthatunderthe0.6gvibrationaccelerationcanobtainthebestvibrationeffect.Effectsofvibratywelding(VW)ontheresidualstressdisttionbothinmu

3、ltipassweldingmultipassgirthbuttweldedpipeswerestudiedwhenthevibrationaccelerationwassetas0.6g.TheresearchindicatedthattheVWcanreducetheweldingresidualstressthedisttioneffectively.Consideringthattraditionvwtechnologymayc

4、ausegreatenergyconsumptionisunabletoguaranteethevibrationunifmitythepaperproposedanewvibrationweldingtechnology.Thesystemusedmultiplesynchronizedvibrationexcitersconstitutedoftheexcitationarraywhicharrangedaccdingtoacert

5、ainrule.Itguaranteedthevibrationunifmityofmoltenpool.Systemdevelopmentbasedonthehardwaredesignthroughsoftwaresupptimprovedoverallperfmance.Withcrystaloscillatfrequencymodulationsoftwareauxiliaryfrequencymultiplicationsin

6、glevibrationexciterfrequencycontrolwasrealized.Multiplevibrationexcitersynchronizationwasachievedthroughphaselockedloop.Appropriatevibrationarraywasdesigned.Accelerationsenswasdevelopedfthevibrationsignaldetectionfeedbac

7、k.Completeinteractivegraphicaluserinterfacewasdesignedbasedonsoftwarewhichusedtosetallsystemparameters.Dataacquisitionanalysischannelmonitingphasedifferencecomputationfunctionsoonwascreatedthroughsoftwareprogramming.Ther