简介：Threekindsofmathematicalmodelsrepresentingweldingheatsourcesarepresented.Amongthem,Gaussianmodelanddoubleellipsoidalmodelareusedtoanalyzethethermaldistributionswithfiniteelementmethod.Atthesametime,thispaperanalyzedtheinfluencesoftheheatsourcemodels,thelatentheatandtheweldingparametersonthetemperaturedistributions.Thecomparisonsbetweenthesimulatedresultsandtheexperimentsshowdoubleellipsoidalmodelisgoodforthree-dimensionalnumericalsimulations.Furthermore,theadaptivemeshtechniqueisappliedinthethree-dimensionalmodelwhichgreatlyreducesthenumberofnodesandelementsinthesimulation.

简介：1ＩｎｔｒｏｄｕｃｔｉｏｎＳｏｍｅｏｒｇａｎｉｃｃｏｍｐｏｕｎｄｓｃａｎｔｒａｎｓｆｅｒｅｎｅｒｇｙａｂｓｏｒｂｅｄｉｎＵＶｒｅｇｉｏｎｔｏｒａｒｅｅａｒｔｈｉｏｎｓｗｈｉｌｅｔｈｅｙｃｏｏｒｄｉｎａｔｅｄｗｉｔｈｔｈｅｉｏｎｓａｎｄｔｈｅｎｔｈｅｒａｒｅｅａｒｔｈｉｏｎｓｅｍｉｔｃｈａｒａｃｔｅｒｉｓｔｉｃｆｌｕｏｒｅｓｅｎｃｅ.Ｔｈｅｌｕｍｉｎｏｕｓｉｎｔｅｎｓｉｔｙａｎｄｌｉｆｅｔｉｍｅｏｆｔｈｅｃｏｏｒｄｉｎａｔｅｄｒａｒｅｅａｒｔｈｉｏｎｓｉｓｍｕｃｈｍｏｒｅｔｈａｎｔｈｏｓｅｏｆｔｈｅｆｒｅｅｉｏｎｓ.Ｓｏｓｃｉｅｎｔｉｓｔｓｔａｋｅａｎｉｎｔｅｒｅｓｔｉｎｔｈｅｓｅｃｏｍｐｌｅｘｅｓ[1,2].Ｉｎｔｈｉｓｐａｐｅｒ,ｉｎｏｒｄｅｒｔｏｓｅｅｋｎｅｗｌｕｍｉｎｏｕｓｍａｔｅｒｉａｌｅｘｉｔｅｄｗｉｔｈｌｏｗｅｒｅｎｅｒｇｙ,ＥｉｇｈｔｃｏｍｐｌｅｘｅｓｏｆＥｕ3+ｗｉｔｈｐｙｒｉｄｉｎｅ2,6ｄｉｃａｒｂｏｘｙｌｉｃａｃｉｄ(Ｈ2ＤＰＣ)、1,10ｐｈｅｎａｎｔｈｒｏｌｉｎｅ(ｐｈｅｎ)ａｎｄｍｅｔｈｙｌｂｅｎｚｏｉｃａｃｉｄ(ＭＢＡ),ｉｎｃｌｕｄｉｎｇ...

简介：Inthethree-wireweldingsystem,aweldingprocessconsistsoftheoperationsoffourdevices,namelythreeweldingmachinesandonebogie.Theoperationsneedtobesynchronizedbyanumericalcoordinatecontroller(NCC).Inthispaper,wewilldiscussatask-job-procedurecubicprogramstructure.Underthisstructure,thedevicesaresynchronizedandisolatedatthesametime.Thiscubicprogramstructurecanalsobeusedasareferenceforothermulti-deviceormulti-unitmanufacturingprocesses.

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