變工況異源域刀具磨損均衡聯(lián)合分布適配識別
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中圖分類號：TH164 文獻(xiàn)標(biāo)志碼：A 文章編號：1671-5276（2025）03-0110-06
Tool Wear Identification Basedon Balanced Joint Distribution Adaptation in Different Source Regions under Variable Working Conditions
LI Xiaoguang， ZHANG Liheng （Hebei Science and Technology Engineering Shool，Baoding O71O3O，China）
Abstract：Inodertoimprovetheaccuracyof tolwearidentificationinthecaseofvariableworkingconditionsandheterogeneous samples，atol wearidentificationalgorithmbasedonbalancedjointdistributionadaptationisproposed.Thetol wear mechanismandwearprocesscharacteristicsareanalyzed，andthetolweareature spaceisconstructedfrommultipledomain.To copewiththefailureindeterminingthedistributionadaptationconcernduetothediferenceofedgedistributionandthe dierenceofconditionalprobabilitydistribution，anequilibriumjointdisributionadaptationmethodisproposedtoachievethe optimaladaptationefectofthesouredomainandtargetdomain.Thebalanced jointdistributionadaptationandKNNalgorithm areappliedtotheidentificationoftoolwearundervariableworkingcondions.Theexperimentverifiesthattheaverage recognition accuracy of balanced joint distribution adaptation and KNN iteration is 92.59% ，17.28 per cent higher than that of JDA + KNNmethod，indcatingthatthebalancedjointdistributionadaptationhasadvantagesintolwearidentificationindifferent regions.
Keywords：tool wear；balanced joint distributionadaptation；variable workingconditions；samplesof diferent sourceregions; iterativeidentification
0 引言
切削加工是制造業(yè)的基礎(chǔ)加工方式，在切削加工過程中，刀具會伴隨有磨粒磨損、疲勞磨損等[1]。（剩余7908字）