汽車減速器外殼凸緣零件損傷因子與應(yīng)力分析研究

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中圖分類號：U463.218 文獻標識碼：A 文章編號：1003-8639（2025）06-0120-03

ResearchonDamage Factorsand StressAnalysisofFlangePartsofAutomobileReducer！

Liu Lili，Wang Jingjing （Shangqiu Instituteof Technology，School of Mechanical Engineering，Shangqiu 476ooo，China）

【Abstract】This article aims at the problem that the flange parts of theautomotive reducer housing are prone to failureundercomplexloads.Combinedwiththedamagefactortheoryand stressanalysismethod，thefiniteelement numerical simulation technologyisadoptedto conduct asystematic studyon its damage mechanism and stress distribution.Byestablishing thedamage factormodelandthe stressanalysis model，the stressconcentrationareasand damageaccumulation lawsof the parts under diferent working conditionsare simulated.Theresultsshow thattherootof theprotruding edgeisthekeydamage area，withthedamage factorreachingup to2.57，approachingthefatigue limitof the material.Undertheactionofforming load，thestresspeak at theconvex arcontheoutsideof theconnection joint reaches53oMPa，whichissignificantlyhigherthantheyield strengthof thematerial.Theresearchadopts high-strength materials to optimize the flange structure design andadjusts the geometric parameters to reduce stress concentration.The ffectiveessofnumericalsimulationtechnologyinpredictingthefailureriskofpartsandoptimizingdesignisverified， providing theoretical supportandengineering practiceguidanceforimprovingthereliabilityofautomotivetransmission systems.

【Key words】 flange parts；damage factor；stress analysis；numerical simulation

0 引言

汽車工業(yè)的迅猛發(fā)展使汽車零部件的技術(shù)要求日益提高，其中關(guān)鍵部件一減速器外殼的凸緣零件的可靠性問題和安全性問題是目前主要技術(shù)目標。（剩余3376字）