基于EDEM的采煤机螺旋滚筒受力及优化研究-豆柴文库

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基于EDEM的采煤机螺旋滚筒受力及优化研究
Title:ForceAnalysisandOptimizationofCoalCuttingDrumBasedonEDEM
Abstract:
Thecoalcuttingdrumisoneofthemostcriticalcomponentsinacoalshearer,playingavitalroleincoalminingoperations.Inthisstudy,weaimtoinvestigatetheforcedistributionandoptimizethedesignofthecoalcuttingdrumusingtheDiscreteElementMethod(EDEM).Theevaluationoftheforcesactingonthedrumwillhelpinpredictingitsperformanceandenhanceitsoverallefficiency.Throughanalysisandoptimization,wecanbetterunderstandthefactorsaffectingtheforcedistributionandimprovethedesignofthecoalcuttingdrum.
1.Introduction
Coalminingisanessentialindustryformeetingglobalenergydemands.Coalshearers,equippedwithcuttingdrums,arewidelyusedinundergroundminingoperations.Theefficiencyofthecuttingdrumdirectlyinfluencestheproductivityandeconomicviabilityofcoalmining.Therefore,itiscrucialtostudytheforcedistributiononthecuttingdrumandoptimizeitsdesigntoimproveperformance.
2.Methodology
TheDiscreteElementMethod(DEM),apowerfulnumericalmodelingtechnique,isusedinthisstudy.EDEM,acommercialsoftwarebasedonDEM,isemployedtosimulatetheinteractionbetweencoalandthecuttingdrum.Thecuttingdrum'sgeometry,materials,andoperationalconditionsaredefinedinthesimulationmodel.
3.ForceAnalysis
ByapplyingtheDEMsimulation,wecananalyzetheforcesactingonthecoalcuttingdrum.Theseforcesincludecontactforcesbetweenthedrumandcoal,cuttingforces,androtationalforces.Throughvisualrepresentationanddataanalysis,wecanunderstandtheforcedistributiononthedrumandidentifyareasofhighstressandpotentialfailure.
4.Optimization
Basedontheforceanalysisresults,wecanoptimizethedesignofthecuttingdrum.Severaldesignparameters,suchasdrumshape,bladearrangement,rotationalspeed,andcuttingdepth,canbesystematicallyvariedtoachievethedesiredforcedistribution.Thegoalistominimizestressconcentrations,reducewear,andmaximizecuttingefficiency.
5.ResultsandDiscussion
Theforcedistributionanalysisprovidesinsightsintotheperformanceofthecoalcuttingdrum.Bycomparingvariousdesignconfigurations,wecanidentifytheo