英文-土壤和耕作研究.docxSoilandTillageResearchVolume171,August2017,Pages1-8Soil&TillageResearchApowerestimatorforanintegratedactive-passivetillagemachineusingthelawsofclassicalmechanicsImanAhmadiShowmorehttps:///..■,powerrequirementofanintegratedactive-passivetillagemachinewasinvestigatedusingatheoreticalprocedure・Toachievethisgoal,,theerrorpercentageoftheestimatorinpredictingdraftforce,rotationalpower,drawbarpower,andnegativedraftofanintegratedactive-parisonwiththeexperimentaldataofWeise(1993)were16%,47%,6%,and3%,,al.(1979).Furthermore,therewerepromisingcorrelationsbetweenestimatedtorquesinthisstudyandthestudyofAnpatandRaheman(2017),aswellasbetweenestimateddraftforcesandpowersinthisstudyandthestudyofShinnersetal.(1993).Finally,consideringthecorrelationsbetweenthedataobtainedhereinandthestudyofManianandKathirvel(2001),theestimatordevelopedinthisstudypredictedthevaluesofdraftforce,draftpower,,itoverestimatedthevalueofdraftforce,,;Activeandpassiveimplements;PTOanddrawbarpowers1・(adrivenimplement)isobtainedthroughthetractorpowertakeoff(PTO)shaft;apassivetillagemachine(adrawnimplement)
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