油菜联合收割机割台拨禾装置的运动仿真及试验研究-农业机械化工程专业论文.docx

江苏大学硕士学位论文Thispaperfirstlyintroducedtheresearchstatusandstudyoverviewaboutthe headerofthecombineharvesterbotllathomeandabroad，andanalyzedtheproblemsexistingincurrentcombineharvestersheaderathome，thenshoweditisneCe豁arytOconducttheoreticalandexperimentalstudiesoftheheaderdeviceaboutthecombineharvestenThroughtheanalysisofthestructuralcharacteristicsoftheheaderandmovementanalysisofthereel，establishedthemotionmathematicalmodelofthereel，andtheadjustmentofreel’Srelativedistanceandtheconfirmationofreelrotatingspeedandthecalculationofpowerconsumption．Aiming attherapesconfigurationparameters，agriculturalcharacteristics，physicalandmechanicalcharacteristics，studiedandsummarizedthecharacteristicsoftheheaderofrapecombineharvester．Introducedvirtualprototypingtechnologyinthedesignofheader,toexploretheapplicationmethodofadvancedCADtechnologyinthedesignofagriculturalmachinery．BuildedupanentitymodeloftheheaderbyPro／E，andthemodelwasintroduced intoADAMSthrough the Mechanism／Pro interface．Its dynamicsimulationofwasconducted，andfoundouttheorbitofreelmotionandvelocitycurvesandaccelerationcurves．Thesimulationresultaccordedwiththeanalysisoftheory,thisofferedthebasisforfollowingrealtest．Finallyonthebasisoftheoreticalanalysisandsimulationresults，thebench—testofharvestWasconducted．Throughsingle factorexperiment，foundtheeffect lawofeveryfactortoheaderloses．Basedonthesinglefactorexperiment，throughoptimalmethodconductedorthogonaltest, rangeanalysisandvarianceanalysiswereperformedforthetestdata．Atlastthebestsuitableparameterswerefoundedfortheheaderdevice．ThenusedregressivemathematicsmethodandDPS(Data ProcessingSystem)systemtosetuptheforwardvelocity,reelrotatingspeedandverticaldistanceofreelrelativetOcutterbar mathematicmodels．Intheend，usedthecomputertocarryonsensitivityanalysisandOlbtimizetheparametersofregressivemathematicsmodels．Keywords：Rape；Combine harvester；Header；Motionsimulation；Losses；Experimentalstudy；Ⅱ学位论文版权使用授权书本学位论文作者完全了解学校有关保留、使用学位论文的规定，同意学校保留并向国家有关部门或机构送交论文的复印件和电子版，允许论文被查阅和借阅。本人授权