’,ZhangJian,XiaoJie’,WangYing。,GongMingsheng(1-BijieInstitueofAgricultureMachinery,Bijie,551700,China;2.BijiePolytechnicSchool,Bijie,551700,China;3.pany,Lanzhou,730000,China)Abstract:plexsoilenvironment,themodelofthesoilwhichisclosetotheactualenvironmentwasbuilttounderstandthecuttingresistanceinfluenceofthestemmixture.ThesimulationofthestemandsoilmixturecuttingbycolterfromsmallworkingcoleseedseederwasconductedbyusingtheLS—dynasoftware.Withthefurrowopenerworkingat0.84m·s一and15rad·s一.themaximumcuttingresistanceforceis24.5Nwhencoltercuttingsoil,andthemaximumcuttingresistanceforceis573Nwhencoltercuttingstemandsoil.Therationalityofthesimulationwasverifiedbytheoreticalcalculation,whichprovidesreferencefortheoptimizationdesignofcoleseedseederparameters.Keywords:colter;LS—dyna;stemlsoil;simulation
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