CAJ | 학술논문

　　针对2 BMF-4型免耕播种机组的结构特点，采用局部柱坐标系下的自由度耦合技术模拟机组的孔、轴连接，采用COMBIN 14弹簧单元模拟镇压轮弹簧，建立了与机组结构和工作条件一致的有限元模型。同时，分析了旋耕刀、开沟器、镇压轮的工作状态和所受外力。在此基础上，利用ANSYS 软件对2 BMF-4型免耕播种机组进行了有限元分析。从分析结果看，播种机的应力分布状况与实际情况一致，播种机整体受力符合设计要求。
　　침대2 BMF-4형면경파충궤조적결구특점，채용국부주좌표계하적자유도우합기술모의궤조적공、축련접，채용COMBIN 14탄황단원모의진압륜탄황，건립료여궤조결구화공작조건일치적유한원모형。동시，분석료선경도、개구기、진압륜적공작상태화소수외력。재차기출상，이용ANSYS 연건대2 BMF-4형면경파충궤조진행료유한원분석。종분석결과간，파충궤적응력분포상황여실제정황일치，파충궤정체수력부합설계요구。
According to the structural features of 2 BMF-4 no-till planter , the holes and shaft link were simulated by coupled degrees of freedom technology under local cylindrical coordinate system , the press wheel spring was simulated by COMBIN14 ,and the finite element model was established consistent with the structure and working conditions .The work-ing condition of rotary blade , opener and the press wheel were analysed , and the force were calculated .On that basis 2 BMF-4 no-till planter was analysed with finite element method .The calculation indicates stress distribution of no-till planter is similar with the practical situation , and it satisfy the design requirement .