农业装备与车辆工程
農業裝備與車輛工程
농업장비여차량공정
AGRICULTURAL EQUIPMENT & VEHICLE ENGINEERING
2015年
5期
1-4
,共4页
玉米根茬%根土分离%运动学%动力学%仿真
玉米根茬%根土分離%運動學%動力學%倣真
옥미근치%근토분리%운동학%동역학%방진
corn stubble%roots-soil separating%kinematics%dynamics%simulation
针对玉米根茬根土分离关键环节，以飞锤击打根土分离机构为研究对象，在Pro/E中建立飞锤击打根土分离机构刚体模型并将其导入ADAMS中，在ADAMS中完善钢丝绳柔性体模型并进行运动学仿真和动力学仿真。通过改变对分离效果有影响的各个因素包括飞锤速度、飞锤质量和敲击角度等，观察其对根土模型的碰撞力大小，绘制关系曲线，分析其影响的大小和敏感度。该研究可为玉米根茬收获机分离机构的设计提供参考和依据。
針對玉米根茬根土分離關鍵環節，以飛錘擊打根土分離機構為研究對象，在Pro/E中建立飛錘擊打根土分離機構剛體模型併將其導入ADAMS中，在ADAMS中完善鋼絲繩柔性體模型併進行運動學倣真和動力學倣真。通過改變對分離效果有影響的各箇因素包括飛錘速度、飛錘質量和敲擊角度等，觀察其對根土模型的踫撞力大小，繪製關繫麯線，分析其影響的大小和敏感度。該研究可為玉米根茬收穫機分離機構的設計提供參攷和依據。
침대옥미근치근토분리관건배절，이비추격타근토분리궤구위연구대상，재Pro/E중건립비추격타근토분리궤구강체모형병장기도입ADAMS중，재ADAMS중완선강사승유성체모형병진행운동학방진화동역학방진。통과개변대분리효과유영향적각개인소포괄비추속도、비추질량화고격각도등，관찰기대근토모형적팽당력대소，회제관계곡선，분석기영향적대소화민감도。해연구가위옥미근치수획궤분리궤구적설계제공삼고화의거。
In order to analyse the kinematics and dynamics characters of the flyweights-hit roots-soil separation mechanism, which works as the key process of mechanical harvest for corn stubble, a simulation was conducted as following. Firstly, a rigid model of flyweights-hit mechanism was established using Pro/E. Secondly, above model was imported to ADAMS. Thirdly, the flexible model of steel cable was added for simulation. Furthermore, factors including the flyweights-hit speed, the mass of flyweights and the hitting angle that influence the separation effect were changed to obtain the relationship between hitting force and influence factors. The study can provide a reference for designing the roots-soil separation mechanism of corn stubble.
