基于有限元的山核桃树振动采摘研究  

Study on Hickory Vibration Picking Based on FEA

作　　者：仇高贺[1,2] 

机构地区：[1]温州职业技术学院,浙江温州325000 [2]浙江理工大学机械与自动控制学院,浙江杭州310018

出　　处：《安徽农业科学》2016年第5期312-315,共4页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金资助项目(11272287;51175476);浙江省教育厅资助项目(JB076)

摘　　要：果实人工采摘成本较高,且对于生长在陡峭山地的山核桃果实采摘而言,存在一定的危险。因此研究果实振动采摘原理,实现果实的机械采摘有重要意义。分步建立果树柔性梁、树根与地面连接的数学模型,在理论基础上分别建立果树、树根、激励力锤的柔性模型,并在有限元软件中进行果树振动采摘和采摘机构相关的动力学分析。该方法与现场果树振动采摘激励数值比较接近,可以作为研究和设计果树振动装置的一种方法。Artificial fruit picking cost is higher, and there is a certain risk for the walnut fruit picking which grow in steep mountain. Therefore, studying fruit vibration picking mechanism and realizing fruits mechanical harvesting are of great significance. The mathematical model of flexible beam, roots and ground connection was established step by step, on the theoretical basis, flexible models of fruit trees, roots and incentive hammer was built respectively. Dynamics analysis was conducted on vibration picking and related mechanism in FEA software. The result showed the flexible vibrate mode tree is close to the value of experiment, which can be utilized for researching and designing fruit tree vibration device.

关 键 词：果品 收获 振动 有限元 

分 类 号：S225.93[农业科学—农业机械化工程]