Position: Home > Articles > Seed Force in Airflow Field of Vacuum Tray Precision Seeder Device during Suction Process of Seeds
Transactions of the Chinese Society for Agricultural Machinery
2014,45
(6)
97-102+122
吸盘式精密排种装置吸种过程气流场中种子受力研究
作 者：
龚智强;陈进;李耀明;李建华
单 位：
江苏大学机械工程学院;江苏大学农业工程研究院
关键词：
盘式精密排种装置;气吸振动;数值模拟;颗粒受力
摘 要：
运用计算流体动力学软件Fluent研究了吸种区域气流场中的种子颗粒受力。选取相对压力、吸孔孔径、种子与吸孔的距离、种子姿态4个因素进行正交仿真试验,分析排种装置工作参数对气流场中颗粒受力的影响。建立了种子颗粒在气流场中受力数学模型,得出影响种子颗粒受力的因素主次顺序为:种子与吸孔的距离、种子姿态、相对压力、吸孔孔径。吸孔吸附距离范围为0.34~1.90 mm。在精密排种装置试验台上进行试验,试验结果与理论分析基本吻合,表明了所建模型的正确性。
译 名：
Seed Force in Airflow Field of Vacuum Tray Precision Seeder Device during Suction Process of Seeds
作 者：
Gong Zhiqiang;Chen Jin;Li Yaoming;Li Jianhua;College of Mechanical Engineering,Jiangsu University;College of Electronic Engineering and Electricial Automation,Chao Hu University;Institute of Agricultural Engineering,Jiangsu University;
关键词：
Tray precision seeder device Vacuum-vibration Numerical simulation Particle force
摘 要：
Using the computer fluid dynamics software Fluent,the seed particle force in the airflow field of precision seeder device was analyzed. Selecting four factors( relative pressure,aperture of suction hole,distance of seed and suction hole,seed attitude),the seed particle force was studied through orthogonal simulation test,and the impact of precision seeder device working parameters on the particle force was analyzed. The mathematical model of seed particle force in airflow field was established,and the order of the effect factors was as following: distance of seed and suction hole,seed attitude,relative pressure,aperture of suction hole. The range of suction hole adsorption was 0. 34 ~ 1. 90 mm. Conducting experiment on the vacuum-vibration tray precision seeder device,the results of experiment were consistent with the theoretic analysis and show the correctness of the established model.
导出引用
计量
文章访问数: 19
HTML全文浏览量: 0
PDF下载量: 0
所属期刊
