摘要
Quinoa is an ancient crop that is nutritious,balanced,and suitable for most people.However,it has not been known and sought by the public until modern times.In recent years,quinoa has been intensively known and widely grown in China.Quinoa mechanized production machines have also been developed.With the help of DEM,we design and optimize the quinoa combined seeder,improving seeding efficiency and quality.In this paper,the basic physical and contact mechanics parameters required for the Hertz-Mindlin(no slip)of quinoa seeds in EDEM software were determined.The coefficient of rolling friction of quinoa seeds was calibrated on DEM,and which of Long Quinoa 4 is 0.043,and that of Meng Quinoa 4 was 0.016.Meanwhile,we can find that the coefficient of rolling friction strengthens the shape to restrict rolling and weakens the shape to increase rolling.The above research provides simulation parameters for the design and optimization of quinoa seed seeding machinery.
基金
supported by China Agriculture Research System of MOF and MARA(Grant No.CARS-14-1-28)
Gansu Province Agricultural Science and Technology Innovation Project(Grant No.2021GAAS23)
the National Natural Science Foundation of China grant number(Grant No.52065004,52365030).
作者简介
Linrong Shi,PhD,Associate Professor,research interest:key technologies and equipment for precision seeding in northwest cold and arid zone,Email:shilr@gsau.edu.cn;Corresponding author:Wuyun Zhao,PhD,Professor,research interest:agricultural mechanization engineering.Mechanical and Electrical Engineering College,Gansu Agricultural University,Lanzhou 730070,China.Tel:+86-15101322368,Email:zhaowy@gsau.edu.cn;Bugong Sun,PhD,Professor,research interest:crop production equipment project in northern dry zone,Email:sunbg@gsau.edu.cn;Wei Sun,Professor,research interest:agricultural mechanization engineering,Email:sunw@gsau.edu.cn;Gang Zhou,Master,Research assistant,research interest:key technologies and equipment for precision seeding in northwest cold and arid zone,Email:2987869252@qq.com.
