Optimization and experimental analysis of sweet potato ship-shaped transplanting trajectory using particle swarm algorithm  

作　　者：Zhengduo Liu Lin Hua Zhaoqin Lyu Jiaji Hu Wenxiu Zheng 

机构地区：[1]College of Mechanical and Vehicle Engineering,West Anhui University,Lu’an 237000,Anhui,China [2]Traditional Chinese Medicine Institute of Anhui Dabie Mountain,West Anhui University,Lu’an 237012,Anhui,China [3]College of Mechanical and Electronic Engineering,Shandong Agricultural University,Tai’an 271018,Shandong,China [4]Anhui Zhengyang Machinery Technology Co.,Ltd.,Lu’an 237012,Anhui,China

出　　处：《International Journal of Agricultural and Biological Engineering》2024年第3期100-107,共8页国际农业与生物工程学报（英文）

基　　金：financially supported by Scientific Research Project of Colleges and Universities in Anhui Province(Grant No.2023AH052645);West Anhui University 2022 High-Level Talent Research Project(Grant No.00701092347);the Fund of Traditional Chinese Medicine Institute of Anhui Dabie Mountain(TCMADM-2024-16).

摘　　要：The mechanization of ship-shaped transplanting is currently an urgent problem that should be solved.The movement trajectory of the transplanting mechanism is the key technology to perform ship-shaped transplanting.In this study,a ship-shaped transplanting trajectory was built and a mathematical model of a four-link transplanting mechanism was developed based on the requirements of the sweet potato transplanting agronomic technology.The particle swarm optimization algorithm was used,with the length of the four-bar mechanism and the installation angle of the fixed bar serving as the variables to optimize.The objective was to minimize the deviation of the ship-shaped transplanting trajectory,yielding an iterative optimization solution.The MATLAB simulation results showed that the penalty factors of different proportions in the adaptive particle swarm optimization algorithm affected the transplanting trajectory.The optimal penalty factor parameters areα=0.6,β=0.4.They ensure that the transplanting trajectory fulfills the agronomic requirements,and limit the deviation in the return trajectory of the mechanism.The sizes of the optimized four-bar mechanism were 110,312,245,160,360,and,160 mm.The determined installation angle was 100°.The results of the field experiments demonstrated that the optimized four-bar transplanting mechanism can better fulfill the agronomic technical requirements of sweet potato ship-shaped transplanting.For a transplanting speed of 0.2 m/s,the average qualified rates of insertion depth,insertion length,and tail height were equal to 94.00%,93.83%,and 91.67%.The results obtained in this study provide a theoretical basis and technical support for studying and developing sweet potato ship-shaped transplanting machinery.

关 键 词：sweet potato oblique insertion method mechanical arm particle swarm 

分 类 号：S35[农业科学—作物栽培与耕作技术] S531[农业科学—农艺学]