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Simulation and Optimization of a Rotary Cotton Precision Dibbler Using DEM and MBD Coupling

Author

Listed:
  • Long Wang

    (College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
    Xinjiang Production and Construction Corps (XPCC) Key Laboratory of Utilization and Equipment of Special Agricultural and Forestry Products in Southern Xinjiang, Alar 843300, China)

  • Xuyang Ran

    (College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
    Xinjiang Production and Construction Corps (XPCC) Key Laboratory of Utilization and Equipment of Special Agricultural and Forestry Products in Southern Xinjiang, Alar 843300, China)

  • Lu Shi

    (College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
    Xinjiang Production and Construction Corps (XPCC) Key Laboratory of Utilization and Equipment of Special Agricultural and Forestry Products in Southern Xinjiang, Alar 843300, China)

  • Jianfei Xing

    (College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
    Xinjiang Production and Construction Corps (XPCC) Key Laboratory of Utilization and Equipment of Special Agricultural and Forestry Products in Southern Xinjiang, Alar 843300, China)

  • Xufeng Wang

    (College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
    Xinjiang Production and Construction Corps (XPCC) Key Laboratory of Utilization and Equipment of Special Agricultural and Forestry Products in Southern Xinjiang, Alar 843300, China)

  • Shulin Hou

    (College of Engineering, China Agricultural University, Beijing 100083, China)

  • Hong Li

    (College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
    Xinjiang Production and Construction Corps (XPCC) Key Laboratory of Utilization and Equipment of Special Agricultural and Forestry Products in Southern Xinjiang, Alar 843300, China)

Abstract

Investigating the seeding mechanism of precision seeders is of great significance for improving the quality of cotton sowing operations. This paper designs a rotary type-hole cotton precision mulching dibbler. The main factors influencing the entry of cotton seeds into the seed wheel holes during the seeding process are then theoretically analyzed. Following this, an accurate discrete element model of coated cotton seeds is established and combined with a discrete element method (DEM) and multi-body dynamics (MBD)-coupled simulation model of the seed drill for seed picking and planting. Simulation experiments on the seeding performance of the precision dibbler were performed to study the influence of the seed wheel structure and motion parameters on the picking and planting performance under different speeds. The optimal parameter combination for the seed wheel is obtained through optimization experiments, and a precision dibbler is manufactured for bench testing. The bench test results are consistent with the simulation test results. At the precision dibbler rotation speed of 16 r/min, the qualified index reaches a maximum value of 93.28%, the skip sowing index increases with the precision dibbler rotation speed, and the re-sowing index decreases as the speed increases. These optimization results significantly improved seeding precision and efficiency and are of great significance for the reliability and effectiveness of cotton sowing operations.

Suggested Citation

  • Long Wang & Xuyang Ran & Lu Shi & Jianfei Xing & Xufeng Wang & Shulin Hou & Hong Li, 2024. "Simulation and Optimization of a Rotary Cotton Precision Dibbler Using DEM and MBD Coupling," Agriculture, MDPI, vol. 14(8), pages 1-21, August.
  • Handle: RePEc:gam:jagris:v:14:y:2024:i:8:p:1411-:d:1460162
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