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Article

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

1
College of Mechanical and Electronic Engineering, Tarim University, Alar 843300, China
2
Xinjiang Production and Construction Corps (XPCC) Key Laboratory of Utilization and Equipment of Special Agricultural and Forestry Products in Southern Xinjiang, Alar 843300, China
3
College of Engineering, China Agricultural University, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Agriculture 2024, 14(8), 1411; https://doi.org/10.3390/agriculture14081411
Submission received: 27 July 2024 / Revised: 16 August 2024 / Accepted: 18 August 2024 / Published: 20 August 2024

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.
Keywords: discrete element method; multi-body dynamics; coupling simulation; dibbler discrete element method; multi-body dynamics; coupling simulation; dibbler

Share and Cite

MDPI and ACS Style

Wang, L.; Ran, X.; Shi, L.; Xing, J.; Wang, X.; Hou, S.; Li, H. Simulation and Optimization of a Rotary Cotton Precision Dibbler Using DEM and MBD Coupling. Agriculture 2024, 14, 1411. https://doi.org/10.3390/agriculture14081411

AMA Style

Wang L, Ran X, Shi L, Xing J, Wang X, Hou S, Li H. Simulation and Optimization of a Rotary Cotton Precision Dibbler Using DEM and MBD Coupling. Agriculture. 2024; 14(8):1411. https://doi.org/10.3390/agriculture14081411

Chicago/Turabian Style

Wang, Long, Xuyang Ran, Lu Shi, Jianfei Xing, Xufeng Wang, Shulin Hou, and Hong Li. 2024. "Simulation and Optimization of a Rotary Cotton Precision Dibbler Using DEM and MBD Coupling" Agriculture 14, no. 8: 1411. https://doi.org/10.3390/agriculture14081411

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