Simulation and Optimization Experiment: Working Process of a Cleaning Device for Flax Combine Harvester

Fei Dai, Pengqing Xu, Zixiang Yuan, Ruijie Shi, Yiming Zhao, Xuefeng Song and Wuyun Zhao ()
Additional contact information
Fei Dai: College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China
Pengqing Xu: College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China
Zixiang Yuan: College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China
Ruijie Shi: College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China
Yiming Zhao: College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China
Xuefeng Song: College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China
Wuyun Zhao: College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou 730070, China

Agriculture, 2023, vol. 13, issue 11, 1-18

Abstract: The aim of this study was to investigate the effects of different working parameters on the cleaning efficiency of a cleaning device during the separation and cleaning process in a flax joint harvesting machine. To achieve this objective, CFD–DEM joint simulation technology was used to construct a CFD model of the cleaning device and a DEM model of the discharged flax material; the simulation results show the flax cleaning process. The Box–Behnken experimental design method was used to establish a mathematical model between the vibrating sieve frequency, vibrating sieve amplitude, fan wind speed, seed impurity rate, and cleaning loss rate to find the optimum combination of cleaning equipment parameters and to conduct a field verification test. The simulation test results show that, when the vibrating sieve frequency is 6 Hz, the vibrating sieve amplitude is 14.42 mm, the fan wind speed is 5.96 m/s, and the machine cleaning effect is the best; the simulation test was measured following a seed impurity rate of 2.97% and cleaning loss rate of 2.17%. The field test verification results show that, after optimizing the working parameters of the cleaning device, the cleaning loss rate is 3.58% and the impurity rate of the grain combine harvester is 3.16%, thus meeting the national and industry requirements. The test results and simulation results are highly consistent with the model, thereby verifying the reliability of the model. The results of the study provide a reference for the design and performance optimization of the flax combine cleaner.

Keywords: agricultural machinery; CFD–DEM coupling; numerical simulation; parameter optimization (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2077-0472/13/11/2123/pdf (application/pdf)
https://www.mdpi.com/2077-0472/13/11/2123/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:13:y:2023:i:11:p:2123-:d:1277895

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().