Research Article
Optimization of the Parameters of a Helical Rotary Harrow Based on the Method of Mathematical Planning of Experiments
Muhamedov Djobirxon,
Abduvaxobov Dilshod,
Ismatullayev Kaxramon,
Muxammadjonov Komiljon*,
To‘xtasinov Rustambek
Issue:
Volume 14, Issue 2, April 2026
Pages:
28-35
Received:
14 May 2026
Accepted:
25 May 2026
Published:
26 June 2026
DOI:
10.11648/j.ijmea.20261402.11
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Abstract: This article investigates the optimization of the constructive and technological parameters of a helical rotary harrow using the method of mathematical planning of multifactor experiments. The study aims to improve the quality of soil cultivation while reducing energy consumption and increasing the operational efficiency of the unit. In the research, the influence of the rotational speed of the helical toothed section, tooth diameter, tooth length, helix rise angle, and aggregate travel speed on the quality and energy performance indicators of the rotary harrow was analyzed. The experiments were carried out based on the Plan B5 experimental design method. The lifting height of the bottom soil layer, soil crumbling degree, power consumption of the rotary harrow, and specific draft resistance were selected as evaluation criteria. Experimental data were processed using the PLANEX software package. The homogeneity of variance was evaluated using Cochran’s criterion, the significance of regression coefficients was determined by Student’s criterion, and the adequacy of the developed models was verified using Fisher’s criterion. As a result of the study, regression equations describing the relationships between the input factors and evaluation criteria were obtained, and the optimal constructive and technological parameters of the helical rotary harrow were determined. The obtained results demonstrate that the proposed parameter optimization improves soil cultivation quality, decreases energy consumption, and enhances the operational efficiency of the machine unit.
Abstract: This article investigates the optimization of the constructive and technological parameters of a helical rotary harrow using the method of mathematical planning of multifactor experiments. The study aims to improve the quality of soil cultivation while reducing energy consumption and increasing the operational efficiency of the unit. In the researc...
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