Version 1
: Received: 4 July 2023 / Approved: 5 July 2023 / Online: 5 July 2023 (13:46:08 CEST)
How to cite:
Wang, L.; Zhang, Y.; Liu, X. Parameter Optimization of Ditching Furrow System for Ditching-Rotary Tiller Based on Differential Geometry. Preprints2023, 2023070339. https://doi.org/10.20944/preprints202307.0339.v1
Wang, L.; Zhang, Y.; Liu, X. Parameter Optimization of Ditching Furrow System for Ditching-Rotary Tiller Based on Differential Geometry. Preprints 2023, 2023070339. https://doi.org/10.20944/preprints202307.0339.v1
Wang, L.; Zhang, Y.; Liu, X. Parameter Optimization of Ditching Furrow System for Ditching-Rotary Tiller Based on Differential Geometry. Preprints2023, 2023070339. https://doi.org/10.20944/preprints202307.0339.v1
APA Style
Wang, L., Zhang, Y., & Liu, X. (2023). Parameter Optimization of Ditching Furrow System for Ditching-Rotary Tiller Based on Differential Geometry. Preprints. https://doi.org/10.20944/preprints202307.0339.v1
Chicago/Turabian Style
Wang, L., Yonglin Zhang and Xiaopeng Liu. 2023 "Parameter Optimization of Ditching Furrow System for Ditching-Rotary Tiller Based on Differential Geometry" Preprints. https://doi.org/10.20944/preprints202307.0339.v1
Abstract
Ditching-rotary tiller was widely used in tillage and ditching furrow during rapeseed sowing. As its ditching furrow system (consist of four identical ditching plows) would bear great drag resistance from the soil during operation, the ditching plow was optimized based on differential geometry analysis and EDEM simulation. Resistance-velocity simulation indicated the plow with parabolic type guide curve had better reduce-drag characteristics. Differential geometry analysis indicated decay rate of E and growth rate of G could represent the variable regularity of drag resistance with the increase of velocity. The L value could represent the magnitude of drag resistance. The smaller L value, decay rate of E and growth rate of G, the better drag-reduce characteristics. Quadratic rotation orthogonal combination design shown the optimal structural parameter values were: Δθ=15°, θmin=45°, h=250mm, l=100mm. The minimum average drag resistance was 230.1N. The differential geometry analysis of optimal ditching plow shown |dE/dκ| and |dG/dκ| could obtain minimum value, indicating growth rate of drag resistance for optimal plow was the lowest within the experimental level. Field experiment indicated the operation effect of optimized ditching furrow system could met the requirements of rapeseed sowing. The research provided in-depth theoretical guidance for Drag-reduce design of plow.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
