Self-Excited-Resonance of Soil-Engaging Surface Spectrum: A New Method of Soil Cutting Resistance Reduction

Zhijun Guo, Yiqing Qiu (), Xianghai Yan, Jiajia Wang, Yin Zhang, Pangang Zhang and Fu Zhang
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Zhijun Guo: College of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, China
Yiqing Qiu: College of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, China
Xianghai Yan: College of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, China
Jiajia Wang: College of Agricultural Engineering, Henan University of Science and Technology, Luoyang 471003, China
Yin Zhang: College of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, China
Pangang Zhang: College of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang 471003, China
Fu Zhang: College of Agricultural Engineering, Henan University of Science and Technology, Luoyang 471003, China

Agriculture, 2023, vol. 13, issue 6, 1-19

Abstract: In this study we explored the methods and effects of spectral resistance reduction for soil-engaging surface of self-excited resonant bulldozing plates with a plane base on the basis of resonance effects. In the acquisition of the low-order vibration frequency f 0 of the bin soil, centering around frequency point f 0 , eight spatial geometric wave frequency points n i of soil-engaging surfaces and three amplitudes were selected; by superimposing with soil-engaging surfaces of plane-based bulldozing plates, 24 spectral structures of the soil-engaging surface of bulldozing plates and model samples were combinatorically designed. Resistance reduction characteristics of each model sample were tested using an indoor soil bin test. Near the resonance point f 0 , the structures of the self-excited vibrating frequency spectrum of the soil-engaging surface obtain a preferable inhibitory effect on working resistance. At a 4 mm amplitude resonance point, model samples achieved the best resistance reduction effect, with a maximum relative resistance reduction rate of 22.67%, and the soil desorption effect of the relevant model sample was also good. On the other hand, away from the resonance point, whether the frequency increased or decreased, the corresponding working resistance of the model sample surfaces increased relatively. This is in good agreement with the law that the resonance point amplitude of the theoretical resonance curve is higher and the amplitude on both sides is lower. This paper provides a reference for the parameter design and related product development for various forced or self-excited vibration soil cutting tools.

Keywords: bulldozing plate; soil-engaging surface spectrum; resistance reduction design; self-excited vibration; resonance effect (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
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