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Performance Evaluation of a Cicada-Inspired Subsoiling Tool Using DEM Simulations.

Xuezhen Wang1,2, Ruizhi Du1, Lingxin Geng1

  • 1College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471000, China.

Biomimetics (Basel, Switzerland)
|January 22, 2024
PubMed
Summary

A novel cicada-inspired subsoiling tool (CIST) significantly reduces tillage forces and energy consumption in sandy loam soils. This biomimetic design offers improved soil disturbance and efficiency compared to conventional tools.

Keywords:
biomimetic methoddraught forceenergy consumptionsoil disturbancesubsoiling

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Area of Science:

  • Agricultural Engineering
  • Biomimetics
  • Soil Mechanics

Background:

  • Subsoiling is crucial in modern agriculture but demands high tillage forces and energy, impacting economic viability.
  • Reducing draught force and energy consumption in subsoiling is essential for improving agricultural efficiency and sustainability.

Purpose of the Study:

  • To design and evaluate a cicada-inspired biomimetic subsoiling tool (CIST) for reducing draught force during subsoiling.
  • To compare the performance of the CIST with a conventional chisel subsoiling tool (CCST) in sandy loam soil.

Main Methods:

  • Developed a soil-tool interaction model using EDEM (Extended Discrete Element Method) for simulating subsoiling.
  • Validated the EDEM model with laboratory soil bin tests under controlled conditions.
  • Optimized the CIST design and evaluated its performance against CCST across various depths and speeds.

Main Results:

  • The CIST demonstrated a reduction in draught forces by 17.7% compared to the CCST across tested depths and speeds.
  • Simulated results showed good agreement with experimental data, with relative errors below 6.1%.
  • The CIST achieved smoother soil surface flatness and increased soil loosening efficiencies by 17.37%.

Conclusions:

  • The cicada-inspired subsoiling tool significantly outperforms conventional tools in reducing draught force and enhancing soil loosening efficiency.
  • The CIST design offers a promising approach for developing high-performance subsoiling tools with lower energy requirements.
  • This research has practical implications for optimizing subsoiling operations, particularly in sandy loam soils.