The reduction of energy consumption and soil disturbance mechanisms in trenching using biomimetic blades

Computers and Electronics in Agriculture, Journal Year: 2025, Volume and Issue: 230, P. 109887 - 109887

Published: Jan. 2, 2025

Language: Английский

Analysis of the interaction mechanism between straw soil rotary tillage blade during rotary tillage process

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 3, 2025

In response to the rotary ploughing equipment in stubble land implement protective operations, is large number and strong toughness, not easy crush, resulting produce entanglement increased resistance other issues. this study, researchers designed a bionic tillage blade (B-RTB) based on structural equations of Marmota claw. A straw-soil complex shear performance test was conducted investigate effect straw soil strength. Based EDEM software, we constructed soil-rotary cutter-straw interaction model, carried out straw-soil-rotary cutter mechanism analysis. Conducted three-factor, three-level quadratic regression orthogonal with bending angle, tine spacing, roller rotational speed as factors, torque contact bond breaks indexes determine optimal parameter combinations breaks. Soil bin tests were verify anti-entanglement drag reduction (B-RTB). The composite showed that: under same positive pressure, when content from 0 0.5%, strength straw-containing proportional vertical pressure. results that conditions operation spreading, angle 122°, spacing 14.5 mm, roll 255 r·min− 1 better combinations, at which time minimum 15.327 N·m achieved, maximum 2443. test, compared conventional (C-RTB), reduced by 6.50%. When no laid, 9.45% breakage rate 6.67% effectively realized requirements obstruction technology. study can provide reference for visualization touchdown components analysis mechanisms mixed material operating systems.

Language: Английский

DEM Study and Field Experiments on Coupling Bionic Subsoilers

Biomimetics, Journal Year: 2025, Volume and Issue: 10(5), P. 306 - 306

Published: May 11, 2025

Subsoiling is an effective tillage method for breaking up the plough pan and reducing soil bulk density. However, subsoilers often encounter challenges such as high draft resistance excessive energy consumption during operation. In this study, claw toes of badger scales pangolin were selected bionic prototypes, based on which coupling designed. The discrete element (DEM) was used to simulate analyze interactions between both standard subsoiler subsoilers. Field experiments conducted validate simulation results. results showed that reduced force by 7.70-16.02% compared at different working speeds. Additionally, disturbance coefficient decreased 5.91-13.57%, bulkiness 2.84-18.41%. field experiment average 11.06% area. validated accuracy DEM This study provides valuable insights designing more efficient

Language: Английский