Soil-Bin Performance of a Modified Bent Leg Plow

Jafari, R.; Raoufat, M. H.; Hashjin, T. Tavakoli

doi:10.13031/2013.24493

Cited by 12 publications

(2 citation statements)

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“…TR is one of the major parameters of tillage components. A higher TR requires larger tractors and increases fuel consumption [ 39 , 40 ]. The simulation results ranged from 133.91 to 179.71, with an average value of 156.87 ( Table A1 ).…”

Section: Resultsmentioning

confidence: 99%

Parameter Optimization and DEM Simulation of Bionic Sweep with Lower Abrasive Wear Characteristics

et al. 2023

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High wear rates during the tillage process often result in significant financial losses and wasted farming seasons. In this paper, a bionic design was used to reduce tillage wear. Inspired by wear-resistant animals with ribbed structures, the bionic ribbed sweep (BRS) was designed by combining a ribbed unit with a conventional sweep (CS). BRSs with different parameters (width φ, height h, angle θ, and interval λ) were simulated and optimized using the DEM and RSM methods at a working depth of 60 mm to evaluate the magnitude and trends of three responses: tillage resistance (TR), number of contacts between the sweep and soil particles (CNSP), and Archard wear value (AW). The results showed that a protective layer could be created on the surface of the sweep with a ribbed structure to reduce abrasive wear. Analysis of variance proved that factors φ, θ, and λ had significant effects on AW, CNSP, and TR, while factor h was insignificant. An optimal solution was obtained using the desirability method, including 8.88 mm φ, 1.05 mm h, 3.01 mm λ, and 34.46° θ. Wear tests and simulations showed that wear loss could be effectively reduced at different speeds by the optimized BRS. It was found to be feasible to create a protective layer to reduce partial wear by optimizing the parameters of the ribbed unit.

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Section: Resultsmentioning

confidence: 99%

Parameter Optimization and DEM Simulation of Bionic Sweep with Lower Abrasive Wear Characteristics

et al. 2023

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“…As a result of these studies, the Para-Plow tool was developed in the United Kingdom in recent years as an alternative to subsoiler and chisel tools and is also now receiving positive attention in Turkey. Previous studies support that the Para-Plow is a very efficient tillage tool in terms of time and energy saving in soil loosening (Krause et al 1984;Ehlers and Baeumer 1988;Harrison 1988;Peterson et al 1988, Pierce 1992, Parker et al 1989Sojka et al 1997;Dorado and Fando 2006;Jafari et al 2008;Friday 2008;Solhjou et al 2014;Askari and Abbaspour-Gilandeh 2019).…”

Section: Introductionmentioning

confidence: 93%

Strength-based design analysis of a Para-Plow tillage tool

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et al. 2020

Computers and Electronics in Agriculture

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In this research, experimental field tests and an advanced computer aided design and engineering (CAD and CAE) based application algorithm was developed and tested. The algorithm was put into practice through a case study on the strength-based structural design analysis of a Para-Plow tillage tool. Para-Plow is an effective tractor attached tillage tool utilised as an alternative to the conventional deep tillage tools used in agricultural tillage operations. During heavy tillage operations, the Para-Plow experiences highly dynamic soil reaction forces which may cause undesired deformations and functional failures on its structural elements. Here, prediction of the deformation behaviour of the tool structure during tillage operation in order to describe optimum structural design parameters for the tool elements and produce a functionally durable tool become an important issue. In the field experiments, draft force and strain-gauge based measurements on the tool were carried out simultaneously. Subsequently, Finite Element Method based stress analysis (FEA) were employed in order to simulate deformation behaviour of the tool under consideration of the maximum loading (worst-case scenario) conditions tested in the field. In the field experiments, average and maximum resultant draft forces were measured as 33,514 N and 51,716 N respectively. The FEA revealed that the maximum deformation value of the tool was 9.768 mm and the maximum stress values impart a change on the most critical structural elements of between 50 and 150 MPa under a worst-case loading scenario. Additionally, a validation study revealed that minimum and maximum relative differences for the equivalent stress values between experimental and simulation results were 5.17 % and 30.19 % respectively. This indicated that the results obtained from both the experimental and simulation are reasonably in union and there were no signs of plastic deformation on the Para-Plow elements (according to the material yield point) under pre-defined loading conditions and a structural optimisation on some of the structural elements may also be possible.This research provides a useful strategy for informing further research on complicated stress and deformation analyses of related agricultural equipment and machinery through experimental and advanced CAE techniques.

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