Soil translocation by narrow openers with various bent leg geometries

Solhjou, Aliakbar; Fielke, John M.; Desbiolles, J.; Saunders, Chris

doi:10.1016/j.biosystemseng.2014.08.008

Cited by 25 publications

(9 citation statements)

References 15 publications

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“…However, the arrangement of these mechanisms may present differences in performance under similar work conditions, altering the intensity and direction of some performance variables due to changes in the distance between mechanisms. Performance differences could also be amplified by operational adjustments, such as forward speed (Francetto et al, 2016;Hasimu & Chen, 2014;Solhjou et al, 2014). This work demonstrated that it is possible to identify and measure the operational behavior of furrow openers following such adjustments, obtaining beneficial and reliable results for users and manufacturers.…”

Section: Introductionmentioning

confidence: 90%

“…Therefore, although this factor did not significantly impact soil elevation, speed selection may affect the final quality of the furrow as a function of the soil projection away from this region (Figure 8). According to Solhjou et al (2014), this is a limiting factor that rules the current seeding speeds, with the spacing of the mechanisms possibly reducing this adverse effect.…”

Section: Figure 7 Soil Elevation As a Function Of The Configurations Of Mechanismsmentioning

confidence: 99%

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Effect of the Distance Between the Cutting Disc and Furrow Openers Employed in Row Crop Planting on Soil Mobilization

et al. 2021

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Section: Introductionmentioning

confidence: 90%

Section: Figure 7 Soil Elevation As a Function Of The Configurations Of Mechanismsmentioning

confidence: 99%

Effect of the Distance Between the Cutting Disc and Furrow Openers Employed in Row Crop Planting on Soil Mobilization

et al. 2021

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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

Çelik

Çağlayan

Topakçı

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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“…However, tillage operations at high speed (more than 8 km•h -1 ) often results in a significant higher demand of the draught force (Godwin and O'Dogherty 2007). Solhjou et al (2014) quantified the soil disturbance and soil translocation of a bent leg opener design in a soil bin. As shown in Figure 1, the bent leg opener includes a footed bent leg opener (bent leg opener with a foot component) and a footless bent leg opener (bent leg opener without a foot component).…”

mentioning

confidence: 99%

“…As shown in Figure 1, the bent leg opener includes a footed bent leg opener (bent leg opener with a foot component) and a footless bent leg opener (bent leg opener without a foot component). The design was based on the RT blade (Figure 1A) developed by a South African farmer (Solhjou et al 2014;Barr et al 2020), who scaled down the concept of bent leg subsoilers aiming to reduce the draught force and surface soil disturbance (Raoufat and Mashadi Mighani 1999;Esehaghbeygi et al 2005). Solhjou et al (2014) found that the bent leg opener without a foot and shank offset of 45 mm had the potential to increase the furrow cross-sectional area with less soil translocation and soil mixing (Figure 1B).…”

mentioning

confidence: 99%

Field evaluation of a bent leg tillage implement in dry soil conditions

Solhjou¹,

Alavimanesh²

2023

Res. Agric. Eng.

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Tillage operations in dry soil conditions have increasingly been used in Iran in recent years. However, due to the recent droughts, the choice of suitable implements to reduce the clod and draught force is still under investigation. This study was aimed at determining the effect of the geometry of a bent leg tillage implement on the soil pulverisation and draught force in dry soil conditions. The treatments included three bent leg tillage depths (10, 15, and 20 cm) and three forward speeds (6, 9, and 12 km•h -1 ). The effect of the bent leg tillage implement on the clod mean weight diameter (MWD) and draught force was studied using a split plot experiment with three replications. The results showed that the tillage depth and forward speed affected the MWD and the draught force. Increasing the tillage depth from 10 to 20 cm increased the MWD and draught force by 24.9 and 35.1%, respectively. Increasing the forward speed from 6 to 12 km•h -1 decreased the MWD by 7.4% and increased the draught force by 40.0%. These findings show that the bent leg tillage technology has the potential to reduce the MWD and draught force at higher forward speeds. Therefore, a bent leg tillage implement can be suggested as a proper implement for tilling in dry land conditions.

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Soil translocation by narrow openers with various bent leg geometries

Cited by 25 publications

References 15 publications

Effect of the Distance Between the Cutting Disc and Furrow Openers Employed in Row Crop Planting on Soil Mobilization

Effect of the Distance Between the Cutting Disc and Furrow Openers Employed in Row Crop Planting on Soil Mobilization

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

Field evaluation of a bent leg tillage implement in dry soil conditions

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