Influence of tool angles and speed on the soil reactions of a bent leg plough in two soils

Durairaj, C.; Balasubramanian, M.

doi:10.1016/s0167-1987(97)00048-2

Cited by 10 publications

(5 citation statements)

References 6 publications

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“…It was found that subsoiler, paraplow and bentleg require more draft in all depths and Forward speed (km/h) speeds. This relationship was observed by other researchers (Page Harrison 1988;Durairaj, Balasubramanian 1997;Esehaghbeygi et al 2002, Raper 2005). These researchers reported that the paraplow is energy-efficient because soil failure occurs in tension.…”

Section: Effect Of Tine On the Draft Requirementsupporting

confidence: 82%

“…Subsoiling in compacted soils requires high draft and is an expensive operation. Therefore, conventional subsoiler associated with high-energy demand and the possibility of soil re-compaction, was replaced by other tools such as bentleg and paraplow (Durairaj, Balasubramanian 1997;Esehaghbeygi et al 2002;Celik, Raper 2012). Wings were attached to the sides of the subsoiler and paraplow with a view to improve their performance in increment of soil loosened area and decrement of specific resistance (Spoor, Godwin 1978;Ramadhan 2011Ramadhan , 2014.…”

mentioning

confidence: 99%

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The effect of tine, wing, operating depth and speed on the draft requirement of subsoil tillage tines

Askari¹,

Shahgholi²,

Abbaspour‐Gilandeh³

2017

Res. Agric. Eng.

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In this study, the effect of tine type, adding wing, operating depth and forward speed on the draft requirement of subsoil tillage tines was investigated in clay loam soil. Three subsoil tillage tines (subsoiler, bentleg and paraplow), four levels of forward speed (1.8, 2.3, 2.9 and 3.5 km/h), three levels of depth (30, 40 and 50 cm) and winged and no-wing tines were examined with the exception of bentleg as it would not be winged. It was revealed that draft of the tines is less affected by forward speed but is much affected by tine type, depth and wing. It was observed that an increase of speed and depth plus adding wing results in an increase of draft in all tines. Additionally, it was found that in all depths and speeds, subsoiler required more draft than paraplow and paraplow required more draft than bentleg. Multiple regression models including the studied parameters were developed to predict the draft requirements for each tine with high accuracy.

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Section: Effect Of Tine On the Draft Requirementsupporting

confidence: 82%

mentioning

confidence: 99%

The effect of tine, wing, operating depth and speed on the draft requirement of subsoil tillage tines

Askari¹,

Shahgholi²,

Abbaspour‐Gilandeh³

2017

Res. Agric. Eng.

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“…In light soils draught increases with depth, bulk density and speed, whereas it decreases with moisture content (Mouazen and Ramon, 2002). Durairaj and Balasubramanian (1997) reported that though the main effect of the rake angle was predominant, complex interactions existed between the operational parameters during tillage. Therefore, the best scenario would be to target an acceptable soil loosening for an acceptable amount of draught and energy requirement.…”

Section: Effects Of Speed and Sweep Rake Angle On Draught And Soil Lomentioning

confidence: 99%

Modelling soil–sweep interaction with discrete element method

Kismányoky

Jóri

Mouazen

2013

Soil and Tillage Research

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Several analytical methods of the soil-tool interaction have been developed and tested, but they are time consuming and require large effort, which has prevented their widespread use. This paper presents the development of a three dimensional (3-D) discrete element method (DEM) model for the simulation of soil-sweep interaction. The aim was to understand the effects of the sweep rake angle (β) and speed on draught and soil loosening. It implements computer aided design (CAD) systems to simulate the sweep geometry. The DEM model output was validated by comparing simulated and corresponding actual soil bin measurements using a cohesive wet sandy soil. Cohesion of the wet sandy soil was assigned using a parallel bond contact model, where the normal and shear stiffness of the bond, the normal and shear strength, and the size of the connecting geometry were the main parameters. Following the comparison between the simulated and measured draught based on input parameters measured with a direct shear box test, virtual DEM triaxial compression analyses were performed to refine the DEM model parameters including cohesion, internal friction angle, modulus of elasticity and Poisson's ratio, using the Mohr-Coulomb failure criterion.

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“…In this research, the effective wing geometry was determined. The levels of the rake and bend angles of the tine were chosen based on the optimum angles of previous studies (Durairaj and Balasubramanian 1997;Majidi Iraj and Raoufat 1997;Esehaghbeygi et al 2005;Jafari et al 2008;Salar et al 2013). The independent variables were related to the wing as three depths (5, 10, and 15 cm from the soil surface), three bend angles (10, 20, and 30 °), and three rake angles (7.5, 15, and 22.5 °) which were tested in a soil bin.…”

Section: Development Of a New Winged Chisel Ploughmentioning

confidence: 99%

“…Previous studies have indicated that a bent leg plough is more energy efficient than a subsoiler and paraplough for both semi-deep and deep tillage operations. A great deal of research has been conducted on the bent leg plough and the effect of different operation parameters, like the soil properties, tillage depth and speed on the interaction between the soil and bent leg (Durairaj and Balasubramanian 1997;Jafari et al 2008Jafari et al , 2011Salar et al 2013;Askari et al 2016).…”

mentioning

confidence: 99%

Forces and loosening characteristics of a new winged chisel plough

Salar¹,

Karparvarfard²,

Askari³

et al. 2021

Res. Agric. Eng.

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This study was devoted to verifying the performance of various configurations of a winged chisel plough (WCP) in a soil bin. The performance of the new tool was assessed at three wing depths (5, 10 and 15 cm), three bend angles (10, 20 and 30 °), and three rake angles (7.5, 15 and 22.5 °) with three replications using a completely randomised design at a constant depth and speed of 30 cm and 1 m·s–1, respectively. The draught and vertical forces, soil disturbed and upheaved areas plus the efficiency of the soil loosening were measured during the tests. The results revealed that the draught and vertical forces were significantly increased by increasing the wing depth, bend and rake angles. The soil disturbance area increased with an increase in the wing depth, bend and rake angles. While the soil upheaving was decreased by increasing the wing depth and bend angle, the effect of the rake angle on the soil upheaving area was not significant. The maximum efficiency of the soil loosening of 268.1 cm2·kN–1 was achieved for a wing depth of 10 cm, a bend angle of 20 °, and a rake angle of 15 °. A significant improvement in the efficiency of the soil loosening along with maintaining a considerable portion of the residue on the soil surface suggest that the WCP should be adopted for conservation tillage.

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Influence of tool angles and speed on the soil reactions of a bent leg plough in two soils

Cited by 10 publications

References 6 publications

The effect of tine, wing, operating depth and speed on the draft requirement of subsoil tillage tines

The effect of tine, wing, operating depth and speed on the draft requirement of subsoil tillage tines

Modelling soil–sweep interaction with discrete element method

Forces and loosening characteristics of a new winged chisel plough

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