Draft Relationships for Primary Tillage in Oklahoma Soils

Summers, J. D.; Khalilian, Ahmad; Batchelder, D. G.

doi:10.13031/2013.30097

Cited by 36 publications

(8 citation statements)

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“…Furthermore, Michel et al, (1985) reported that proper selection of an efficient tool, such as chisel ploughshare rather than mouldboard plough, can cut down the tillage energy requirements up to 40%. Studies on influence of tractor speed and tillage depth were conducted by many researchers (ASAE., 1993; Khushwaha and Linke., 1996; Summers et al, 1986). Furthermore, Al-Jonabi and Al-Suhaibani (1998) developed the general equation for primary tillage tools (Mouldboard plough, three chisel ploughs of different shanks, disc plough and an offset disc harrow).…”

Section: Introductionmentioning

confidence: 99%

Influence of Tillage Depth and Plough Speed on Performance of Primary Tillage Tools

Singh

Chatha

Sidhu

2018

AJEAT

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In India near about 60% population is engaged in agriculture. Soil loosening is a primary method of cultivation before seeding. There are number of tillage tools used for primary cultivation i.e. cultivators, rotary tillers, moldboard plough and chisel plough, rotavators etc. During soil cultivation wear occurs due to interaction of tillage implement and soil particles, which in turn decreases tillage quality and increase draft forces and fuel consumption of tractor. Tool wear reduces farmer’s efficiency, costing millions of dollars per year to Nation’s economy. Knowledge of tillage depth and ploughing speed save the tillage time and improves tractor efficiency. In this study it is attempted to relate the influence of tillage depth and tractor speed on primary tillage tools.

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Section: Introductionmentioning

confidence: 99%

Influence of Tillage Depth and Plough Speed on Performance of Primary Tillage Tools

Singh

Chatha

Sidhu

2018

AJEAT

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“…This difference can be attributed to the different field conditions and the type of tillage tool used in the studies. Owen (1989) found that draught force increase is a quadratic function of velocity; however, Summers et al (1986) reported a linear relationship between them. Figure 9.…”

Section: Resultsmentioning

confidence: 99%

Dar kanat geometrisinin ayrık eleman metodu kullanılarak toprak arızası ve çekme kuvveti üzerindeki etkilerinin modellenmesi

Shahgholi

Kanyawi

Kalantari³

2019

Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi

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In most earth moving machinery, such as bulldozers or tillage tools, the working tool is a tine. Thus, for tillage systems, accurate predicting of the forces acting on the tine is of prime importance to enhance their productivity. The initial conditions (i.e., blade geometry or soil type) and operating conditions (i.e., cutting speed and cutting depth) have been shown experimentally a great effect on machinery efficiency. Although experimental studies provide valuable information, they are expensive, time-consuming, and limited to certain cutting speeds and depths. Results obtained from experimental studies are also highly dependent on the accuracy of the measuring devices. However, with the increasing computational power and the development of more sophisticated mathematical models, numerical methods and in particular discrete element method (DEM) have shown great potential in analyzing the factors affecting soil-blade interaction. In this study, the effects of different rake angles, forward speed, working depth, and depth/width (d/w) ratio were investigated on a tine draught and vertical force using DEM modeling. Simulation results were also compared with the test results. It was found from the results that increasing travel velocity, tine rake angle, d/w ratio, and working depth increased draught and vertical force. Overall, based on the results of this study, DEM is able to predict soil reaction forces with an accuracy of more than 90%.

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“…(1976, 40) haben, wie auch in der neueren Publikation von Summers u. Mitarb. (1987,38) es als essentiell angesehen, das Radiusköpfchen zusätzlich zu resezieren. Es besteht kein Zweifel, daß das destruierte Radiusköpfchen die Umwendbeweglichkeit stört und bei Instabilität (Subluxation des Radiusköpfchens, Anspannen des Bizeps gegen Widerstand in 90 o -EB-Flexion) wird die Flexion beeinträchtigt.…”

Section: J)iskllssiollunclassified

Die Ellenbogengelenkssynovektomie bei chronischer Polyarthritis

Hagena¹

1994

Akt Rheumatol

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Draft Relationships for Primary Tillage in Oklahoma Soils

Cited by 36 publications

References 0 publications

Influence of Tillage Depth and Plough Speed on Performance of Primary Tillage Tools

Influence of Tillage Depth and Plough Speed on Performance of Primary Tillage Tools

Dar kanat geometrisinin ayrık eleman metodu kullanılarak toprak arızası ve çekme kuvveti üzerindeki etkilerinin modellenmesi

Die Ellenbogengelenkssynovektomie bei chronischer Polyarthritis

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