Effect of tine rake angle and aspect ratio on soil failure patterns in dry loam soil

Makanga, J T; Salokhe, V. M.; Gee-Clough, D.

doi:10.1016/s0022-4898(97)00007-4

Cited by 27 publications

(12 citation statements)

References 15 publications

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“…Rake angle is one of the most important factors for draught requirement (Payne and Tanner, 1959;Dransfield et al, 1964;Makanga et al, 1996;Onwualu and Watts, 1998;Aluko and Seig, 2000;Godwin, 2007). In our experiment, an increase in rake angle gave an increase in specific draught and total draught only on the loam, where the measured increase in specific draught was much lower than the calculated value.…”

Section: Working Depth Specific and Total Draughtcontrasting

confidence: 51%

Specific draught, soil fragmentation and straw incorporation for different tine and share types

Arvidsson

Hillerström

2010

Soil and Tillage Research

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Section: Working Depth Specific and Total Draughtcontrasting

confidence: 51%

Specific draught, soil fragmentation and straw incorporation for different tine and share types

Arvidsson

Hillerström

2010

Soil and Tillage Research

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“…Since the tools performance depend on different soil environments [22][23][24][25], three types of soils as shown in Figure 3a were selected, which were marked as soil 1, soil 2, and soil 3, respectively. The composition of the soils which were collected from Jilin University, China, was listed in Table 1.…”

Section: Design and Preparation Of Penetration Testsmentioning

confidence: 99%

Effects of Bionic Curves on Penetration Force under Difference Soils

Wang

Zhuang

et al. 2020

Applied Sciences

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Soil penetration is the most important process during soil tilling. To optimize the soil penetration process, six specimens were designed and fabricated based on the badger teeth outlines. Both experimental investigation and numerical analysis were conducted with three types of soil. Results showed the specimen C, B, and D got the lowest penetration force and reduced the force by 26.15%, 22.68%, and 25.86% compared with that of specimen A under soil 1, soil 2, and soil 3, respectively. Depth-force curve analysis showed that the bionic specimens can slow down the force increase rate by reducing the coefficient of the force-depth curve equations. The bionic specimens obtained a lower increase of internal friction angle and cohesion after penetration, indicating the soil strength after penetration was lower. Furthermore, the rise in soil surface was observed after the penetration, and the penetration with the bionic specimens got a higher rise. Simulation analysis showed that the mechanism for the force reduction was because the force direction was changed, which brought a better flowability and less strength for the soil. It concludes that the badger teeth outlines reduce the penetration force by changing the force directions and optimizing the soil properties. Based on research results, the optimal bionic curve for penetration in different types of soil was determined.

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“…The influences of _ z and € z can be ignored for low-speed cases. 17 Experimental study and analyses…”

Section: Soil Deformation Ratementioning

confidence: 99%

The sinkage characteristics and the supporting capacity of a submerged floating vehicle driving in deep soft terrains

Huang

Gao

Xie

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part D:

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A submerged floating vehicle, which is utilized in deep soft terrains, has a superior trafficability to those of traditional vehicles. This study focuses on understanding and improving the sinkage characteristics of a submerged floating vehicle travelling on deep soft clay. The factors which influence the sinkage characteristics were analysed, and a soil bin experimental model was established using the similarity theory. A series of experiments was designed for carrying out tests on the sinkage with respect to the pressure, the sliding speed, the aspect ratio and the moisture content of the soil. The experimental results show that the sinkage of the floating device sliding increased with increasing moisture content of the soil. They also show that the sinkage increases with increasing pressure and decreases with increasing aspect ratio of the floating device. By analysing the problems and the challenges which exist in an empirical formula or a semiempirical formula when facing the sinkage of a floating device, a support vector machine for a regression model is proposed in order to construct a multiple non-linear regressive prediction model using experimental data. Further evidence was provided to substantiate the merits of the application of the support vector regression method when dealing with the issue of predicting the sinkage.

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Effect of tine rake angle and aspect ratio on soil failure patterns in dry loam soil

Cited by 27 publications

References 15 publications

Specific draught, soil fragmentation and straw incorporation for different tine and share types

Specific draught, soil fragmentation and straw incorporation for different tine and share types

Effects of Bionic Curves on Penetration Force under Difference Soils

The sinkage characteristics and the supporting capacity of a submerged floating vehicle driving in deep soft terrains

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