dc.contributor.author | Hiuhu, Angela | |
dc.contributor.author | Gitau, Ayub Njoroge | |
dc.contributor.author | Mbuge, Duncan Onyango | |
dc.contributor.author | Mulwa, John Ndisya | |
dc.date.accessioned | 2016-05-27T09:17:21Z | |
dc.date.available | 2016-05-27T09:17:21Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Open Journal of Optimization , 2 015, 4, 131 -140 | en_US |
dc.identifier.uri | http://www.scirp.org/journal/PaperInformation.aspx?paperID=61861 | |
dc.identifier.uri | http://hdl.handle.net/11295/95973 | |
dc.description.abstract | This paper investigated the effect of three independent variables including: tillage speed (ranges of below 2.5 m/s and between 2.5 m/s and 5 m/s), tillage depth (range of 10 cm from 0 cm to 30 cm) and frog angle (30° 40°, and 50°) on draught forces. The experimental work was completed with determination of the draught forces using an analytical method (Saunders Equation). Numerical Simulation: Discrete Element Method (DEM) was used to verify the results obtained analytically. The results indicated that tillage depth has a stronger influence on the draught forces as compared to the tillage speed. Minimal draught forces can then be achieved through operating at shallow tillage depth and maintaining a frog angle of 30°. The results showed a variance of ±15.95% to the calculated values supporting DEM as a numerical method capable of predicting draft forces correctly, tillage power optimization and determination of optimal frog angle for the mouldboard plough. | en_US |
dc.language.iso | en | en_US |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 United States | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/us/ | * |
dc.subject | DEM | en_US |
dc.subject | EDEM | en_US |
dc.subject | Soil-Cut Interactions | en_US |
dc.subject | Modelling | en_US |
dc.subject | Tillage | en_US |
dc.subject | Draught | en_US |
dc.title | Optimization of the Angle of Frog in Mouldboard Tillage Operations in Sandy Clay Soil | en_US |
dc.type | Article | en_US |