Development and evaluation of a draft force calculator for moldboard plow using the laws of classical mechanics

摘要: Abstract The moldboard plow is the most common primary tillage implement in world; therefore, it valuable to consider this from an engineering viewpoint. Since required draft force and power are among important specifications of a plow, paper, model was developed calculate them. In model, effect soil cutting, displacement, soil-metal friction on specific considered. Soil parameters, working condition parameters were considered as inputs. To simplify calculations, derived equations entered Excel software, finalized spreadsheet utilized calculator. verify comparison outputs with corresponding results other studies carried out. Furthermore, output measured plowing silty clay loam compared. According study, produced acceptable forces that within overall range draft. requirements three-bottom forward velocity 7 km h−1 17.9 kN, 34.8 kW, respectively, about 8% higher than obtained by (16.64 kN, 32.28 kW). Therefore, can be used reasonable accuracy.