Desain Model Matematis Berbasis Analisis Dimensi Tentang Daya Enginetraktor Pada Pengolahan Tanah Dengan Bajak Singkal (Moldboard Plow) Dl Padang, Sumatera Barat

Abstract

This research has been conducted in Padang City from April to September 2012. Purpose of this study is to obtain a mathematical model of engine power tractors for tillage tractors working at various speeds. This study was obtained from a mathematical model involving variable engine power of tractors on soil tillage (P, watts), soil bulk density (p, kg!m3 ), tillage depth (d, m), soil tillage speed (V, m Is), and the acceleration of gravity (g, m/s2 ) in district Pauh is : P. if I [p v' 1 = 0,5129 { If I [ g.d1 F2 • 8925 with I= 1, and mathematical models based on the tractor enginr:;ower in district Kuranji is : P. if I [p v' 1 = 0,6656 { If I [ g.d1 F "97 with I is 0,999.