SIMPLE MODEL SIMULATES SOIL CUTTING OF VIBRATION PLOW

A SIMPLE LUMPED PARAMETER MODEL SIMULATING SOIL CUTTING BY A HORIZONTALLY VIBRATING PLOW BLADE GIVES RESULTS WHICH CORRELATE WELL WITH THOSE MEASURED EXPERIMENTALLY. REDUCTION IN CUTTING FORCE IS SHOWN TO INCREASE AS THE VIBRATION FREQUENCY AND AMPLITUDE AND/OR SYSTEM STIFFNESS INCREASE. MATHEMATICAL MODEL OF A SPRING WITH COULOMB FRICTION NEGLECTS VELOCITY AND DYNAMIC EFFECTS. A VIBRATING PLOW IN A SOIL BIN GIVES CORROBORATION. /AUTHOR/