1985 Volume 47 Issue 3 Pages 293-300
In the previous papers, the studies were focused on draft force reduction on a vibrating subsoiler. The purpose of this paper is to describe the characteristics of power requirements on a vibrating subsoiler and to investigate the effects of the cutting directional angle β, amplitude a, frequency f and velocity ratio λ on soil cutting horsepower ratio Ps and total horsepower ratio Pt.
Soil cutting horsepower ratio Ps can be defined as a change of energy to brake the soil on vibratory tillage against non-vibratory tillage. Total horsepower ratio Pt shows a change of energy to operate the tested subsoiler on vibratory tillage against non-vibratory tillage.
Soil cutting horsepower ratio Ps and total horsepower ratio Pt were not affected seriously by the cutting directional angle β and increased as velocity ratio λ decreased. At the same velocity ratio λ, the greater the amplitude or the smaller the frequency, the smaller both Pt and Ps became.
