Studies on the Vibration of agricultural Engine (V)

On the Absorption Method of Engine Vibration on the Field Soil

Abstract

Upon the vibration isolating method of the field work which support on the soil surface with one cylinder horizontal type engine and drive the working machines, the theoretical study is method of forced vibration with the reversive force on spring vibration system which support the engine with vibration isolating frame and rubber. The external force is the resultant force of compression and torsion which subtract friction force from the mean shaking force of engine. And it was added the natural frequency of rubber to this, calculated the total amplitude according to Martienssen's theory and, still more, it was added the free vibration part.
At this result of calculation, the amplitude is become smaller according as larger the engine revolution. The experiment was added the method of rubber and pile to this method. On the consideration from states of working load and soil condition etc., the most effective absorption method is the system which insert the rubber absorber between the pile or frame than used the pile much only.