The analysis of pressure forces and strain in thickening of vegetal materials

Abstract

The article analyzes the means of thickening vegetal materials the effectiveness of which depend on the mechanical properties of gravity, pressure and mass. The surface of material being thickened is not steady; therefore the stability of mechanical means and vibrator is reduced. The article includes theoretical cvalunlion of the conditions, factors and indicators of grass mass slope stability and marginal balance affecting the design or selection of constructional elements of compartment and container-type forage storage. An experimental research was carried out pressing the vegetal materials by means of tractor, surface flat inertia type vibrators in which the excitation power is received by rotating the unbalanced mass, and directional and non-directional inertia type vibrators. It was established, that resonant frequency essentially depends only on mass toughness qualities, and changes from 7.0 to 15 Hz. The amplitude of excitation power of galcga and its mixes during resonance increases to 3 times, however in such case the efficiency of mass pressure reduces. The coefficients of pressure increase and the repression of pressure on plant mass layer in the bottom of the container were estimated. After evaluating the application of various tractors and vibratory grass mass thickeners for grass mass pressing, it was established that in both cases the received efficiency rates of grass mass layer are similar.