MODELING THE DETAIL INTERACTION PROCESS AND PELLET AT SHOCK BUCKET LOAD

Abstract

The results of studies of high-frequency chaotic vibrational displacements of elements of the working medium (abrasive granules) are considered in the article. It is established that in the working environment there is a chaotic movement of individual elements (abrasive granules) which is caused by shock loads on the granule from the neighboring granules. The chaotic motion is manifested in the form of deviations of the trajectory of movement of a single pellet from the average trajectory of circulating motion. The deviation of the trajectory is close to the harmonic (sinusoidal) law. The machining of the workpiece is mainly carried out with the relative movement of the workpiece relative to the abrasive granules upon impact of the vibrating hopper. The speed of movement of the part relative to the pellets depends on the random position of the part relative to the direction of the velocity vector of the part at impact. The correlation function and the spectral density of random values of the speed of mutual movement of parts and granules corresponds to the sum of processes with a limited spectrum and constant values of the spectral density. The intensity of impulse loads per workpiece varies over the area of the vibrating hopper. The site of high intensity of loads is concentrated in the places of interaction of the vibrating hopper with emphasis. With the inclusion of three electromagnets there are three sections of high intensity with the maximum possible shock loads. Therefore, the simultaneous inclusion of three magnets provides the highest processing performance.