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Optimization of vibratory conveying upward by inclined track with polyharmonic normal vibrations

The paper is devoted to the research of vibratory conveying of piece goods along an inclined track, performing harmonic longitudinal and polyharmonic normal vibrations. It is considered the conditions of reaching maximum conveying velocity at specified values of frequency and amplitude of longitudinal vibrations – the conditions of maximum dimensionless conveying velocity, depending on several dimensionless parameters in the moving modes without hopping.

Optimal angles for lifting of unloading cargoes during irrigation vibration transport with polyharmonic normal oscillations

Vibratory conveying with harmonic longitudinal and polyharmonic normal oscillations of vibratory conveying device in non-jumping modes is considered. Optimal values of inclined track angles are determined on the condition of the piece goods lifting at a certain height in the minimum time. It is shown that optimal inclined track angle depends on the number of harmonics of polyharmonic normal oscillations and coefficient of friction.

The Influence of the Ratio Between Kinetic and Static Frictional Coefficients on the Conveying Velocity With Elliptical Oscillations

The influence of the ratio between kinetic and static frictional coefficients on the dimensionless velocity coefficient is considered for non-jumping vibratory conveying modes with elliptical oscillations. It is shown that with decreasing of this ratio the value of velocity coefficient decreases. This decreasing is less essential with the track inclination angle increasing and it almost disappears with the extreme inclination angles.