Dynamics of Cylindrical Parts for Vibratory Conveying

Abstract

Vibratory conveyors are widely used to feed raw materials and small parts to processing equipment. Up to now, most of the research has focused on materials and parts that can be modeled as point masses or small blocks. This paper focuses on the conveying of cylindrical parts. In this case, the rolling motion is an essential feature of conveyor dynamics. First, the dynamic equations governing the rolling motion are stated, and the effects of friction and rolling resistance coefficients on the behavior of the system are analyzed. Then, a non-linear numerical model is developed in MATLAB. It takes into account the transition between pure rolling and rolling with sliding and the impacts of the cylindrical part on the edges of the conveyor. Numerical results showing the effect of the operative parameters of the conveyor and of friction properties on the traveled distance are presented and discussed. Finally, a comparison between numerical and experimental results is presented.

Vibration-Based Locomotion of an Amphibious Robot

“…The area of the positive part of the plot is higher than the area of the negative part of the plot for both feet. This phenomenon is similar to the one exploited in vibration conveying [48], in which the inclination of the inertia force caused by vibrations increases the static friction force in a direction and decreases the static friction force in the opposite direction. The dynamic behavior of the robot using a constant motor torque as an input has also been investigated.…”

Advances in Mechanical Systems Dynamics 2020

“…Paper [7] addresses the problem of vibratory conveying of cylindrical parts, a nonlinear numerical model is developed that takes into account the transition between pure rolling and rolling with sliding and the impacts of the cylindrical parts with the edge of the conveyor.…”

“…The first of these deals with the dynamics of cylindrical parts in a vibratory conveyor [7]. A non-linear numerical model is developed, taking into account pure rolling, rolling with sliding, and the impacts on the edges.…”

Nonlinear Vibrations Analysis and Dynamic Responses of a Vertical Conveyor System Controlled by a Proportional Derivative Controller

“…The new vibratory conveyor transport possibilities, changes of direction transporting and velocity are analyzed with the angular velocity changes of the excitation vibrator [24]. The dynamics behavior, the influence of operative parameters, and the frictional properties of the cylindrical parts of the vibratory conveying are discussed [25]. The proportional derivative controller was applied to transfer the energy, and reduce large oscillations in the wind turbine system.…”