Conditions for self-synchronization of inertial vibrators of vibratory conveyors in general motion

Abstract

The paper concerns the analysis of a self-synchronization process of inertial vibrators in general motion. These types of systems are found e.g. in the case of vibratory conveyors, in which the synchronization plane of vibrators is perpendicular to the plane of vibration of the conveyor trough. The analysis is focused on two basic issues related to movement of the vibrator. The first issue concerns conditions for obtaining stable motion in a configuration ensuring generation of useful vibrations. The second one is determination of the value of the synchronizing moment. In order to obtain analytical dependencies as simply as possible, we considered a typical build conveyor and the suspension, whose mathematical description we can bring to a diagonal form.In the paper, we paid attention to the consequences of using suspensions with highly directional properties, e.g. metal-elastomer vibration isolators.

A Spatial Model of a Vibrating Conveyor Taking Into Consideration The Self-Synchronisation Process of Inertial Vibrators. Analysis of The Effect of The Layout of The vibrators On The Operation of The Conveyor

“…Based on parameters corresponding to the laboratory bench (Table 1), where the centre of mass was situated 0.132 m above the resultant action line, this moment increased to 1.2 Nm. In general, it can be said that an increase in the asymmetry of the system, as was the case in the research presented in the paper cited [4], increases the synchronising torque of the vibrators.…”

“…12b. Formula (43) developed in paper [4] was used to analyse the synchronising moment. This refers to the ideal case in which, due to the assumed symmetry, the equations of plane motion of the conveyor in the plane of operation were obtained, and its analytical form could be determined.…”

Experimental Analysis of Transverse Stiffness Distribution of Helical Compression Springs

“…Among the broad range of their applications, those requiring knowledge of the transverse stiffness of the spring pose immense challenges. Examples of such applications are vibratory conveyors [1], railroad bogies [2,3], or vibration absorbers [4]. To support mechanical engineers in the design of such systems, many studies have been published in recent decades; mainly focusing on analytical models enabling the calculation of spring characteristics.…”

Self-synchronization of drive vibrators of an antiresonance vibratory conveyor

“…One of them was the generalized system of angular velocity disturbance parameters for four unbalanced rotors, and the other was the generalized system of three-phase disturbance parameters. Researchers have also obtained satisfactory results regarding the synchronization of unbalanced masses in spatial motion (Zhao, 2010;Cieplok and Wójcik, 2020;Fang et al, 2019). Because of strong nonlinear connections between unbalanced masses and the body of the device (Dimentberg et al, 1997), some analyses concerning transient processes are still based on numerical investigation (Zhang et al, 2019;Shokhin et al, 2021).…”