Schematic representation of the base's center of gravity movement from equilibrium position B 0 to an arbitrary position B, and the vibratory trough's center of gravity movement from equilibrium ...
Vibratory screening, sieving, and conveying processes are widely used in various industries. Among a great variety of vibration exciters, the unbalanced rotors are the most reliable, simple, and ...
(PDF) Two stage vibration isolation of vibratory shake-out conveyor … The paper's objective is to study the dynamic parameters and operating conditions of the vibratory conveyor, which is based on the double-mass oscillatory system and equipped with the pull-type (single-cycle) electromagnetic exciter. ... the oscillation frequency excitation …
The paper studies the dynamic behavior of the vibratory sieving conveyor equipped with the twin crank-slider excitation mechanism. The main purpose of this research consists in substantiating the possibilities of …
A resonant type vibratory drive is discussed. By suitable power converters and related PWM control one can achieve adjusting vibratory excitation force of vibratory actuator, i.e. vibratory conveying of particulate materials on conveyor load carrying element. Simulation model of the vibratory actuator has been generated by using program …
The material exerts a constant pressure on the gutter equal to its weight. Vibrating conveyors (Fig. 6.2), provide material transport through a gutter driven in a harmonic …
The diagnostics of sieving screens and other vibratory machines is the most complicated scientific and engineering task due to a permanent periodical (technological) excitation and stochastic impulsive (non-Gaussian) disturbances from the falling pieces of bulk materials, which directly influence the reliability of damage alarming in the condition monitoring …
In order to obtain a more precise state observer, and consequently better performance and (or) control quality, more detailed mathematical model of the resonant vibratory conveyor is required. Mathematical model of a resonant linear vibratory conveyor driven by an electromagnetic excitation force is presented.
Railway vehicle induced ground-borne vibration perceived as mechanical vibration of the human body has a frequency content in the interval 1–80 Hz, while higher frequency vibration between 16 and 250 Hz is radiated as noise inside buildings [1, 9]. The vibration is generated by the static and dynamic components of the vertical wheel–rail ...
In this way, operation of EVCD becomes independent of network supply frequency. The paper presented a possible solution low-frequency IGBT switching converter for excitation force control of resonant EVCD. Key Words: Vibratory conveyor, vibratory actuator, current control, force control, power converte, IGBT 1.
A resonant type vibratory drive is discussed. By suitable power converters and related PWM control one can achieve adjusting vibratory excitation force of vibratory actuator, i.e. vibratory conveying of particulate materials on conveyor load carrying element. Simulation model of the vibratory actuator has been generated by using program …
Mathematical model of a resonant linear vibratory conveyor driven by an electromagnetic excitation force is presented. Derivation of the mathematical model is …
Vibration is a mechanical phenomenon causing oscillations around a fixed point. The vibration occurs when elastic bodies, like springs, are displaced from their equilibrium (fixed) positions due to external forces.. This is because when a body is moved by external application, internal forces in the form of elastic or tension energy are present.
Base Excitation models the behavior of a vibration isolation system. The base of the spring is given a prescribed motion, causing the mass to vibrate. This system can be used to model a vehicle suspension system, or the earthquake response of a structure. Rotor Excitation models the effect of a rotating machine mounted on a flexible floor.
Reversing a granular flow on a vibratory conveyor R. Grochowski and P. Walzel Mechanische Verfahrenstechnik, Universität Dortmund, D–44227 Dortmund, Germany arXiv:cond-mat/0311641v1 [cond-mat.soft] 28 Nov 2003 M. Rouijaa, C.A. Kruelle∗, and I. Rehberg Experimentalphysik V, Universität Bayreuth, D–95440 Bayreuth, Germany …
Theoretical values of excitation force on the trough corresponding to the serial number for various frequency ratios of the vibratory feeder are compared with the experimental values of excitation force at point is presented in Fig. 8 (a). The experimental values revealed that the force generated on the trough during resonance is considerably ...
The paper studies the dynamic behavior of the vibratory sieving conveyor equipped with the twin crank-slider excitation mechanism. The main purpose of this research consists in substantiating the possibilities of implementing the improved drive for providing the controllable vibration parameters of the working member (conveying tray, sieve, etc.) in …
The paper's objective is to study the dynamic parameters and operating conditions of the vibratory conveyor, which is based on the double-mass oscillatory system and equipped with the pull-type ...
The paper aims to substantiate the possibilities of implementing the crank-type vibration exciters through computer simulation and experimental testing of the vibra-tory …
The response of a SDOF system subjected to a unit impulse force having a finite time integral can be determined by the time integral for the force. Pˆ = Z P(t)dt (5) where Pˆ is the linear impulse of force P(t). When the duration of P(t) approaches zero (t → 0), the impulse force approaches infinity but Pˆ becomes equal to unity or the ...
M ODELLING AND EXPERIMENTAL INVESTIGATION OF THE VIBRATORY CONVEYOR OPERATING CONDITIONS. V ITALIY K ORENDIY, O LEKSANDR K ACHUR, I HOR H UREY, R OSTYSLAV P REDKO, R OMAN P ALASH, O LEKSANDR H AVRYLCHENKO 2 V IBROENGINEERING PROCEDIA. D ECEMBER 2022, V OLUME 47 conditions of the …
The paper's objective is to study the dynamic parameters and operating conditions of the vibratory conveyor, which is based on the double-mass oscillatory system and equipped with the pull-type (single-cycle) electromagnetic exciter. ... the oscillation frequency excitation angle at which operates the actuating force and the coefficient mode of ...
The primary purpose of this study is to substantiate the design parameters and analyze the dynamic characteristics of the vibratory screening conveyor based on the single-mass oscillatory...
The vibratory feeders with electromagnetic excitation called electromagnetic vibratory feeders (EMVF) are commonly used for performing gravimetric flow of granular and particulate materials in ...
Mathematical model of a resonant linear vibratory conveyor driven by an electromagnetic excitation force is presented. Derivation of the mathematical model is based on the kinetic and potential energies, …
The vibratory feeder is a forced vibrating system mostly used in industries to feed material from hoppers, bins, silos and storage piles to belt conveyors. It is used to …
Abstract. Vibrating conveyors as components of assembly lines are used in various technical branches, especially in the automotive industry. They do not only provide …
Vibration issues of a five-stand tandem cold rolling mill were found in the steel production practice, and the experimental observation and numerical analysis indicated that the vibrations were related to the back-up roll bearing. The results were validated by replacing the back-up roll bearing with the new bearing resulting in 30% …
actuator (EVA) as source of excitation force F and flexible elements-2. Flexible elements are made of composite leaf (Fiberglass) springs. ... while, on the other side, they are fitted to the base-3 of the device and sloped down under certain angle. The base of vibratory conveyor is resting on rubber pads-4 to the foundation. EVA consists of a ...
In order to obtain a more precise state observer, and consequently better performance and (or) control quality, more detailed mathematical model of the resonant vibratory conveyor is required. Mathematical model of a …