To the Issue of Control Resonant Oscillations of a Vibrating Machine with Two Self-synchronizing Inertial Exciters

Gouskov, A.; Panovko, Grigory; Shokhin, Alexander

doi:10.1007/978-981-15-8049-9_32

Cited by 6 publications

(5 citation statements)

References 9 publications

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“…It is assumed that for the implementation of the technological process, it is necessary to excite unidirectional vertical oscillations of the platform, which in a centered system arise during synchronous antiphase rotation of debalances [13,14]. A change in the mass of the technological load and a shift in its center of mass lead to a violation of the symmetry in the system, which leads to a change in the dynamic properties of the system, a change in the shape of the vibrations, and a possible jump beyond the resonance.…”

Section: Mathematical Modelmentioning

confidence: 99%

“…The influence of the parameters of the technological load on the dynamics of such machines was investigated, in particular, in [10][11][12]. Some theoretical and experimental results on the creation of controlled resonant vibration machines are presented in the previous works of the authors of this study [13,14]. Note that in existing studies, the main attention is paid to the analysis of the stability of self-synchronizing unbalance vibration exciters in the frequency ranges far from resonance, and the issues of the influence of technological load variability on the dynamics of machines in the near-resonant frequency ranges are considered only in a quasi-stationary formulation.…”

Section: Introductionmentioning

confidence: 99%

“…To adjust and maintain the resonance oscillation mode of vibration machines with the exciters of limited power, it is necessary to use automatic control systems that monitor with a given accuracy the proximity of the synchronous rotation frequency of the debalances to the eigenfrequency of the working body oscillations [14]. Control algorithms for such control systems are usually based on comparing the measured parameters of the machine's motion with the results of the analysis of the steadystate motion modes of their mathematical models.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Analysis of the Near-Resonant Vibrations of a Vibrating Technological Machine with Self-synchronizing Unbalance Vibration Exciters

Gouskov

Panovko

Shokhin

2021

Electromechanics and Robotics

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The work is devoted to the problem of maintaining near-resonant oscillations of a technological vibration machine with self-synchronizing unbalance vibration exciters under conditions of a variable technological load on its working body. A planar model of a vibration machine with two unbalance exciters driven by asynchronous electric motors is considered. Numerical simulation methods have been used to analyze the dynamics of the system in the near-resonant frequency range at slowly changing mass and position of the mass center of the technological load on the machine's working body. The influence of the rate of change in the mass of the technological load on the oscillations of the system and the self-synchronization of unbalance vibration exciters is established. It is established that the fluctuations in the mass of the technological load lead to fluctuations of mutual phase between the vibration exciters' debalances with the same frequency. In this case, the amplitude of the mutual phase oscillations increases with increasing amplitude of the mass oscillations, practically does not change with a change in their frequency, and significantly increases as one approaches the resonant frequency.

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Section: Mathematical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Numerical Analysis of the Near-Resonant Vibrations of a Vibrating Technological Machine with Self-synchronizing Unbalance Vibration Exciters

Gouskov

Panovko

Shokhin

2021

Electromechanics and Robotics

Self Cite

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“…Vibratory machines have found applications for a huge range of tasks, for example, in the construction and production of building materials for compacting concrete mix, soil and road surfaces for the formation of reinforced concrete products, immersing piles in the ground; in mechanical engineering, the mining industry for drilling, loading, and delivery of rock mass, screening; in transport for unloading packed materials, bulk materials; in agriculture as separators, vibratory pumps, and tillage devices. The property of self-synchronization of the speeds of rotation of several kinematically and electrically unbalanced rotors is used in machines such as conveyors, feeders, screens, crushers, and mills; see [1][2][3][4][5][6][7] and the references therein.…”

Section: Introductionmentioning

confidence: 99%

Passification-Based Robust Phase-Shift Control for Two-Rotor Vibration Machine

Andrievsky

Zaitceva

Barkana³

2023

Electronics

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In this paper, the solution to the problem of robust control of the phase shift during rotation at a given speed of the unbalanced rotors for a two-rotor vibratory machine is presented. The solution to this problem is relevant for the development of vibration technologies (for example, a vibro-transportation of bulk materials). The proposed controller includes two proportional-integral (PI) rotor speed controllers with a cross-coupling, which receive signals with opposite signs from the phase shift controller. Unlike previous works, where a PI controller for phase shift control was also taken, including the adaptive controller with an implicit reference model (IRM), in the present paper, a relay-type signal controller with an integral component without a parametric adaptation is used. This approach allows, while maintaining robustness, to increase the operation speed and accuracy of the control process, avoiding at the same time the possible divergence of the tunable parameters due to the influence of noises and disturbances caused, among other things, by vibrations of the setup’s structural elements and measurement errors. For the control law design, the speed-gradient method was employed. For various types of reference phase-shift signals (constant, harmonic, chaotic), the results of extensive experimental studies performed on the mechatronic vibration setup and the simulations accomplished based on the results of identifying the parameters of the stand drive model are presented in the paper. The obtained results confirm the efficiency and robustness of the proposed algorithm and allow one to reveal the system performance properties.

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“…Recently, there has been an increased interest in the development of control algorithms for VU, in which vibration fields corresponding to inhomogeneous vibration fields of a given type are realized [Gouskov et al, 2021;Chen et al, 2021;Tomchina, 2018]. The field characteristics are understood as the semi-axes of elliptical trajectories at arbitrary points of the platform and the angles of inclination of these axes.…”

Section: Introductionmentioning

confidence: 99%

Control of vibrational field in an elastic vibration unit with DC motors and time-varying observer

Tomchina

2021

CAP

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In the paper the problem of feedback control of vibrational fields in a vibration unit is analyzed taking into account the influence of the elasticity of cardan shafts, the drive dynamics, saturation for control torques. In addition, the synthesized rotor synchronization control algorithm uses the estimates of a non-stationary observer, which makes it possible to implement it practically on a two-rotor vibration unit SV-2. The performance of the closed loop mechatronic systems is examined by simulation for the model of the two-rotor vibration unit SV-2.

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To the Issue of Control Resonant Oscillations of a Vibrating Machine with Two Self-synchronizing Inertial Exciters

Cited by 6 publications

References 9 publications

Numerical Analysis of the Near-Resonant Vibrations of a Vibrating Technological Machine with Self-synchronizing Unbalance Vibration Exciters

Numerical Analysis of the Near-Resonant Vibrations of a Vibrating Technological Machine with Self-synchronizing Unbalance Vibration Exciters

Passification-Based Robust Phase-Shift Control for Two-Rotor Vibration Machine

Control of vibrational field in an elastic vibration unit with DC motors and time-varying observer

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