Controlled Passage through Resonance for Two-Rotor Vibration Unit: Influence of Drive Dynamics11The work was supported by Russian Scientific Foundation (project 14-29-00142)

Gorlatov, D.V.; Tomchin, Dmitry; Tomchina, Olga P.

doi:10.1016/j.ifacol.2015.09.204

Cited by 11 publications

(5 citation statements)

References 11 publications

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“…In this study, a two-rotor vibratory machine is considered, which can be used for mixing and transporting materials. Details of the design, complete mathematical model, and machine characteristics can also be found in [Gorlatov et al, 2015;Andrievskii et al, 2016;Fradkov et al, 2021;Shagniev et al, 2022;Andrievsky and Boikov, 2021;Tomchina, 2023], see Fig. 1.…”

Section: Double-rotor Vibrating Machinementioning

confidence: 99%

“…Several studies focused on the control of the two-rotor vibration machine have tackled issues like operation during resonant modes, speed, and phase shift synchronization. For instance, [Gorlatov et al, 2015] and [Tomchin et al, 2021] present the results of the speed gradient algorithm for reaching the Sommerfeld frequency. This algorithm has also been tested for multiple-speed synchronization [Shagniev et al, 2022;Tomchina, 2023].…”

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confidence: 99%

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Enhancing functionality of two-rotor vibration machine by automatic control

Zaitceva,

Andrievsky,

Sivachenko

2023

CAP

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The demand for the development of cyber-physical systems remains high across various production sectors. While some industries have made significant strides, others still require ongoing research and development efforts. This article delves into the application of feedback control for equipment in the processing industry, using a two-rotor vibration machine equipped with induction motors as a case study. Conventionally, such equipment is manually operated with the help of affordable constructive facilities, which does not align with the principles of Industry 4.0. In response, this paper explores an architecture for an automatic control system capable of handling various technological tasks, including mixing and transporting processed media. This architecture encompasses several components, such as real-time regulator tuning, control of the rotor speed loop, and/or adjustment of the phase shift between the rotors based on machine sensor measurements. A notable advantage of this control system lies in its complete software-based implementation. The article also presents the findings from full-scale experiments, demonstrating the capabilities and effectiveness of the proposed approach.

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Section: Double-rotor Vibrating Machinementioning

confidence: 99%

mentioning

confidence: 99%

Enhancing functionality of two-rotor vibration machine by automatic control

Zaitceva,

Andrievsky,

Sivachenko

2023

CAP

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“…In [Gorlatov et al, 2015] it was proposed to include a switch (time varying gain γ(t)) into the algorithm (5) providing cancellation of control signal after passage of the rotor angular velocity through resonance zone. The algorithm with a switch is implemented as follows:…”

Section: Model Of One-rotor Vibration Unit Taking Into Account the Drive Dynamicsmentioning

confidence: 99%

“…It was extended to two-rotor vibration machines [Fradkov et al, 2014]. Later flexibility of the motor shafts [Tomchin et al, 2015] and dynamics of the drives [Gorlatov et al, 2015] were taken into account.…”

Section: Introductionmentioning

confidence: 99%

Control of Passage Through Resonance Zone for 1-Rotor Vibration Unit With Time-Varying Load

Tomchina

Gorlatov

Tomchin

et al. 2021

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The speed-gradient algorithms for controlled passage through the resonance zone of the one-rotor vibration unit are studied by computer simulation. The objective of the study is to analyze dependence of the control performance on the loading mode and the electric drive dynamics. In order to obtain an algorithm better suitable for practical implementation the theoretically designed algorithm is simplified by simplifying the expression for the total energy. First of all, we neglect the terms corresponding to the kinetic and potential energy of the load, since there are no load mass sensors on the stand. the term containing the inclination angle of the platform is neglected. In addition, the platform inclination angle and dynamics of the drives were neglected too. Efficiency of the proposed simplified algorithm for different loading modes, including linear loading with different loading rates and sine-shaped oscillatory loading.

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“…Zhu et al [29] found that the variable stiffness damping support was very effective to control vibration of the rotor, which could successfully be used in the real rotating machinery. Lopez-Medina and Silva-Navarro [30], Ortega et al [31,32] presented an active vibration control scheme to reduce the vibration in rotor-bearing systems, which was supported on two ball bearings, and one of the bearings can be automatically moved to change the rotor stiffness. Elfass et al [33] proposed the method and loading module to mechanically increase the end bearing stiffness of pile/drilled shaft.…”

Section: Introductionmentioning

confidence: 99%

The Amplitude Reduction of a Flexible Rotor Passing the Critical Speed by Modulating Acceleration and Stiffness Simultaneously

Ding

et al. 2018

MENG

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Background: When an unbalanced flexible rotor passes through its critical speed, it is very easy to result in great vibration amplitude, even the destruction of rotor and bearings. Therefore, it is significant for high-speed rotating machines to reduce the vibration amplitude of flexible rotor. Various patents have been discussed in this article. Objective: The purpose of this study is to find out the amplitude reduction method and simulate the feasibility of flexible rotor passing through critical speed. Methods: On the basis of the model of single disk rotor system with eccentric mass, a novel method is presented to reduce the vibration amplitude passing through critical speed by modulating the acceleration and stiffness simultaneously. Firstly, the amplitude characteristic of a flexible rotor with different acceleration and supporting stiffness was investigated. Then, the method of changing the stiffness during variable acceleration was carried out by numerical simulation based on Newmark algorithm. Furthermore, the strain energy of rotor and input power were also analyzed by using the method of simultaneous modulation of acceleration and stiffness. Results: The simulation results revealed that the simultaneous modulation of acceleration and stiffness could reduce the vibration amplitude of rotor effectively, which was reduced by 44% and 13%, comparing with the single variable acceleration and the single variation of stiffness, respectively. Moreover, the variation tendency of total energy was similar to that of the rotor amplitude, which could be controlled at a very small level. The input power was mainly dependent on the acceleration, but had very little to do with the stiffness. Conclusion: The method was suitable for the model of single disk rotor system, and it could also be applied to complex rotor systems, which was very useful for the security of high speed rotating machine.

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Controlled Passage through Resonance for Two-Rotor Vibration Unit: Influence of Drive Dynamics11The work was supported by Russian Scientific Foundation (project 14-29-00142)

Cited by 11 publications

References 11 publications

Enhancing functionality of two-rotor vibration machine by automatic control

Enhancing functionality of two-rotor vibration machine by automatic control

Control of Passage Through Resonance Zone for 1-Rotor Vibration Unit With Time-Varying Load

The Amplitude Reduction of a Flexible Rotor Passing the Critical Speed by Modulating Acceleration and Stiffness Simultaneously

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