Implementation of dual-frequency resonant vibratory machines with pulsed electromagnetic drive

Gursky, Volodymyr; Kuzio, Igor; Lanets, Oleksiy; Tolegenova, Akmaral; Syzdykpayeva, Aigul

doi:10.15199/48.2019.04.08

Cited by 9 publications

(6 citation statements)

References 10 publications

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“…An accurate assessment and analysis of these and other works will make it possible to more reasonably formulate methods for solving the problem. Thus, the work [4] is devoted to the study of the general problems of the motion of two-frequency resonant vibration devices with a pulsed electromagnetic drive. A rational method for the implementation of two-frequency resonant systems with multiple eigenfrequencies is considered.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determination of the workflow of energy-saving vibration unit with polyphase spectrum of vibrations

Nazarenko

Svidersky

Kostenyuk

et al. 2020

EEJET

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Розроблена нова схема збудження коливань робочих органiв блокiв вiбрацiйної установки на основi змiни фазових кутiв дебалансiв мiж собою. Реалiзацiя такої iдеї дозволяє за один оберт дебалансiв здiйснити ту кiлькiсть вiбродiй на технологiчне середовище, скiльки вiброблокiв має установка. Таким чином реалiзовано спектр частот, що значно пiдвищує ефективнiсть технологiчного процесу. Запропонована схема придатна для реалiзацiї рiзних процесiв iз зменшенням енерговитрат у порiвняннi з iснуючими конструкцiями вiбрацiйних машин. Розроблена конструктивна схема вiбрацiйної установки iз чотирма вiбрацiйними блоками. Вибрана математична модель на основi представлення параметрiв машини дискретними, а оброблювальне середовищеконтинуальними. Моделювання робочого процесу вiбрацiйної установки виконано на основi використання методу скiнченних елементiв. Скiнченно-елементна модель складена шляхом апроксимацiї всiх несучих елементiв, в тому числi i формо утворюючої поверхнi, двовимiрними скiнченними елементами. Вiброiзоляцiйнi опори та пружнi елементи моделi прийнятi тривимiрними, так як процеси, що протiкають в таких елементах конструкцiї, є бiльш складними з точки зору розсiяння енергiї. Дослiджений робочий процес енергоощадної вiбрацiйної установки, що реалiзує полiфазнi коливання. Складенi рiвняння руху такої системи та визначенi амплiтуди та частоти коливань, що визначають цей рух. Здiйснена оцiнка розподiлу амплiтуд коливань по периметру рами, закрiпленої на вiбрацiйних блоках вiброустановки. Визначено можливiсть ефективного використання полiфазного спектру коливань при виконаннi процесiв сортування та ущiльнення матерiалiв на основi реалiзацiї зсувних та нормальних напружень. Запропонована схема енергоощадної вiбрацiйної установки та визначенi параметри вiдкривають реальну можливiсть для використання в рiзних галузях. Отриманi результати використанi при проектуваннi енергозберiгаючої конструкцiї вiброустановки iз врахуванням фазових кутiв для ущiльнення технологiчних середовищ Ключовi слова: вiбрацiйна установка, вiброблок, дебаланс, модель, фазовi кути, амплiтуди, частоти i форми коливань

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determination of the workflow of energy-saving vibration unit with polyphase spectrum of vibrations

Nazarenko

Svidersky

Kostenyuk

et al. 2020

EEJET

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“…In this case, in contrast to a single-frequency system, it is more effective to provide dual-frequency oscillations of technological machines [15,16]. For this purpose, resonant machines with multiple frequencies and with clearly established values of multiple harmonics of the oscillations at the corresponding frequencies are proposed [17]. To control these machines, it is ultimately necessary to implement adaptive and synchronized drives.…”

Section: State Of the Art In Design Of Inertial Drivesmentioning

confidence: 99%

Energy-Saving Inertial Drive for Dual-Frequency Excitation of Vibrating Machines

et al. 2020

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The low energy efficiency and excessive power of electric motors of large-scale vibrating machines for processing bulk materials motivated a new design of the inertial drive. This drive consists of one motor and two coaxial unbalanced masses, whose rotational frequencies are related in the ratio 2:1. This approach allows for a generation of the excitation force with variable amplitude and frequency, which changes depending on the inertial characteristics and shaft rotation frequency and does not relate to the phase difference of the unbalanced masses. Because of this, the symmetry axis of the resulting vector hodograph can be changed. The spectral composition of the exciting force up to 200 Hz contains higher harmonics, the energy share of which is 25.4% from the 2nd harmonic and 14.1% from the 3rd and higher harmonics that correspondingly improves bulk material treatment in comparison to single-frequency vibrators. The finite element model is used for checking the strength capacity of the most loaded units of a dual-frequency drive. Its use allows the realization of complex trajectories of motion that are more technologically efficient for variable parameters of the treated media and energy saving in sieving screens and other vibrating machines.

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“…It is known that a straight rod or beam has many natural forms of vibration, where each form of vibration corresponds to a certain value of frequency. Gursky et al [2] studied the natural frequency of beam vibrations by the finite element method. However, this method can create a number of errors, which forces researchers to vary the complexity (density) of the structural grid to obtain acceptable results.…”

Section: Introductionmentioning

confidence: 99%

Modelling of Equivalent Mass and Rigidity of Continual Segment of the Inter-Resonance Vibration Machine

Lanets

Dmytriv

Kachur

et al. 2021

International Journal of Applied Mechanics and Engineering

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The article deals with a continual segment of an inter-resonance vibration machine. In the form of a solid with distributed parameters this segment combines two defining parameters, namely: the inertial parameter of reactive: masses and appropriate rigidity of elastic coupling. These operation factors are revealed only in dynamic processes and are clearly not included in the parameters of the continual segment. Analytical dependences are developed for modeling of defining parameters of an inter-resonance system, namely: reactive mass and appropriate rigidity of elastic: coupling. Parameters of the reference point of the continual segment passing through its center of velocity are studied. The inertial parameter of the reactive mass and the rigidity of elastic coupling were modeled by the Rayleigh-Ritz method. The reliability of the results of theoretical research was confirmed experimentally and the parameters of the partial frequency of the continual segment were determined.

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Implementation of dual-frequency resonant vibratory machines with pulsed electromagnetic drive

Cited by 9 publications

References 10 publications

Determination of the workflow of energy-saving vibration unit with polyphase spectrum of vibrations

Determination of the workflow of energy-saving vibration unit with polyphase spectrum of vibrations

Energy-Saving Inertial Drive for Dual-Frequency Excitation of Vibrating Machines

Modelling of Equivalent Mass and Rigidity of Continual Segment of the Inter-Resonance Vibration Machine

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