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Journal articles on the topic 'Vibration granulator'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Demianenko, M., M. Volf, M. Skydanenko, V. Yakovchuk, I. Pavlenko, and O. Liaposhchenko. "Numerical Simulation of the Perforated Shell’s Oscillations in a Vibrational Priller." Journal of Engineering Sciences 7, no. 2 (2020): F30—F36. http://dx.doi.org/10.21272/jes.2020.7(2).f5.

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The widespread catalysts and nuclear fuel production are the sol-gel technology, including several stages, namely, the raw materials preparation, dispersing it into drops, the granules formation in gas and then in liquid media, granules removal with liquid separation. The vibration granulator is proposed to use on the dispersion stage. One of the problems in their development is determining the vibrational characteristics of a perforated bucket filled with liquid to a certain level. Considering that vibrations are transmitted from the emitter disk through the liquid melt and cause vibrations o

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2

Imaekhai, Lawrence. "Design and Fabrication of a Plastic Film Granulating Machine." Journal of Advances in Science and Engineering 1, no. 2 (2018): 47–54. http://dx.doi.org/10.37121/jase.v1i2.27.

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Plastic film granulating machine is an industrial machine used for reducing plastic materials, mostly for grinding plastic into granules of uniform sizes for further processing either into new plastic shapes or recycled back to its parental source. This paper presents the use of locally sourced materials for realising the same machine; reducing its size and cost, while maintaining high efficiency, as well as decrease in vibration and increased shear efficiency with uniform size of granules. The machine consists of the hopper, the grinding chamber in which contains the shaft and cutting blades

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3

Ławińska, Katarzyna, Szymon Szufa, Remigiusz Modrzewski, et al. "Obtaining Granules from Waste Tannery Shavings and Mineral Additives by Wet Pulp Granulation." Molecules 25, no. 22 (2020): 5419. http://dx.doi.org/10.3390/molecules25225419.

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This paper presents the results of research on the granulation process of leather industry waste, i.e., tanning shavings. It is economically justified to granulate this waste together with mineral additives that are useful in the processes of their further processing. Unfortunately, the granulation of raw, unsorted shavings does not obtain desired results due to their unusual properties. In this study, the possibilities of agglomeration of this waste were examined by a new method consisting of the production and then the granulation of wet pulp. During granulation, no additional binding liquid

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Sergibaeva, Zh, G. Abdilova, D. Orynbekov, B. Kabulov, and M. Shamenov. "OVERVIEW AND ANALYSIS OF EQUIPMENT FOR OIL PRODUCTION BY PRESSING AND GRANULATION." Bulletin of Shakarim University. Technical Sciences, no. 1(13) (March 29, 2024): 241–50. http://dx.doi.org/10.53360/2788-7995-2024-1(13)-30.

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The article is devoted to the development of a feed granulator. Granular feed is considered as a promising product for animal husbandry due to their high nutritional value. The description of the feed granulator as the basis for the production of pellets from fodder crops is given. One of the key elements of the granulator is a matrix, which is a steel part with many holes through which the nutrient mass is passed under pressure during granulation. The matrices are divided into planar and annular. Granulators by design are also divided into roller, drum, disc, blade, vibrating and rotarycentri

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Sergibaeva, Zh, G. Abdilova, M. Shamenov, B. Kabulov та A. Yerengaliev. "Тhe development of a device for the production of pressed granules". BULLETIN of the L.N. Gumilyov Eurasian National University. Technical Science and Technology Series 148, № 3 (2024): 167–75. http://dx.doi.org/10.32523/2616-7263-2024-148-3-167-175.

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The article is devoted to the development of a device for the production of pressed granules. Granular feed is considered as a promising product for animal husbandry due to their high nutritional value. The description of the feed granulator as the basis for the production of pellets from fodder crops is given. One of the key elements of the granulator is a matrix, which is a steel part with many holes through which the nutrient mass is passed under pressure during granulation. The matrices are divided into planar and annular. Granulators by design are also divided into roller, drum, disc, bla

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6

Ma, Xuedong, Yanbing Zhang, Heli Ran, and Qingying Zhang. "Segregation simulation of binary granular matter under horizontal pendulum vibrations." International Journal of Modern Physics B 30, no. 30 (2016): 1650214. http://dx.doi.org/10.1142/s0217979216502143.

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Segregation of binary granular matter with different densities under horizontal pendulum vibrations was investigated through numerical simulation using a 3D discrete element method (DEM). The particle segregation mechanism was theoretically analyzed using gap filling, momentum and kinetic energy. The effect of vibrator geometry on granular segregation was determined using the Lacey mixing index. This study shows that dynamic changes in particle gaps under periodic horizontal pendulum vibrations create a premise for particle segregation. The momentum of heavy particles is higher than that of li

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Khomenko, Andrei P., Sergey K. Kargapoltsev, and Andrey V. Eliseev. "Development of Approaches to Creation of Active Vibration Control System in Problems of the Dynamics for Granular Media." MATEC Web of Conferences 148 (2018): 11004. http://dx.doi.org/10.1051/matecconf/201814811004.

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The article deals with the development of mathematical models and evaluation criteria of the vibration field in the dynamic interactions of the elements of the vibrational technological machines for the processes of vibrational strengthening of long-length parts with help of a steel balls working medium. The study forms a theoretical understanding of the modes of motions of material particles in interaction with a vibrating surface of the working body of the vibration machine. The generalized approach to the assessment of the dynamic quality of the work of vibrating machines in multiple modes

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Zhang, Shengwu, Wei Xu, Chiming Wang, Yuanchao Zhang, Yanan Li, and Jianwei Cheng. "Research on Thermal Dissipation Characteristics Based on the Physical Laws of Forced Vibration in Granular Assemblies." Applied Sciences 14, no. 13 (2024): 5864. http://dx.doi.org/10.3390/app14135864.

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Particle damping technology is applied in vibration and noise reduction because of its good broadband vibration reduction effect. The energy transfer and loss between particles are keys to the role of damping. This paper investigates the relationship between the thermal energy dissipation caused by the collision of particles and the input energy. The temperature rise characteristics under different vibration states are studied. The results show significant differences in the thermal dissipation characteristics of granular assemblies for different vibration states. Under equivalent excitation a

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9

Gruszczyński, Maciej, Alicja Kowalska-Koczwara, and Tadeusz Tatara. "Effect of Rubber Granulate Content on the Compressive Strength of Concrete for Industrial Vibration-Isolating Floors." Materials 18, no. 13 (2025): 3134. https://doi.org/10.3390/ma18133134.

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Ensuring vibration and impact isolation is crucial in industrial flooring design, especially where vibroacoustic comfort is a priority. Excessive vibrations can negatively affect sensitive equipment, structural durability, and personnel comfort. With the rise of automation and high-precision processes, effective vibration control in floor systems is increasingly important. Traditional solutions like elastomer pads, rubber mats, or floating floors often have high installation costs, complex construction, and long-term degradation. Therefore, there is growing interest in integrated, durable alte

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Żurawski, Mateusz, and Robert Zalewski. "Damping of Beam Vibrations Using Tuned Particles Impact Damper." Applied Sciences 10, no. 18 (2020): 6334. http://dx.doi.org/10.3390/app10186334.

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The presented paper reveals an innovative device which is the Tuned Particle Impact Damper (TPID). The damper enables the user change the dynamical features of the vibrating system thanks to rapidly tuning the volume of the container where the grains are locked. The effectiveness of proposed semi-active damping methodology was confirmed in experiments on vibrations of a cantilever beam excited by kinematic rule. Various damping characteristics captured for different volumes of the grains container and mass of granular material are presented. It is confirmed that the proposed TPID device allowe

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11

Fang, X., and J. Tang. "Granular Damping in Forced Vibration: Qualitative and Quantitative Analyses." Journal of Vibration and Acoustics 128, no. 4 (2006): 489–500. http://dx.doi.org/10.1115/1.2203339.

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Granular damping is a passive vibration suppression technique which attenuates the response of a vibrating structure by the use of a granule-filled enclosure attached to or embedded in the structure. While promising in many applications especially under harsh conditions, the granular damping mechanism is very complicated and highly nonlinear. In this paper, we perform correlated analytical modeling and numerical studies to evaluate qualitatively and quantitatively the energy dissipation in granular damping. First, an improved analytical model based on the multiphase flow theory is developed fo

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12

Inoue, Masanobu, Isao Yokomichi, and Koju Hiraki. "Particle Damping with Granular Materials for Multi Degree of Freedom System." Shock and Vibration 18, no. 1-2 (2011): 245–56. http://dx.doi.org/10.1155/2011/309682.

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A particle damper consists of a bed of granular materials moving in cavities within a multi degree-of-freedom (MDOF) structure. This paper deals with the damping effects on forced vibrations of a MDOF structure provided with the vertical particle dampers. In the analysis, the particle bed is assumed to be a single mass, and the collisions between the granules and the cavities are completely inelastic, i.e., all energy dissipation mechanisms are wrapped into zero coefficient of restitution. To predict the particle damping effect, equations of motion are developed in terms of equivalent single d

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Ferreyra, María Victoria, Julián M. Gómez-Paccapelo, Ramiro Suarez, and Luis A. Pugnaloni. "Avoiding chaos in granular dampers." EPJ Web of Conferences 249 (2021): 15003. http://dx.doi.org/10.1051/epjconf/202124915003.

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Granular dampers are passive devices used to attenuate mechanical vibrations. The most common configuration consists in an enclosure, partiallyfilled with particles, attached to the vibrating structure that needs to be damped. The energy is dissipated due to inelastic collisions and friction between the grains and between the grains and the inner walls of the container as the structure vibrates. As a result of the collisions, the mechanical response of the system often results in chaotic motion even if the driving is harmonic. Despite the vibration attenuation achieved, this chaotic response m

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14

Nadhem, Al-Khyatt Muhamad, Vsevolod Sklabinskyi, Ruslan Ostroha, et al. "Study of temperature changes in mineral fertiliser granules after contact with air in a granulation tower." Technology audit and production reserves 4, no. 3(72) (2023): 10–14. http://dx.doi.org/10.15587/2706-5448.2023.286693.

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The object of research is the process of granulation of nitrogen mineral fertilizers by the method of sprinkling. One of the most problematic areas is the lack of certainty regarding the dynamics of the temperature change of the granule when it is cooled by air in the granulation tower. The paper considers the process of urea granulation using a rotating vibrating granulator. The scheme of the rotating vibrating granulator as part of the experimental stand for granulating liquid urea is presented, the method of conducting experimental studies and the design parameters of the granulator are des

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15

TIMOFEEVA, A. S., А. А. КОZHUKHOV, and Т. V. NIKITCHENKO. "EFFECT OF METALLIZED FINES OVERLOADING OPERATIONS ON THEIR SECONDARY OXIDATION." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 77, no. 12 (2021): 1263–67. http://dx.doi.org/10.32339/0135-5910-2021-12-1263-1267.

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During transportation of a metallized product, formation of fines takes place caused by the product crushing and abrasion. The fines formed are subjected to accelerated oxidation, effecting the oxidation of the whole metallized product. The study was aimed at factors determination, intensifying the secondary oxidation of the metallized fines. Results of the study of secondary oxidation of metallized fines depending on their grain size distribution and caking presented. Experiments of 11 days duration with the metallized fines of three various grain size distribution classes were carried out. T

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16

Huntley, J. M., T. Tarvaz, M. D. Mantle, et al. "Nuclear magnetic resonance measurements of velocity distributions in an ultrasonically vibrated granular bed." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2015 (2014): 20130185. http://dx.doi.org/10.1098/rsta.2013.0185.

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We report the results of nuclear magnetic resonance imaging experiments on granular beds of mustard grains fluidized by vertical vibration at ultrasonic frequencies. The variation of both granular temperature and packing fraction with height was measured within the three-dimensional cell for a range of vibration frequencies, amplitudes and numbers of grains. Small increases in vibration frequency were found—contrary to the predictions of classical ‘hard-sphere’ expressions for the energy flux through a vibrating boundary—to result in dramatic reductions in granular temperature. Numerical simul

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17

Emtaubel, Saleh S. H., Galal Hamed Senussi, and Jim A. Rongong. "Vibration damping using granular materials." Al-Mukhtar Journal of Engineering Research 7, no. 1 (2024): 29–42. http://dx.doi.org/10.54172/xs0k3530.

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The aim of this paper is to study experimentally and numerically the effects of vibration amplitude and frequency on the performance of granular systems, with a view to optimizing their use in reducing vibrations typically experienced in machinery. Granular material systems are highly nonlinear systems and, as such, have multiple factors that will affect any experiment. This nature of granular material systems caused some discrepancies between experiment results and the simulations of mathematical models. However, the nonlinear aspect of particle damping restricted researching its theory, but

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18

Sheikh, Nadeem Ahmed, Shehryar Manzoor, and Muzaffar Ali. "Variation of Heat Flux at Lower Frequencies of Vibration in a Vibrated Granular Bed." Advances in Condensed Matter Physics 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/598354.

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Granular flows in vibrated bed exhibit various physical phenomena primarily driven by vibrating base. As the vibrating surface is the only source of energy in an otherwise dissipative flow, most of the theoretical models relate the steady state energy input to the RMS velocity of vibration. Here variation of heat flux is studied at varying frequency of vibration while keeping the RMS vibration velocity and the cell loading constant. Using single particle analysis and MD simulations, an extended version of grain-base collision is observed resulting in the reduction of heat flux at lower frequen

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19

Brennen, C. E., S. Ghosh, and C. R. Wassgren. "Vertical Oscillation of a Bed of Granular Material." Journal of Applied Mechanics 63, no. 1 (1996): 156–61. http://dx.doi.org/10.1115/1.2787191.

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A bed of granular material which is subjected to vertical vibration will exhibit at least one sudden expansion at a critical acceleration amplitude. This sudden expansion corresponds to a bifurcation similar to that exhibited by a single ball bouncing on a vibrating plate. Theoretical analysis based on this model yields results which are in accord with the experimental observations. Other bifurcations may occur at higher vibration levels.

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20

Nekrylov, Andrey, Andrey Grymzin, Sergey Podgornov, Vasiliy Sokolnikov, and Gennadiy Suhochev. "Strengthening and finishing of hard-to-reach technological flow channels of parts." Science intensive technologies in mechanical engineering 2020, no. 7 (2020): 20–23. http://dx.doi.org/10.30987/2223-4608-2020-7-20-23.

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A method is offered for profile surface strengthening in blade part channels. This method integrates processes of vibration and extrusion processing. During processing the oscillations from a vibratory machine are passed to the part worked and located within a cylindrical container with granulated during processing work environment. Under the impact of low-frequency vibrations at the expense of periodic alternate container revolutions a reciprocal shift of strengthening granulated environment on inter-blade channels of the part takes place.

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21

Pascot, Arthur, Ghita Marouazi, and Sébastien Kiesgen De Richter. "Discharge of a granular silo under mechanical vibrations." EPJ Web of Conferences 249 (2021): 03037. http://dx.doi.org/10.1051/epjconf/202124903037.

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In this paper, we study the flow rate of model granular material in a silo under the influence of mechanical vibrations. Experimental measurements and discrete element simulations (DEM) are performed in a quasi-2D silo. The influence on the flow rate of the opening size and the vibration applied on the entire silo is studied. Two distinct regimes are evidenced, governed by the Froude number Fr and the relative frequency Ω. In the first regime, a decreased flow rate is observed when increasing the vibration intensity. This behavior is explained by the presence of reorganizations induced by the

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22

Zozulyak, Igor. "JUSTIFICATION OF CONSTRUCTION-TECHNOLOGICAL PARAMETERS OF INFRARED VIBRATION DRYER." ENGINEERING, ENERGY, TRANSPORT AIC, no. 1(108) (August 27, 2020): 75–81. http://dx.doi.org/10.37128/2520-6168-2020-1-9.

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The search for resource-saving and environmentally friendly technologies and technical solutions in the production of food products should occur through the development and development of new analytical methods and constructive measures, which will lead to progress in this field not only in our country but also abroad. The efficient use of processing facilities has always been characterized by its high level of mechanization. Drying is one of the most widespread technological operations in various industries of processing and food production, in particular in the preservation of raw materials.

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23

Fedorovich, Vladimir A., and Andrew V. Mitsyk. "Mathematical Simulation of Kinematics of Vibrating Boiling Granular Medium at Treatment in the Oscillating Reservoir." Key Engineering Materials 581 (October 2013): 456–61. http://dx.doi.org/10.4028/www.scientific.net/kem.581.456.

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The results of mathematic simulation of directed motion of the circulating flow of granulated working medium in the oscillating reservoir of finishing-grinding vibration machine are given. The model is based on the physical phenomenon, at which the granulated medium changes into vibro-boiling state clue to the action of vibrations. The solutions of Navier-Stokes implicated equations give the expressions of Bessel functions and their integral transformations. The model solutions ground the complex cycloid-trochoid nature of working medium kinematics on the vibration treatment operations and all

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Prasad, Braj Bhushan, Fabian Duvigneau, Daniel Juhre, and Elmar Woschke. "Experimental study of particle dampers applied to wind turbine blades to reduce low-frequency sound emission." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 6 (2021): 71–82. http://dx.doi.org/10.3397/in-2021-1125.

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Sound emission from an onshore wind turbine is one of the significant hurdles to use wind energy to its full potential. The vibration caused by the generator is transmitted to the blades, which radiates the sound to the surrounding. The purpose of this experimental study is to present a passive vibration reduction concept, which is based on the high damping properties of granular materials. The efficiency of this concept will be investigated using a laser scanning vibrometer device. For the experimental purpose in the laboratory, small-scale replicas inspired by the original configurations are

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Sellerio, Alessandro L., Daniele Mari, and Gérard Gremaud. "Fluidized States of Vibrated Granular Media Studied by Mechanical Spectroscopy." Solid State Phenomena 184 (January 2012): 422–27. http://dx.doi.org/10.4028/www.scientific.net/ssp.184.422.

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We investigate the jamming transition observed in vibrated granular systems composed of millimeter size glass beads. When a granular system is submitted to vibrations with decreasing intensity, it evolves in a way similar to glass-forming liquids: from a low viscosity, liquid-like state, it evolves into an amorphous jammed state. This evolution is observed by the means of an immersed oscillator acting as a torsion pendulum in forced mode. The complex susceptibility of the oscillator is measured as a function of the probe forcing frequency and of the vibration intensity. Focusing on the strongl

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Prasad, Braj Bhushan, Fabian Duvigneau, Daniel Juhre, and Elmar Woschke. "Application of Particle Dampers on a Scaled Wind Turbine Generator to Improve Low-Frequency Vibro-Acoustic Behavior." Applied Sciences 12, no. 2 (2022): 671. http://dx.doi.org/10.3390/app12020671.

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The purpose of this paper is to introduce a honeycomb damping plate (HCDP) concept based on the particle damping technique to reduce the low-frequency vibration response of wind turbine generators. The HCDP cells contain granular materials and are mounted at different positions on the generator to reduce the transmission of vibrations from stator ring to stator arm. To investigate the efficiency of the HCDP concept in the laboratory, a small-scale replica inspired by the original wind turbine generator is used as reference geometry. The efficiency of the vibration attenuation by using the HCDP

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Ni, Su Huan, and Qing Guo Chen. "Dynamic Research on Vibration-Impact Crushing System of a Bilateral Single-Mass." Advanced Materials Research 308-310 (August 2011): 1914–17. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.1914.

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The vibrating roller crusher convert relative vibration generated by two rigid bodies to bring high-frequency impulse on grain layer (or granular) in chamber, which makes grain crush to particle. Based on the science of vibration, dynamics model in vibration-impact crushing system of a bilateral single-mass and vibration differential equations are established. By dynamic analysis, amplitude frequency curve, hysteresis impact curve and energy absorption curve are all founded. The curves on dynamic response are discussed. Under the consideration of their results, displacement, velocity and accel

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Dan, Gao, Wu Linfeng, Hu Kaiqin, and Wang Zheng. "Simulation of Screening Performance of Linear Vibrating Screen for Sand Sorting Based on Discrete Element Method." Journal of Engineering Research and Reports 26, no. 2 (2024): 60–68. http://dx.doi.org/10.9734/jerr/2024/v26i21072.

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Screening technology has been widely used in the grading of granular materials, in order to improve the screening efficiency and screening quality of sand particles, a linear vibrating screening device was designed. Analyzing the motion state of the vibrating screen, it is found that the factors affecting the screening efficiency and screening quality, mainly include: vibration frequency, amplitude and screen surface inclination angle. Taking sand grains as the research object, the Hertz-Mindlin with JKR contact model was chosen to analyze the influence of individual factors on the screening p

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Taufiq, Muhammad, Iskandar Hasanuddin, Mohd Iqbal, and Friesca Erwan. "Analyzing the Vibration Exposure to the Safety and Health at Workplace: A Case in the Urea Granulation Unit of the Fertilizer Factory." Jurnal Optimasi Sistem Industri 20, no. 2 (2021): 115–24. http://dx.doi.org/10.25077/josi.v20.n2.p115-124.2021.

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This study aims to evaluate the vibration exposure experienced by workers in the Urea Granulation Screen Unit (UGSU) at the fertilizer factory in Aceh, Indonesia. This study involved 30 labors in charge as operators, mechanical maintenance officers, electrical maintenance officers, instrument maintenance officers, and inspectors. The measurement of vibration was carried out using a Triaxial Accelerometer with Integral Magnet and shows that the vibration exposure on the factory floor of the urea granulation screen unit occurs vertically with a minimum value of 0.298 m/s2 and a maximum of 1.630

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Cordero, Patricio, Dino Risso, and Rodrigo Soto. "Effect of the vibration profile on shallow granular systems." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 373, no. 2056 (2015): 20150116. http://dx.doi.org/10.1098/rsta.2015.0116.

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We describe the collective behaviour of a system of many inelastic spherical particles inside a box which is being periodically vibrated. The box is shallow, with large horizontal dimensions, while the height is less than two particle diameters. The vibrations are not symmetric: the time the box is moving up is, in general, different from the time it is moving down. The limit cycles of isolated grains are largely affected by the asymmetry of the vibration mode, increasing the size in phase space of the chaotic regions. When many grains are placed in the box, the phase separation between dense,

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Kuznecov, S., and A. Al' Shemali. "MODIFIED CAM-CLAY MODELS FOR DYNAMIC ANALYSIS OF GRANULAR METAMATERIALS IN EARTHQUAKE ENGINEERING." Construction Materials and Products 4, no. 3 (2021): 54–60. http://dx.doi.org/10.34031/2618-7183-2021-4-3-54-60.

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the problem of protecting buildings and structures from vibrations of natural and artificial nature is im-portant for modern construction. One of such modern methods of protection is seismic pads. The purpose of this work was to study the effect of adding a layer of granular metamaterial under a slab foundation on the vibration of a building under the influence of seismic shear waves (S-waves). To achieve this objective, the finite element method (FEM) was used in combination with Cam-Clay models. The FE model consists of a ten-story superstructure rested on the slab foundation, under which th

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Ni, Su Huan, and Qing Guo Chen. "Dynamic Research on Vibration-Impact Crushing System of a Unilateral Single-Mass." Applied Mechanics and Materials 401-403 (September 2013): 125–28. http://dx.doi.org/10.4028/www.scientific.net/amm.401-403.125.

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The vibrating roller crusher make relative vibration generated by two rigid bodies to bring high-frequency impulse. The force impact on grain layer (or granular) in chamber, which makes grain crush. Based on the newton's law, the vibration differential equations and dynamics model in vibration-impact crushing system of a unilateral single-mass are established. By dynamic analysis, amplitude frequency curve, hysteresis impact curve and energy absorption curve are all found. On the numerical values, principal resonance of system on forced oscillation is solved. Displacement, velocity and acceler

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Hidalgo-Signes, C., J. Garzón-Roca, J. M. Grima-Palop, and R. Insa-Franco. "Use of rubber shreds to enhance attenuation of railway sub-ballast layers made of unbound aggregates." Materiales de Construcción 67, no. 326 (2017): 115. http://dx.doi.org/10.3989/mc.2017.00316.

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One of the approaches for solving the problem of induced vibrations in railways is by slightly modifying the materials that form the track. A study is presented of the attenuation capacity of mixes composed of granular soil and rubber shreds when used as sub-ballast (the layer located immediately below the ballast layer). Rubber shreds are obtained from scrap tyres, a troublesome waste material whose reuse and recycling is necessary. A series of mixes of granular soil and rubber shreds with rubber contents of between 1% and 10% are submitted to hammer impact tests to study their response to dy

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Nichvolodin, Kostiantyn, Vsevolod Sklabinskyi, and Oleksandr Yurchenko. "Determination of the temperature of mineral fertiliser granules after contact with the air in a granulation tower." Technology audit and production reserves 4, no. 3(78) (2024): 28–32. http://dx.doi.org/10.15587/2706-5448.2024.310855.

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The object of research is the process of cooling mineral fertilizer granules in a granulation tower. The main problem that was solved was the analysis of the temperature mode of cooling the granules to increase their strength and quality, as well as to reduce the probability of their destruction during storage and transportation. The design of a rotating vibrating granulator (RVG) and a mathematical model for calculating the temperature of granules and air at different stages of the granulation process are presented. Reynolds, Peclet and Prandtl criteria are used to describe hydrodynamic and t

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Liu, Wen, Jian Bo Tan, Ji Qiang Li, and Xu Ding. "Influence of Process Papameters by Vibrational Cooling-Shearing Slope on Microstructures of Semi-Solid ZAlSi9Mg Alloy." Advanced Materials Research 211-212 (February 2011): 142–46. http://dx.doi.org/10.4028/www.scientific.net/amr.211-212.142.

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An experimental vibrational cooling-shearing slope was developed to prepare the ZAlSi9Mg semi-solid alloy. The results show that the molten alloy is nucleated heterogeneously under shearing of the gravitation and vibration on the inclined cooling plate surface. Primary α-Al phase converts gradually from the cellular dendrite into tiny spherical or granular crystal. Under 600°C of pouring temperature, 600mm of casting length and 50Hz of vibration frequency, the semisolid alloy melt with good microstructure can obtained. In the alloy melt the average grain size of the original α-Al phase is 50μm

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Andrukhiv, Andriy, Maria Sokil, Solomiia Fedushko, Yuriy Syerov, Yaryna Kalambet, and Tomas Peracek. "Methodology for Increasing the Efficiency of Dynamic Process Calculations in Elastic Elements of Complex Engineering Constructions." Electronics 10, no. 1 (2020): 40. http://dx.doi.org/10.3390/electronics10010040.

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This study deals with a methodology for increasing the efficiency of dynamic process calculations in elastic elements of complex engineering constructions. We studied the complex dynamic processes in a simple engineering construction, a mechanical system of an elastic body–continuous flow of homogeneous medium. The developed methodology is based on the use of a priori information on some of the vibrations forms, the construction of a “simplified” mathematical model of system dynamics, and the obtaining of an analytical relationship that describe the overall range of factors on the elastic vibr

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Chen, Zhiquan, Xin Tong, and Zhanfu Li. "Numerical Investigation on the Sieving Performance of Elliptical Vibrating Screen." Processes 8, no. 9 (2020): 1151. http://dx.doi.org/10.3390/pr8091151.

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Screening techniques have been widely deployed in industrial production for the size-separation of granular materials such as coal. The elliptical vibrating screen has been regarded as an excellent screening apparatus in terms of its high screening efficiency and large processing capacity. However, its fundamental mechanisms and operational principles remain poorly understood. In this paper, the sieving process of an elliptical vibrating screen was numerically simulated based on the discrete element method (DEM), and an approach coupling the DEM and the finite element method (DEM–FEM) was intr

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Maksym, Skydanenko, Sklabinskyi Vsevolod, Muhamad Nadhem Al-Khyatt, and Nichvolodin Kostiantyn. "Determination of granule (prill) movement modes in the prilling tower for mineral fertilizer production." Technology Audit and Production Reserves 5, no. 3(61) (2021): 6–9. https://doi.org/10.15587/2706-5448.2021.241142.

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<em>The object of research is the mode of movement of the granules of mineral fertilizers obtained in the towers. The subject of research is the effect of the physical and chemical properties of granules, their size and initial hydrodynamic parameters on the speed of movement of the granules in the tower. The fertilizer industry is characterized by high requirements for the production of mineral fertilizers, which makes it promising to use granulation plants of large unit capacity, tower production. The resulting product must have a stable physical and chemical composition, be monodisperse wit

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Fang, Jianglong, Xiaopeng Wang, Tianning Chen, and Kai Zhang. "Research on the energy dissipation mechanism of nonobstructive particle dampers based on the dense granular flow theory." Journal of Vibration and Control 24, no. 4 (2016): 682–93. http://dx.doi.org/10.1177/1077546316649533.

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To study the energy dissipation mechanism of nonobstructive particle dampers (NOPDs) and provide guidance to the application of NOPDs, the dense granular flow theory was introduced to establish a quantitative energy dissipation model for NOPDs. The convection movement of the particles under vibrational excitations was studied using the discrete element method, and the Prandtl mixing length theory was adopted to modify the constitution law of dense granular flows. The pressure of the granular flow was obtained by equivalenting the vibrational excitation to a body force acted on particles. Theor

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Yaroshenko, Leonid. "JUSTIFICATION OF CONSTRUCTIVE AND TECHNOLOGICAL PARAMETERS OF A VIBRATION DRYER GRAIN SEEDS AND VEGETABLES FOR THE LAST-SELECT STATIONS." Vibrations in engineering and technology, no. 1(96) (August 27, 2020): 71–80. http://dx.doi.org/10.37128/2306-8744-2020-1-8.

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The paper analyzes the current state and prospects of further development of the technology of post-harvest treatment of grain seeds and vegetables, in particular its drying, on the conditions of which depends the quality of the sowing material. One of the ways to solve this problem is to apply convective drying in a pseudo-liquefied state with periodic heating and cooling of the seeds, which allows to maintain the temperature of the dried seeds within the specified limits and thereby maintain its high sowing qualities. To study the parameters of such drying at the Vinnitsa National Agricultur

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Tupolskikh, Tatiana, Natalia Gucheva, and Oleg Kirishiev. "Simulation of the process of movement of bulk material in a vibrating conveyor-mixer." MATEC Web of Conferences 224 (2018): 05021. http://dx.doi.org/10.1051/matecconf/201822405021.

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The article considers the hypothesis that one of the factors affecting the processes occurring in the tray is the nature of the vibration effect: frequency, amplitude, direction of oscillation. There arises the task of constructing a model of the motion of particles of granular medium in the tray of a vibrating conveyor-mixer. To solve the problem it is necessary to use two coordinate systems: movable and fixed.

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Goldshtein, Alexander, Michael Shapiro, Leonid Moldavsky, and Mati Fichman. "Mechanics of collisional motion of granular materials. Part 2. Wave propagation through vibrofluidized granular layers." Journal of Fluid Mechanics 287 (March 25, 1995): 349–82. http://dx.doi.org/10.1017/s002211209500098x.

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According to numerous experimental observations and theoretical models vibrated layers composed of large granules behave like a solid plastic body. In contrast, in this study experimental data are presented that reveal that, for constant vibration amplitudes A ≥ 1 cm with the frequency ω increasing from zero, all layers pass through three vibrational states, with the respective behaviours being as of (i) a solid plastic body, (ii) a liquid, (iii) a gas. In the liquid-like vibrational state transverse waves propagating along the layer width were observed. These waves were shown to be gravitatio

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Atul, Tiwari, and Narayan Bhatt Aditya. "Study on Submerged Arc Welding Slag Recycling for Stainless Steel Welding: A Review." Recent Trends in Production Engineering 6, no. 2 (2023): 43–50. https://doi.org/10.5281/zenodo.8285096.

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<em>The submerged arc welding process is the type of fusion welding process that uses a continuously moving electrode towards the workpiece. The granular flux is used in submerged arc welding, which is kept in the hopper and flows through the nozzle ahead of the weld pool. When the arc is generated between electrode and workpiece, the flux melts and form molten slag Submerged arc welding uses a granular flux that is converted to slag during welding. The generated slag is treated as waste that contains residues of minerals and is non- biodegradable. Due to its non-biodegradable nature, it creat

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BARNUM, A. C. B., ARIF OZBAY, and E. R. NOWAK. "COMPACTION AND DENSITY FLUCTUATIONS IN VIBRATED GRANULAR MEDIA." Advances in Complex Systems 04, no. 04 (2001): 389–96. http://dx.doi.org/10.1142/s0219525901000243.

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We report measurements of the density of a vibrated granular material as a function of time or taps. The material studied consists of monodisperse spherical glass beads confined to a long, thin cylindrical tube. Changes in vibration intensity are used to induce transitions between two steady state densities that depend on the intensity of the vibrations. We find a complex time evolution similar to previous work on the irreversible relaxation from a loose state toward a steady state. In addition, frequency dependent third order moments of the density fluctuations are measured. The data indicate

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Umehara, Mika, and Ko Okumura. "How universal is the vibration-velocity controlled granular convection?" EPJ Web of Conferences 249 (2021): 03019. http://dx.doi.org/10.1051/epjconf/202124903019.

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Recently, a number of articles have reported that granular convection induced by continuous vibration is controlled by vibration velocity, in contrast with some previous studies. We have reported such an example for the Brazil nut eﬀect when the vibration is given discontinuously, using a one-layer granular bed in a cell with down-facing side walls. Here, we report the eﬀect of vibration phase and wall friction using the same experimental system, to confirm rising motion of an intruder induced by granular convection is again governed by vibration velocity. We compare two diﬀerent cases of vibr

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Targosz, Jan, Jarosław Bednarz, and Wojciech Lisowski. "Analysis of the Possibility of Limiting the Impact of Ground Vibrations Caused During Demolition of a Towers on Environment." Archives of Acoustics 41, no. 4 (2016): 649–57. http://dx.doi.org/10.1515/aoa-2016-0062.

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Abstract Before disassemble and demolition of five granulation towers the authors planned and carried out measurements of the intensity of vibrations induced during the fall of the dismantled components of towers on the ground. The main aim of the study was to determine the maximum permissible weight of falling elements of the towers during the demolition, in terms of ensuring the protection of buildings and equipment located in the vicinity of the works. It was unacceptable to increase the vibration amplitude displacement in each section of measurement on each of the three perpendicular axes

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Huang, Jiayun, Liwei Yang, Jiqin Zhang, and Hao Hu. "Granular Fertilizer Mass Flow Measurement and Vehicle Experiments Based on Microwave Doppler Method." Applied Engineering in Agriculture 37, no. 1 (2021): 135–47. http://dx.doi.org/10.13031/aea.14013.

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HighlightsA microwave Doppler-based fertilizer mass flow measurement system was developed.The measurement system was applied in vehicle experiments.Power spectra of mass flow signal and vibration signal were obtained and analyzed.Interference suppression algorithm based on CA-CFAR reduced vibration interference.Fertilizer mass flow measurement accuracy was improved by interference suppression.Abstract. The fertilizer mass flow measurement system is typically installed on the fertilizer applicator. However, vehicle vibrations are inevitable during field operation of fertilizing equipment, and c

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Asakura, Takumi. "Numerical simulation of vibroacoustic damping by granular materials." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 2 (2023): 5510–17. http://dx.doi.org/10.3397/in_2022_0813.

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Recently, many efforts related to vibration reduction of plate vibration using granular materials can be seen. In this paper, a simulation method of the damping effect of bending vibration of the plate by granular material combining following two kinds of methods was proposed. One is the discrete element method (DEM) which simulate the motion of the granular material. The other is the finite-difference time-domain (FDTD) method which simulate the vibration of the thin plate. By using this coupling method, influence of the granular material on the plate vibration was investigated. Validity of t

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Склабінський, В. І., О. Г. Гусак, О. Ю. Юрченко, and К. В. Нічволодін. "FEATURES OF PLACEMENT OF SEVERAL ROTATING VIBRATING GRANULATORS (OVG) IN ONE GRANULATION TOWER." Праці Таврійського державного агротехнологічного університету імені Дмитра Моторного 24, no. 3 (2024): 53–61. http://dx.doi.org/10.32782/2078-0877-2024-24-3-4.

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Bolshakov, R. S., and S. K. Kargapoltsev. "On developing structural and technical solutions to ensure the vibratory displacement of the working medium." iPolytech Journal 27, no. 4 (2024): 636–44. http://dx.doi.org/10.21285/1814-3520-2023-4-636-644.

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A research study into using vibration technologies for the transport of granular working medium was carried out. A vibration testing machine, whose calculation model includes a mechanical vibration system having two degrees of freedom with a rigid body on elastic supports, was selected as an object of research. The study involved analysing the variation in the system vibrations by using the structural theory for vibration isolation systems, where a dynamic equivalent represented by a structural diagram of an automatic control system is compared to the initial calculation model. The structural

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