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Articoli di riviste sul tema "Electromagnetic"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Achille Ecladore, Tchahou Tchendjeu, Yungho Edickson Bobo, and Nfah Eustace Mbaka. "Design and Realization of a Controlled Electromagnetic Breaking System." Journal of Engineering 2023 (August 14, 2023): 1–12. http://dx.doi.org/10.1155/2023/1426506.

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Industrial machines with sharp moving blades are extremely dangerous to workers. These machines often rotate for some time (called the run-down time) before completely stopping due to little or no brakes. In the case where brakes are used, they are mechanical in nature and are associated with problems of wear out and frequent maintenance among others. In this paper, we proposed a mathematical model and implementation of an electromagnet and design and construction of a mechanical support frame and a controller for the electromagnetic braking system. The electromagnetic braking system works on

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2

Bajpai, Shrish, Siddiqui Sajida Asif, and Syed Adnan Akhtar. "Electromagnetic Education in India." Comparative Professional Pedagogy 6, no. 2 (2016): 60–66. http://dx.doi.org/10.1515/rpp-2016-0020.

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Abstract Out of the four fundamental interactions in nature, electromagnetics is one of them along with gravitation, strong interaction and weak interaction. The field of electromagnetics has made much of the modern age possible. Electromagnets are common in day-to-day appliances and are becoming more conventional as the need for technology increases. Electromagnetism has played a vital role in the progress of human kind ever since it has been understood. Electromagnets are found everywhere. One can find them in speakers, doorbells, home security systems, anti-shoplifting systems, hard drives,

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3

R, Bharathi, Om Prakash, S, G. Gowrishankar, and S. Arun. "Electromagnetic Engine Controlled using IR Sensor." Journal of Electronics,Computer Networking and Applied Mathematics, no. 23 (April 20, 2022): 1–4. http://dx.doi.org/10.55529/jecnam.23.1.4.

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The base idea of this paper is to control the electromagnetic engine to enhance a smooth rotation by measuring distance of the piston using an IR sensor. This electromagnetic engine consists of an electromagnet, permanent magnet, Infrared Sensor, powerful microcontroller and power supply. The permanent magnet acts as a piston in this electromagnetic engine, it has magnetic field energy for a proper function. The position of permanent magnet has to be noted for electromagnets energisation in order to reduce power consumption by electromagnet. The infrared sensor mounted with electromagnet set a

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4

R, Bharathi, Om Prakash, S, G. Gowrishankar, and S. Arun. "Electromagnetic Engine Controlled using IR Sensor." Journal of Electronics,Computer Networking and Applied Mathematics, no. 23 (April 20, 2022): 1–4. http://dx.doi.org/10.55529/jecnam.23.1.4.

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Abstract (sommario):

The base idea of this paper is to control the electromagnetic engine to enhance a smooth rotation by measuring distance of the piston using an IR sensor. This electromagnetic engine consists of an electromagnet, permanent magnet, Infrared Sensor, powerful microcontroller and power supply. The permanent magnet acts as a piston in this electromagnetic engine, it has magnetic field energy for a proper function. The position of permanent magnet has to be noted for electromagnets energisation in order to reduce power consumption by electromagnet. The infrared sensor mounted with electromagnet set a

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5

R, Bharathi, Om Prakash, S, G. Gowrishankar, and S. Arun. "Electromagnetic Engine Controlled using IR Sensor." Journal of Electronics,Computer Networking and Applied Mathematics, no. 23 (April 20, 2022): 1–4. http://dx.doi.org/10.55529/jecnam.23.1.4.

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Abstract (sommario):

The base idea of this paper is to control the electromagnetic engine to enhance a smooth rotation by measuring distance of the piston using an IR sensor. This electromagnetic engine consists of an electromagnet, permanent magnet, Infrared Sensor, powerful microcontroller and power supply. The permanent magnet acts as a piston in this electromagnetic engine, it has magnetic field energy for a proper function. The position of permanent magnet has to be noted for electromagnets energisation in order to reduce power consumption by electromagnet. The infrared sensor mounted with electromagnet set a

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6

Skupień, Szymon, Paweł Kowol, Giacomo Capizzi, and Grazia Lo Sciuto. "Control System Hardware Design, Analysis and Characterization of Electromagnetic Diaphragm Pump." Applied Sciences 14, no. 17 (2024): 8043. http://dx.doi.org/10.3390/app14178043.

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In this article, a novel electromagnetic diaphragm pump design controlled by an Arduino NANO microcontroller is proposed to pump liquid inside the pumping chamber completely separated from mechanical and transmission parts. The prototype is primarily based on alternating the polarity of two electromagnets that attract or repel a permanent magnet located on a flexible diaphragm. The system hardware layout is completed by electronic components:. an Arduino NANO microcontroller created by Atmel, Headquarters San Jose, California. and display within the cabinet to control the polarization of the e

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7

DAKSHNAMOORTHY, Easu, Ralph H. RYNTATHIANG, Sarang, SIVAKUMAR, and Sidharth Krishna VINOD KUMAR. "Experimental Study of Vibration Isolation Using Electromagnetic Damping." Mechanics 30, no. 2 (2024): 183–87. http://dx.doi.org/10.5755/j02.mech.34759.

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This study presents an experimental investigation focused on the reduction of vibrations using electromagnetic damping techniques. The objective is to explore the effectiveness of electromagnetic damping in mitigating undesirable vibrations and enhancing system stability. A single-degree vertically constrained spring-mass system, two pairs of electromagnets, Lab VIEW software, an accelerometer, DAQ card were used for the experimentation. SWG 17 and SWG19 coil electromagnets were used in different conditions of energization to evaluate the effectiveness of the electromagnetic damping system. Th

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8

Xiang, Chun, Jun-Cheng Wang, Yu-Feng Gu, Shi-Jin Zhang, and Shi-An Chen. "Experiment, Optimization, and Design of Electromagnetic Track Brake for High-Speed Railways System." Mathematical Problems in Engineering 2020 (March 9, 2020): 1–11. http://dx.doi.org/10.1155/2020/6957963.

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To enhance braking force and control convenience of high-speed railway systems, this paper proposes a new electromagnetic track brake, and the corresponding design, optimization, and experimental test are implemented. The proposed track brake is longitudinal-axis magnetic circuits excited by multiple coils electromagnets, and the pole shoes are extending outward. A preliminary design of an electromagnetic track brake is developed, including iron core height, iron core width, iron core gap, excitation ampere-turn, coil arrangement form, coil thickness, and preliminary height of single-layer coi

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9

Liao, Yu, Yinshui Liu, Jun Xing, Biao Chen, and Lizhi Gao. "Electromagnetic force investigation of electromagnets with variable pole area in an electromagnetic diaphragm pump." PLOS ONE 18, no. 10 (2023): e0292685. http://dx.doi.org/10.1371/journal.pone.0292685.

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Electromagnetic diaphragm pump is a kind of widely applied diaphragm pump that has promising sealing performance, simple structure and low power loss. Planar pole electromagnet is a significant component of the electromagnetic diaphragm pump. However, the sharply changing displacement-force characteristics of the planar pole electromagnet do not match the constant load characteristics of the electromagnetic diaphragm pump. Herein, an electromagnet with variable pole area is put forward. A theoretical relationship between structural parameters, the Ampere turns and the electromagnetic force of

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10

Jiang, Zeqi, Jianhua Fang, Fei Chen, Boshui Chen, and Kecheng Gu. "Effect of electromagnetic field on tribological properties of two lubricating oils containing zinc dithiophosphate." Industrial Lubrication and Tribology 70, no. 5 (2018): 878–87. http://dx.doi.org/10.1108/ilt-01-2017-0004.

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Purpose This paper aims at understanding tribological properties of lubricating oils doped with zinc dithiophosphate(ZDDP) with and without electromagnetic field impact. Design/methodology/approach The friction and wear properties of the oils formulated with zinc butyloctyl dithiophosphate (T202) or zinc dioctyl dithiophosphate (T203) under electromagnetic field or nonelectromagnetic field were evaluated on a modified four-ball tribotester. The characteristics of the worn surfaces obtained from electromagnetic or nonelectromagnetic field conditions were analyzed by scanning electronic microsco

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11

E., I. Baida, V. Klymenko B., G. Pantelyat Michael, A. Yelanskyi Yu., Trichet D., and Wasselynck G. "CHALLENGES OF DYNAMIC SIMULATION OF HIGH-SPEED ELECTROMAGNETIC VALVES OF GAS DISTRIBUTION DEVICES." Electrical engineering & electromechanics, no. 5 (October 27, 2020): 3–11. https://doi.org/10.20998/2074-272X.2020.5.01.

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<strong><em>High-speed electromagnetic valves of gas distribution devices are used in modern missile and space technology as jet micro-motors of the executive elements of missile stabilization systems, as well as to control the movement of spacecrafts in space. The problem of creating such valves which are simple and reliable in the operation is relevant. In this work, it is proposed at the development and design stage to perform computer modelling of mutually coupled electromechanical processes, such as: distribution of transient electromagnetic field, transients in an electric circuit, and m

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12

Bochkarev, I. V., and I. V. Bryakin. "Development of a new method of diagnostics electromagnetic drive power and commutation mechanisms." Power engineering: research, equipment, technology 22, no. 3 (2020): 68–77. http://dx.doi.org/10.30724/1998-9903-2020-22-3-68-77.

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A new method for diagnosing power and switching electromagnetic mechanisms containing a control electromagnet and a movable armature is proposed. The movable element of the diagnosed electromagnetic mechanism (EMM) is irradiated with a high-frequency probing electromagnetic field and the reradiated electromagnetic field from it is recorded. The source of the probing field and the receiver of the re-radiated field is the EMM electromagnet winding. The probing electromagnetic field is formed by imposing on the low-frequency high-voltage operating voltage of the supply winding of the electromagne

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13

Suzumori, Koichi, Takashi Nagata, Takefumi Kanda, Kazuo Uzuka, and Isao Enomoto. "Development of Electromagnetic Nutation Motor (Electromagnetic Investigation)." Journal of Robotics and Mechatronics 16, no. 3 (2004): 327–32. http://dx.doi.org/10.20965/jrm.2004.p0327.

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The nutation motor, a new type of stepping motor we developed, features a simple structure, high resolution, and speed reduction, and operates on electromagnetic power. Our previously developed nutation motor operated on air pressure. We designed an electromagnetic coil based on magnetic field analysis using the finite element method (FEM) and optimized dimensions. The result was an electromagnet having an maximum force of 60N and an electric current of 0.3A. Using this electromagnet, we developed a motor having a maximum torque of 0.67N × m, a maximum rotation of 4.3rpm, and a minimum resolut

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14

Leliuk, Mykola, and Victoriia Lytvynenko. "Medium voltage vacuum circuit breaker with per phase electromagnetic actuator." Bulletin of NTU "KhPI". Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and Practice, no. 1 (5) (May 28, 2021): 21–25. http://dx.doi.org/10.20998/2079-3944.2021.1.04.

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In medium voltage vacuum circuit breakers, in order to achieve an even distribution of force along the entire length of the drive shaft, the drive mechanism is made per phase, that is, a separate electromagnet is installed under each pole. The analysis of designs and features of operation of vacuum circuit breakers with a per phase electromagnetic drive is carried out. Deficiencies in the designs of these drives have been identified. The design of a vacuum circuit breaker with a per phase electromagnetic drive and a kinematic diagram of the operation of a vacuum circuit breaker with a monostab

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15

Ren, Wang, Liujie Wu, Wei Zhang, et al. "Design and Parametric Analysis of the Constant Force Characteristics of the Electromagnet for Hydraulic Valves." Processes 12, no. 12 (2024): 2632. http://dx.doi.org/10.3390/pr12122632.

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The electromagnet is the most used driving device for hydraulic valves; especially the proportional electromagnet with constant force characteristics is the basis for the excellent control performance of hydraulic valves. However, the constant force characteristics of the proportional electromagnet are related to many parameters and are difficult to obtain. In view of the above problems, this paper designs a proportional electromagnet for driving hydraulic valves with the goal of constant force characteristics, with the minimum variance of the output electromagnetic force in the working range

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16

Yao, Kexin. "Defects and Correction Theories of Electromagnetics." Applied Physics Research 8, no. 4 (2016): 154. http://dx.doi.org/10.5539/apr.v8n4p154.

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<p class="1Body">Experiments show that, there is the electrostatic field around the permanent magnet; since the electromagnetics can not explain this phenomenon, it can be concluded that there are some defects in electromagnetics. This paper makes an analysis of the defects of electromagnetics from fourteen aspects. It is noted that, the basic defect of electromagnetics is that there is no explanation of any inherent causes and physical processes of electromagnetic induction, displacement current, Lorentz force and other surface phenomena. Moreover, it may also lead us to make incorrect

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17

Emel'yanov, Ryurik, Aleksandr Danilov, and Dmitry Zhelonin. "ANALYSIS OF MAGNETIC FLUX DISTRIBUTION OF ELECTRIC MACHINES AND TWO-DIMENSIONAL MODELING IN COMSOL MULTIPHYSICS 6.2." Transport engineering 2025, no. 6 (2025): 9–14. https://doi.org/10.30987/2782-5957-2025-6-9-14.

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The paper deals with the use of electromagnets in the field of mechanical engineering, as well as the example of a rotor and stator with poles of electromagnetic coils. The possibility of redirection and shielding of electromagnetic fluxes is analyzed, and the description of electric and magnetic fields arising around any conductor with electric current, which are an integral component of almost all electrical machines, is given. It is shown that there are no natural materials that have zero magnetic permeability, that is, they do not completely pass through a magnetic field. The results of sh

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18

Fiapshev, A. G., M. M. Khamokov, O. Kh Kilchukova, and K. S. Rozumatova. "SELECTION OF THE OPTIMAL REACTIVE FORCE TO ACHIEVE THE MAXIMUM SPEED OF THE ELECTROMAGNET." Izvestiya of Kabardino-Balkarian State Agrarian University named after V.M. Kokov, no. 1(35) (2022): 128–36. http://dx.doi.org/10.55196/2411-3492-2022-1-35-128-136.

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Based on the analysis of switching devices and various electrical installations, the article shows that their main element is a high-speed electromagnetic device that performs the functions of a reacting organ and a drive. Both a polarized and a neutral electromagnet can be used as such a device. So far, polarized electromagnets have been most widely used as the fastest ones. However, there are a number of designs of neutral type electromagnets that can replace polarized electromagnets, in particular in electric locomotive circuit breakers. An analysis of the state of the problem showed that t

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19

Torii, Akihiro, Yuta Mitsuyoshi, Suguru Mototani, and Kae Doki. "Orientation Compensation of an Inchworm Stage with Optical Navigation." International Journal of Automation Technology 12, no. 5 (2018): 784–90. http://dx.doi.org/10.20965/ijat.2018.p0784.

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The orientation compensation of a three-degrees-of-freedom inchworm stage with optical navigation is described. As the stage does not use any guide or preload, a closed loop feedback control system is employed to retain the accurate orientation of the stage. The stage consists of piezoelectric actuators (piezos) for thrusting and electromagnets for positioning. A non-excited electromagnet is moved by the deformation of piezos, and excited electromagnets retain their positions. However, a weak electromagnetic force prevents the stage from retaining its accurate position. In addition, a friction

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20

Kramarov, Andrey, Denis Batishchev, Irina Bolshenko, and Andrey Gummel. "Research of the Influence of a Ferromagnetic Shunt on the Characteristics of the Electromagnetic Actuator of a Low-Voltage Contactor." Известия высших учебных заведений. Электромеханика 64, no. 2 (2021): 44–49. http://dx.doi.org/10.17213/0136-3360-2021-2-44-49.

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The article presents the results of a research of the influence of a ferromagnetic shunt (FMS) on the static and dynamic characteristics of the control electromagnet of the KTP 6000 series contactor by means of computer numerical simulation in the ANSYS Electromagnetic Suite software package. A computer numerical model of an electromagnetic actuator with FMS is proposed and verified, the influence of the geometrical dimensions of the shunt on the static and dynamic characteristics of the electromagnetic actuator of a low-voltage DC contactor is investigated. Recommendations are given for the s

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Swarali, Barpande. "3 Key Principles of Electromagnetism and Electromagnetic Induction. SEPTEMBER 2024." ENTECH 2, no. 9 (2024): 18–24. https://doi.org/10.5281/zenodo.14416774.

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<strong>Electromagnetism</strong> and electromagnetic induction shape the world around us. These principles power technologies like electric vehicles, cellular phones, and spacecraft. Electromagnetic theory forms the backbone of modern physics. Data in ebook gadgets and phones rely on electromagnetic formats for storage. The significance of electromagnetism extends to everyday life. Three key principles guide these phenomena: Faraday’s Law, Lenz’s Law, and Magnetic Flux. Each principle plays a vital role in the functionality of numerous devices. Understanding these p

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Yurtkuran, Alkin. "An Improved Electromagnetic Field Optimization for the Global Optimization Problems." Computational Intelligence and Neuroscience 2019 (May 23, 2019): 1–20. http://dx.doi.org/10.1155/2019/6759106.

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Electromagnetic field optimization (EFO) is a relatively new physics-inspired population-based metaheuristic algorithm, which simulates the behavior of electromagnets with different polarities and takes advantage of a nature-inspired ratio, known as the golden ratio. In EFO, the population consists of electromagnetic particles made of electromagnets corresponding to variables of an optimization problem and is divided into three fields: positive, negative, and neutral. In each iteration, a new electromagnetic particle is generated based on the attraction-repulsion forces among these electromagn

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Jones, Preston, and Douglas Singleton. "Interaction between gravitational radiation and electromagnetic radiation." International Journal of Modern Physics D 28, no. 06 (2019): 1930010. http://dx.doi.org/10.1142/s0218271819300106.

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In this review paper, we investigate the connection between gravity and electromagnetism from Faraday to the present day. The particular focus is on the connection between gravitational and electromagnetic radiation. We discuss electromagnetic radiation produced when a gravitational wave passes through a magnetic field. We then discuss the interaction of electromagnetic radiation with gravitational waves via Feynman diagrams of the process [Formula: see text]. Finally, we review recent work on the vacuum production of counterpart electromagnetic radiation by gravitational waves.

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Yuan, Duan Lei, Hai Yan Wang, Zhi Hao Zhu, and Hua Jun Dong. "Design of Electromagnetic Mechanism with Finite Element Method." Applied Mechanics and Materials 380-384 (August 2013): 3226–29. http://dx.doi.org/10.4028/www.scientific.net/amm.380-384.3226.

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A closing electromagnetic mechanism for rail transit direct-current circuit breaker is designed. But it is found that the temperature is too high when the mechanism kept closing for a long time because of the coils high power. Based on the theory of electromagnetic field and electromagnet design, the distribution of magnetic field and the electromagnetic force of electromagnetic mechanism are simulated by finite element analysis software ANSYS. An improved mechanism is manufactured according to the simulation results. The experiments show that the improved scheme can effectively reduce the ele

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Hena, Hasna, Jenita Jahangir, and Md Showkat Ali. "Electromagnetics in Terms of Differential Forms." Dhaka University Journal of Science 67, no. 1 (2019): 1–4. http://dx.doi.org/10.3329/dujs.v67i1.54564.

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The calculus of differential forms has been applied to electromagnetic field theory in several papers and texts, some of which are cited in the references. Differential forms are underused in applied electromagnetic research. Differential forms represent unique visual appliance with graphical apprehension of electromagnetic fields. We study the calculus of differential forms and other fundamental principle of electromagnetic field theory. We hope to show in this paper that differential forms make Maxwell’s laws and some of their basic applications more intuitive and are a natural and powerful

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Liu, Yaozong, Wenxi Deng, and Pu Gong. "Dynamics of the Bogie of Maglev Train with Distributed Magnetic Forces." Shock and Vibration 2015 (2015): 1–12. http://dx.doi.org/10.1155/2015/896410.

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A dynamic model of the bogie of maglev train with distributed magnetic forces and four identical levitating controllers is formulated. The vertical, pitching, and rolling degree of freedom of the electromagnet modules and their coupling are considered. The frequency responses of the bogie to track irregularity are investigated with numerical simulation. The results tell us that there are resonances related to the first electromagnetic suspension whose frequencies are determined by the control parameters. A comparative analysis has been carried out between the models with distributed or concent

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Cao, Jian Nan, Jun Liu, and Yong Yang. "Impact Characteristics Study on Electromagnet Magnetic Isolation Ring to Electromagnetic Force." Applied Mechanics and Materials 201-202 (October 2012): 635–39. http://dx.doi.org/10.4028/www.scientific.net/amm.201-202.635.

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This paper makes simulation analysis on an electromagnetic valve product based on ANSYS software by changing the angle, position, length and permeability of electromagnet magnetic isolation ring, and get different electromagnetic force curves. According to electromagnetic force curves, it can verify the importance of magnetic isolation ring’s existence. Comparing simulation results curve with measured electromagnetic force curve, it can find that Attenuation trend of two curves are consistent, which can prove the reliability of simulation by ANSYS software. This study makes a series of electro

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Wang, Hong Ming, Chang Chen Qu, Xiao Jian Fan, and Gui Rong Li. "Simulation Study on the Force of Particles Migrating in Molten Metal under High-Frequency Magnetic Field." Advanced Materials Research 1095 (March 2015): 851–54. http://dx.doi.org/10.4028/www.scientific.net/amr.1095.851.

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According to the basic principles of electromagnetism, the magnetic flux density on the surface of the metal melt was calculated by numerical simulation method. The relational expression of the electromagnetic body force and the magnetic flux density was deduced. The results show that the electromagnetic body force in the melt is directly proportional to the square of the magnetic induction intensity. Increasing the electric current, the electromagnetic body force in the melt can be increased effectively. Increasing the frequency, the particular electromagnetic body force within the melt can b

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Zabchev, Angel, and Romeo Alexandrov. "CURRENT CONTROL OF THE ELECTROMAGNETIC SEPARATOR." Sustainable Extraction and Processing of Raw Materials 4, no. 4 (2023): 76–81. http://dx.doi.org/10.58903/u17190835.

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Based on a patented electromagnetic separator with six electromagnets (EM), a supply voltage and thyristor rectifier are proposed for generating current through the electromagnets. The currents in the six electromagnets create a travelling magnetic field that transports the magnetic material. The control pulses and the harmonic composition of the current are analytically determined.

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Karambe, Mohan, Ashutosh Nimsarkar, Kunal Likhar, et al. "Fabrication of Automatic Electromagnetic Braking System for 4 Wheels." Journal of Advances in Electrical Devices 8, no. 1 (2023): 11–16. http://dx.doi.org/10.46610/jaed.2023.v08i01.001.

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An electromagnetic brake is a new and revolutionary concept. They have no friction at all. The brakes that operate on both electric and magnetic power are known as electromagnetic brakes. The power required to brake in an electromagnetic braking system is manually applied, but magnetic force is used to engage the brake. A new type of braking system utilised in both light and heavy motor vehicles is the electromagnetic braking system. The components of this system combine electromechanical ideas. Nowadays, accidents happen more frequently due to inefficient braking systems. The electromagnetic

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Doria, Renato, J. Chauca, and I. Soares. "Four Bosons Electromagnetism." JOURNAL OF ADVANCES IN PHYSICS 10, no. 1 (2015): 2610–40. http://dx.doi.org/10.24297/jap.v10i1.1341.

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Based on light invariance and electric conservation a four bosons electromagnetismÂ is proposed. It enlarges the electric charge conservation beyond displacement currentÂ and Dirac charge to a new physical situation where the electromagnetic phenomena isÂ mediated by the usual photon plus a massive photon and two additional charged vectorÂ bosons.Considering the enlarged abelian gauge symmetry U(1) SO(2) transforming under aÂ same gauge parameter a non-linear electromagnetism involving four bosons is introduced.Â It deploys a Lagrangian containing massless, massive and charged elds with three

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Jacob Abisam J and Siddharthan A. "Tuning of PID controller using genetic algorithm for an electromagnetic semi-active suspension system." international journal of engineering technology and management sciences 7, no. 4 (2023): 257–60. http://dx.doi.org/10.46647/ijetms.2023.v07i04.035.

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Electromagnetic suspension of vehicles has advantage of improved ride comfort and drivability. Electromagnetic levitation has been in use in Maglev trains for smoother transportation. However, application of electromagnetic suspension system was limited by its cost and weight. This paper focuses study on use of an electromagnet and permanent magnet hybrid magnet setup and compares the control method to stabilize the suspension system by genetic algorithm optimization, auto tuning technique and fuzzy logic controller for tuning the Proportional-Integral-Derivative (PID) controller for making th

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Pang, Xudong, Qun Chen, Beibei Cao, and Shouzheng Zhu. "Loss Analysis of the Electromagnetic Metamaterial Applied to Antenna Size Reductions." Journal of Physics: Conference Series 2755, no. 1 (2024): 012002. http://dx.doi.org/10.1088/1742-6596/2755/1/012002.

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Abstract The research of transformation electromagnetics uses spatial coordinate transformation method to transform Maxwell’s equations for the propagations of electromagnetic waves in space, thereby achieving the goal of designing the path of electromagnetic waves, which eventually leads to a more complex tensor design of its constitutive parameters of metamaterials. This demand for artificial design of material parameters has been combined with the rapid development of micro-scale, molecular-scale, and atomic-scale experimental engineering techniques in recent years, enabling metamaterials t

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Fei, Bixiao. "Analytical Solution of Electromagnetic Force Lines in Rectangular Wave Guides for Transverse Electric Waves." Applied and Computational Engineering 105, no. 1 (2024): 110–16. https://doi.org/10.54254/2755-2721/2024.tj17855.

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The analytical solution of the electromagnetic field lines was derived, providing a foundation for generalizing conclusions and forming a coherent set of equations to describe the dynamics of electromagnetic waves. By applying Maxwell's equations, this paper analyzed the rectangular waveguide model, focusing on the guiding effect of the passive region on the propagation of electromagnetic waves. Additionally, the Helmholtz equation was used to describe the behavior of electromagnetic fields within the passive guided wave system. Through the analytical solution of the field lines, the distribut

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Ivanov, Georgi, Valentin Mateev, and Iliana Marinova. "Dynamic characteristics of electromagnetic contactor with HTS-2G coil in liquid nitrogen." E3S Web of Conferences 551 (2024): 03004. http://dx.doi.org/10.1051/e3sconf/202455103004.

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In this paper is presented experimental investigation of dynamic characteristics of electromagnetic contactor with Hightemperature superconductive (HTS) coil in liquid nitrogen. Transient characteristics of armature dynamics and current during electromagnet switching are presented and analysed. HTS coil could provide reduced electric energy consumption in long term operation by active coil resistance reduction, improving this way electromagnetic contactor energy efficiency. Estimation of electromagnetic contactor with HTS-2G coil energy consumption is also presented.

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36

Chi, Yao Dan, Hai Long Gu, Yin Han Gao, Xiao Tian Yang, and Sheng Qian Zhang. "Survey to Automobile Electromagnetic Compatibility Simulation Software." Applied Mechanics and Materials 220-223 (November 2012): 2968–72. http://dx.doi.org/10.4028/www.scientific.net/amm.220-223.2968.

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With the rapid developments of computer technology and computing electromagnetism, it is possible to simulate the electromagnetic compatibility of automobiles. At the beginning of the design, electromagnetic compatibility simulation analysis of automobiles can not only shorten the research cycle, but also reduce the cost. In this paper, we summarized the current commercial electromagnetic compatibility simulation analysis software, analyzed the features and applied algorithms of each software, and gave the simulation examples of Ansoft HFSS and FEKO.

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37

Xu, Jiang Tao. "Improve Dynamic Performance on High Speed by Application of Electromagnetic Valve Actuation." Applied Mechanics and Materials 462-463 (November 2013): 826–29. http://dx.doi.org/10.4028/www.scientific.net/amm.462-463.826.

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This paper base on electromagnetism valve technology, the intake valves of a car driven by electromagnetic valve, by cooperating average torque of engine with prototype by 6000 RPM engine, then found that the average torque can be increased by 5.679% after changing the intake valves with electromagnetic valves. The increasing torque contributed to increasing the air intake in the opening stage and off stage improved, and provided a theoretical basis for the promotion of the electromagnetic variable valve in automotive.

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38

Zong, Shiqi, Chaoqun Jiao, Jiangong Zhang, and Zheyuan Gan. "Research on electromagnetism scattered from electricity power supply towers based on orthogonal test designs." Journal of Physics: Conference Series 2797, no. 1 (2024): 012017. http://dx.doi.org/10.1088/1742-6596/2797/1/012017.

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Abstract For the protection of transmission towers against electromagnetism interference to peripheral radio radar stations, this paper designs orthogonal tests to investigate the electromagnetism scattered efficiency of UHV transmission towers. The towers were mathematically modeled, and the influence of three main factors, tower spacing, frequency, and number of transmitting pylons, on the electromagnetism scattered is investigated. Each factor corresponds to three levels of study and nine sets of orthogonal tests were designed to greatly simplify the number of simulations. Three-factor anal

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39

Guo, Qinmeng, Shanshan Yong, and Xin’an Wang. "Statistical Analysis of the Relationship between AETA Electromagnetic Anomalies and Local Earthquakes." Entropy 23, no. 4 (2021): 411. http://dx.doi.org/10.3390/e23040411.

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Abstract (sommario):

To verify the relationship between AETA (Acoustic and Electromagnetics to Artificial Intelligence (AI)) electromagnetic anomalies and local earthquakes, we have performed statistical studies on the electromagnetic data observed at AETA station. To ensure the accuracy of statistical results, 20 AETA stations with few data missing and abundant local earthquake events were selected as research objects. A modified PCA method was used to obtain the sequence representing the signal anomaly. Statistical results of superposed epoch analysis have indicated that 80% of AETA stations have significant rel

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40

Gradoni, Gabriele, Johannes Russer, Mohd Hafiz Baharuddin, et al. "Stochastic electromagnetic field propagation— measurement and modelling." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 376, no. 2134 (2018): 20170455. http://dx.doi.org/10.1098/rsta.2017.0455.

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This paper reviews recent progress in the measurement and modelling of stochastic electromagnetic fields, focusing on propagation approaches based on Wigner functions and the method of moments technique. The respective propagation methods are exemplified by application to measurements of electromagnetic emissions from a stirred, cavity-backed aperture. We discuss early elements of statistical electromagnetics in Heaviside's papers, driven mainly by an analogy of electromagnetic wave propagation with heat transfer. These ideas include concepts of momentum and directionality in the realm of prop

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41

Peng, Chang, Li Qiu, Ke Shen Gong, and Ding Jun Wang. "Research on Workpiece Deformation in Electromagnetic Forming Process with Finite Element Method." Advanced Materials Research 989-994 (July 2014): 2702–4. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.2702.

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Electromagnetic forming is a kind of processing technology that use lorentz force to make rapid prototyping of metal workpiece, which can significantly improve the metal forming performance,and it is expected to become an emerging technology that alternative to traditional machining to process light alloy materials. Based on the understanding the basic structure of the electromagnetic coupling on the basis of physical process of electromagnetic forming, this article adopt ANSYS sequential coupling method to simulate the electromagnetic coupling process of electromagnetic structure, and analysi

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42

Syamsuar, Sayuti, Rizki Wibawaningrum, and Hariyanti Makarim. "Cara Kerja dan Penggunaan Motor Direct Current (DC)." Warta Penelitian Perhubungan 23, no. 5 (2019): 509. http://dx.doi.org/10.25104/warlit.v23i5.1108.

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Abstract (sommario):

The motor DC is an electromagnetic process on the mechanical and electrical work that the system will be changed the electrical energy as input to the mechanical energy as output response. The Flemming left hand rule to electromagnet field and the current directions have been indicated of the rotor rotation due the speed of marine vehicle. Ward Leonard Rectifier as generator excitation controls the power system on the submarine. We shown on this paper about mini model SOTO NG, BPPT and others example to known the application in the field.Keywords: motor DC, electromagnetism, Flemming, piston t

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43

Riga, Jeanne, and Rebecca Seviour. "Electromagnetic analogs of quantum mechanical tunneling." Journal of Applied Physics 132, no. 20 (2022): 200901. http://dx.doi.org/10.1063/5.0118308.

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Abstract (sommario):

In this paper, we introduce the theoretical framework underlying our proposed methodology of verification and validation (V&V) for quantum mechanical emission models using analogous macroscopic electromagnetic systems. We derive the correspondence between quantum mechanics and electromagnetism using the transfer matrix approach and describe the electromagnetic analog that will be used to anchor the atomistic quantum tunneling simulations. Finally, we illustrate this correspondence by comparing the quantum mechanical and electromagnetic systems for some simple, analytically soluble examples

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44

Sitzia, A. "An Electromagnetics Cad Exercise for Undergraduates." International Journal of Electrical Engineering & Education 29, no. 4 (1992): 291–96. http://dx.doi.org/10.1177/002072099202900401.

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An electromagnetics CAD exercise for undergraduates This article presents a new electromagnetics CAD exercise for first-year undergraduates at UMIST, U.K. It introduces the use of finite-element software as a design tool for electromagnetic devices.

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45

Ruan, Guangzheng, Lijian Wu, Yaobing Wang, Bo Wang, and Runqi Han. "Micro- and Nanosatellite Sensorless Electromagnetic Docking Control Based on the High-Frequency Injection Method." Aerospace 10, no. 6 (2023): 547. http://dx.doi.org/10.3390/aerospace10060547.

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This paper proposes a sensorless electromagnetic docking method suitable for micro- and nanosatellites. Based on the circuit model of the electromagnetic docking device, an algorithm for calculating the distance between two satellites on the basis of the high-frequency injection (HFI) method has been developed. In the specific implementation, first, a high-frequency (HF) voltage is injected into one of the two electromagnets; second, the HF currents induced by both electromagnets are measured and their respective root-mean-squares (RMSs) are calculated; third, two RMSs are substituted into a s

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46

Gerasimenko, Anastasiia A., Can Peng, Hao Lu, et al. "Diamagnetic Screening in the Electromagnetic Turnout Switch for a High-Temperature Superconducting Maglev System." Sustainability 15, no. 20 (2023): 15076. http://dx.doi.org/10.3390/su152015076.

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Abstract (sommario):

Maglev systems represent a cutting-edge high-speed transport technology, and turnout switches play a critical role in the creation of a highly branched network. There are two common types of turnouts for high-temperature superconducting (HTS) Maglev systems: mechanical and electromagnetic. Due to the many advantages, an electromagnetic turnout is a better choice for a Maglev system than a mechanical one. However, there is a difference in the distribution of the magnetic field over the turnout area and the permanent magnetic track, which cannot meet the safety requirements of the Maglev system.

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47

Ahmed, Raheel, Yu Li Jun, Muhammad Fawad Azhar, and Naveed Ur Rehman Junejo. "Comprehensive Study and Review on Maglev Train System." Applied Mechanics and Materials 615 (August 2014): 347–51. http://dx.doi.org/10.4028/www.scientific.net/amm.615.347.

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Abstract (sommario):

Electromagnetic levitated systems commonly used in the field of people transportation, tool machines frictionless bearings and conveyor systems. In the case of high speed people transport vehicles, the electromagnetic levitation offers the advantage of a very silent motion and of a reduced maintenance of the rail. Magnetic levitated trains requires the guidance force needed to keep the vehicles on the track is obtained with the levitation electromagnets, Particular shapes of the rails and to a clever placement of the electromagnets with respect to the rails helpful and effective to achieve the

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48

Viktorov, V. A. "METHODOLOGY FOR CALCULATING ELECTROMAGNETIC FIELDS GENERATED BY AN AUTOMATED WORKPLACE OF AN OBJECT OF INFORMATIZATION." RADIO COMMUNICATION TECHNOLOGY, no. 46 (September 30, 2020): 30–44. http://dx.doi.org/10.33286/2075-8693-2020-46-30-44.

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Abstract (sommario):

A methodology for calculating electromagnetic fields generated by an automated workstation of an object of informatization has been developed. Using the presented methodology, it becomes possible to form a complete scheme of electromagnetic radia-tion of the space under study. Based on the output of the calculation of electromagnet-ic fields, the permissible time spent by the operator at each point of his workplace is calculated. For the first time, electromagnetic radiation sources are modeled by a com-bination of elementary electric dipoles powered by various harmonic components. The reliabi

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49

Vasin, Konstantin, Yerik Yedygenov, Nakhypbek Aldiyarov, and Vladimir Voronin. "Development of an electronic control module and research of dynamic and power characteristics of an electromagnetic hammer for destruction of boulders." E3S Web of Conferences 56 (2018): 01024. http://dx.doi.org/10.1051/e3sconf/20185601024.

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Abstract (sommario):

The developed electronic control module of an electromagnetic hammer for destruction of boulders is described and studied in the article. The possibility of using an inductive slot sensor for both controlling electromagnets and for measuring dynamic and energy characteristics is demonstrated. During the research of the possibility of controlling the impact energy of an electromagnetic hammer, the advantage of the method of adjusting the height of the lifting of the armature in relation to the method for controlling the magnitude of the electric current of the electromagnets is clarified.

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50

Guo, Yuekang, Zhihao Qiao, and Xingyu Ren. "Electromagnetic Acceleration: Principles, Applications, and Challenges." Highlights in Science, Engineering and Technology 88 (March 29, 2024): 1314–19. http://dx.doi.org/10.54097/72fjdp79.

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Abstract (sommario):

This article provides an overview of electromagnetic acceleration, which involves using a magnetic field to accelerate charged particles, such as ions or electrons, and is widely used in various fields of science and technology. The article describes the principles of electromagnetism and its application in scientific research, transportation, military, and aerospace. It discusses the potential of electromagnetic acceleration to revolutionize high-speed rail travel and space exploration, but also highlights the engineering challenges, particularly regarding the high voltages and currents requi

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