Magnetic Levitation Research Papers - Academia.edu (original) (raw)

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- Engineering, Materials Science, Magnetic Materials, Stress
- by Márcio Bessa
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- Materials Engineering, Condensed Matter Physics, Power Electronics, Applied
- by thomas nussbaumer
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- Magnetic Levitation, Torque, Harmonics, Air Gaps
- by Takashi Yoneyama
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- Engineering, Education, Control Engineering, Transportation

A brief overview of the Hyperloop using hover engines vs traditional maglev systems.

- by Greg Henderson, AIA, NCARB
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- Transportation, Magnetism, Magnetic Levitation, Hovering
- by Shobhit Verma
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- Engineering, Technology, Semiconductor Manufacturing, Motion control

This paper reports high-precision motion control at the target position and the offline compensation of the straightness error occurring during the motion of the magnetically levitated stage supported by the linear magnetic bearing. The linear magnetic bearing is composed of electromagnets and sensors in the same module to enable easy maintenance and to reduce the machining error, and the conventional

- by Ouiserg Kim
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- Engineering, Magnetic Bearings, Motion control, Sensors
- by Sven Hol
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- Engineering, Technology, Magnetic Bearings, Magnetic Levitation
- by Richard Magdalena Stephan and +1
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- Engineering, Magnetic Levitation, Physical sciences, Predictive models
- by Jacek Gieras
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- Engineering, Harmonic Analysis, Magnetic field, Electrodynamics

In the previous paper [Lomaev, Krivilyov, Fransaer, Magnetohydrodynamics, 2016], exact analytical expressions for the Lorentz force density and Joule heat power induced by an external alternating magnetic field inside an electromagnetically levitated drop have been derived. This yields a close-form analytical solution of the conjugated hydrodynamic-thermal problem for a spherical liquid drop in a gas atmosphere. In this paper, the developed method has been used to analyze structural transitions in fluid flow patterns inside a levitated Fe-Co droplet tested recently in the framework of the PARSEC space experiment onboard the International Space Station (ISS). The convection level is calculated based on the positioning and heating currents in the coil and an optimum flow regime is predicted.

- by Stepan Lomaev
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- Magnetic Levitation, Analytical Solution, Joule heating, Lorentz Force
- by Nicholas Greatrex and +1
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- Design, Biomedical Engineering, Biomagnetism, Conception
- by L. Savoldi
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- Magnetic Levitation, Iterative Design, Pressure Drop, Design Criteria
- by Yevgeniy Postrekhin
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- Engineering, Magnetic Bearings, Magnetic field, Scientific Instruments
- by Rafael Canetti
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- Electrical Engineering, Automatic Control, Magnetic field, Magnetic Levitation
- by Rupert Young
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- International Cooperation, Space Technology, Space Science, Propulsion
- by Hannes Bleuler
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- Engineering, Control Theory, Energy Conservation, Technology Assessment

Magnetic levitation or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Magnetic pressure is the only effect acting on object overcoming gravitational and any other acceleration effect. The principal advantage of a magnetic levitation windmill over a conventional windmill is that mechanical friction is completely eliminated due to floating of rotors. That makes the rotation possible in very low wind speeds. The goal of this project is to build the vertical axis wind turbine to generate electricity by using wind energy. This type of vertical axis wind turbine will generate electricity without using generator or alternator, but by the application of magnetic levitation concept. This wind turbine is designed to withstand all the forces by wind and keeps rotating even at low wind force. This type of vertical axis wind turbines has three wings. The wings are designed to accept wind from any directions.

- by Bipin Khadka
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- Materials Science, Wind Energy, Power Generation, Magnetic Levitation
- by Hiroyuki Ohsaki
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- Engineering, Materials Science, Finite element method, Propulsion

Static levitation is a form of marvel with metaphysical implications whose long history has not previously been charted. First, Pliny the Elder reports an architect's plan to suspend an iron statue using magnetism, and the later compiler Ampelius mentions a similar-sounding wonder in Syria. When the Serapeum at Alexandria was destroyed, and for many centuries afterwards, chroniclers wrote that an iron Helios had hung magnetically inside. In the Middle Ages, reports of such false miracles multiplied, appearing in Muslim accounts of Christian and Hindu idolatry, as well as Christian descriptions of the tomb of Muhammad. A Christian levitation miracle involving saints' relics also emerged. Yet magnetic suspension could be represented as miraculous in itself, representing lost higher knowledge, as in the latest and easternmost tradition concerning Konark's ruined temple. The levitating monument, first found in classical antiquity, has undergone many cultural and epistemological changes in its long and varied history.

- by Dunstan Lowe
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- Iconoclasm, Science Fiction, Augustine, Relics (Religion)
- by Cai J. Heath
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- Transportation Engineering, Physics, Sustainable Transportation, Public Transport
- by Panos S Shiakolas
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- Engineering, Education, System Identification, Digital Control

— The conventional modes of transportation of people consists of four unique types and that are rail, road, water, and air. These modes of transport tend to be either relatively slow, expensive or a combination of both. Hyperloop is a new mode of transport that seeks to change this pattern by being both fast and inexpensive for people and goods. The idea of Hyperloop is to travel at high speed in low pressure tube along with levitation. Due to presence of low pressure, the aerodynamic drag is very low thereby reducing the energy consumption.

- by Raul Valenzuela
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- Materials Science, Antennas, Magnetic Levitation, Filter circuits

ANOTHER PRACTICAL USE OF AETHERIC SCIENCE. WHICH HAS BEEN SUPPRESSED FOR LONG ENOUGH - EH?

REPLACES CARS, TRUCKS, TRAINS, PLANES, BOATS, SHIPS, ROADS, ETC. SOON AND QUICKLY

- by MIKE EMERY
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- Environmental Engineering, Transportation Engineering, Environmental Science, Physics
- by vigneshwaran d
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- Magnetic Levitation

The purpose of this report is to examine the newly developing field of magnetic levitation and its applications in transportation. The magnetic levitation train will be analyzed as well as what makes it the new evolving mode of transportation. The "maglev" train's predecessors will be briefly mentioned, as well as their drawbacks and how the maglev system attempts to remedy those problems.

- by Sriteja Sonikar
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- Electrical Engineering, Mechanical Engineering, Magnetic field, Magnetism

Padatnya aktivitas dalam era globalisasi menuntut manusia untuk bertindak secara efektif dan efisien. Oleh karena itu, ilmuwan-ilmuwan di seluruh dunia berlomba-lomba dalam menemukan teknologi baru yang semakin memudahkan manusia menjalankan aktivitasnya, salah satunya adalah pengembangan teknologi dalam bahan-bahan listrik. Mengingat listrik sudah menjadi bagian utama bagi kehidupan seluruh manusia di bumi, penemuan bahan-bahan listrik menjadi sorotan utama bagi produsen dan konsumen demi penggunaan listrik yang seefisen mungkin. Abad ke-19 merupakan terobosan baru dalam dunia kelistrikan. Pada saat itu, bahan superkonduktor ditemukan oleh Heike Kamerlingh Onnes, fisikawan asal Jerman. Bahan superkonduktor adalah bahan listrik yang memiliki sifat hambatan sama dengan nol pada suhu tertentu sehingga daya listrik yang diperoleh utuh, tidak ada rugi sedikitpun. Prospek bahan superkonduktor yang cerah menjadikan para ilmuwan gencar melakukan penelitian dan pengembangan. Hingga pada abad ke-20, penerapan bahan superkonduktor dibuktikan melalui peluncuran Kereta Maglev (Magnet Levitation) yang memiliki kecepatan super tinggi oleh Negara-negara maju seperti Jepang, Cina, Jerman, Amerika Serikat dan Inggris. Kecepatan kereta ini menjadikan perjalanan lebih efektif bagi masyarakat penggunanya, Bahan superkonduktor berperan sebagai penggerak Kereta Maglev dan merupakan poin penting dalam pembuatan Kereta Maglev.

- by Fitria Septiani
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- Electrical Engineering, Transportation, Magnetic Levitation, Superconductors
- by John Loch
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- Engineering, Computer Science, Artificial Intelligence, Control Systems
- by Sri Vikram Palagummi
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- Magnetic Levitation, Vibration Energy Harvesting, Diamagnetism
- by Editor IJRET
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- Electrical Engineering, Renewable Energy, Wind Energy, Power Generation
- by T. Nussbaumer
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- Engineering, Magnetic Levitation, Force, Torque
- by Vedat Karsli
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- Control Systems Engineering, Control Systems, Fuzzy Control, Magnetic Levitation

This research investigates the acceptability of the Artificial Neural Networks (ANN) over the PID Controller for the control of the Magnetic Levitation System (MLS). In the field of advanced control systems, this system identifies as a feedback-controlled, single input-single output (SISO) system. This SISO system used a PID controller for vertical trajectory controlling of a metal sphere in airspace by using an electromagnetic force that directed to upward. The vertical position of the metal sphere controlled according to the applied magnetic force generated by a powerful electromagnet and the electromagnetic force controlled by varying the supply voltage. To control this nonlinear system, we develop a multilayer artificial neural network by using Matlab software and integrate that with the physical magnetic levitation model. According to specific initial conditions, the actual responses of the magnetic levitation system with artificial neural network compares the desire response of the metal sphere. The ability of control this nonlinear system by using neural networks validate by comparing results obtained by the PID controller and artificial neural network.

- by Hapuarachchige Don Nelaka Shayamal Priyankara and +1
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- Artificial Intelligence, Nonlinear Control, Artificial Neural Networks, Magnetic Levitation

- by Timo Holopainen and +1
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- Finite Element Methods, Magnetic Bearings, Magnetic field, Finite Element Analysis
- by siavash sadeghi
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- Harmonic Analysis, Computational Modeling, Vibrations, Atmospheric Modeling
- by Rastislav Jančuš
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- Electrical Engineering, Mathematics, Physics, Mathematics Education

The aim of this paper is to employ fractional order proportional integral derivative (FO-PID) controller and integer order PID controller to control the position of the levitated object in a magnetic levitation system (MLS), which is inherently nonlinear and unstable system. The proposal is to deploy discrete optimal pole-zero approximation method for realization of digital fractional order controller. An approach of phase shaping by slope cancellation of asymptotic phase plots for zeros and poles within given bandwidth is explored. The controller parameters are tuned using dynamic particle swarm optimization (dPSO) technique. Effectiveness of the proposed control scheme is verified by simulation and experimental results. The performance of realized digital FO-PID controller has been compared with that of the integer order PID controllers. It is observed that effort required in fractional order control is smaller as compared with its integer counterpart for obtaining the same system performance.

- by IEEE/CAA J. Autom. Sinica
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- Digital Control, Magnetic Levitation, Discretization, Position Control
- by Pratap Khanwilkar
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- Cardiology, Magnetic Bearings, Automatic Control, Flow Control
- by Freddy Naranjo
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- Nonlinear dynamics, Nonlinear Control, Magnetic Levitation, Sliding mode control

This paper presents the analyses of thrust and normal forces of linear induction motor (LIM) segments which are implemented in a rotating ring system. To obtain magnetic levitation in a cost effective and sustainable way, decoupled control of thrust and normal forces is required. This study includes the design of a static test setup from which the measurement results are compared and verified with the derived analytical methods and finite element simulations. The comparison shows significant correlation of the thrust and normal forces as function of the slip frequency.

- by John Compter
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- Applied Physics, Magnetic Levitation, Cost effectiveness, Finite element simulation
- by Juan Raygoza
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- Engineering, Technology, Reconfigurable Computing, Magnetic Levitation

Magnetic Levitation has been a keen area of
research, especially in the field of automotive where low
losses due to friction and low energy consumption are
important considerations. This paper offers the theoretical
and experimental idea of the magnetic force control in the
magnetic levitation system using the bond graph modeling
approach considering the nonlinearities. The corresponding
levitation apparatus comprises of an electromagnet, a
ferroelectric material base, a steel ball and position sensors.
The force generated by the electromagnet causes the
levitation action over the ball by balancing the gravitational
force exerted on the ball. The present work describes the
linear and nonlinear model using signal flow graph a nd bond
graph approach. Transfer function of the setup is obtained
using signal flow graph and correspondingly the balancing
action of the ball at its levitating position is performed using
a PID controller. Lastly the overall system stability is
validated using root locus approach.

- by Mario Pinheiro
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- Engineering, Magnetohydrodynamics, Quantum Electrodynamics, Mathematical Sciences