Results 21 to 30 of about 138 (125)

Development of the Reduced-Scale Vehicle Model for the Dynamic Characteristic Analysis of the Hyperloop

Energies, 2021
This study addresses the Hyperloop characterized by a capsule-type vehicle, superconducting electrodynamic suspension (SC-EDS) levitation, and driving in a near-vacuum tube.
Jinho Lee, Wonhee You, Jungyoul Lim, Kwan-Sup Lee, Jae-Yong Lim   +4 more
doaj   +1 more source

Equivalent model of the side wall electrodynamic suspension system

Electrical Engineering in Japan, 1997
The side wall electrodynamic suspension (EDS) system has the advantage of not requiring gap control, and the magnetic drag is smaller than for the repulsion arrangement. This levitation system is applied in the JR magnetically levitated (Maglev) transportation system.
Ohashi, Shunsuke, Ohsaki, Hiroyuki, Masada, Eisuke   +2 more
openaire   +2 more sources

Modeling, Design and Analysis of a Electrodynamic Levitation System by Considering the Skin Effect [PDF]

Journal of Intelligent Procedures in Electrical Technology, 2016
In this paper, lift and drag forces of permanent-magnet electrodynamic suspension (PMEDS) System have been studied by considering the skin effect. Electrodynamic suspension is based on repulsive force between two magnetic fields with the same polarity ...
Mohammad Rajabi Sabadani, Abbas Najjar Khadabakhsh, Ahmad Darabi   +2 more
doaj  

Active and Regenerative Control of an Electrodynamic-Type Suspension.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1996
An active vibration damper and an isolator are capable of reducing vibration remarkably and adaptively. One of their disadvantages is that they require a large amount of energy. Since vibration is a type of energy, a question arises as to how we can utilize this energy.
HARADA, Hideyuki, OKADA, Yohji, SUZUKI, Kohei   +2 more
openaire   +3 more sources

Scaling laws for electrodynamic suspension in high‐speedtransportation

IET Electric Power Applications, 2017
Electrodynamic suspension (EDS) relies on the repulsive force created by eddy currents in a stationary conductive body (rail) and a magnetic field generated by an excitation system on a moving vehicle (pod). The excitation system in this paper consists of permanent magnets in a Hallbach array. EDS generates lift forces that levitate the pod reliably at
Michael Flankl, Tobias Wellerdieck, Arda Tüysüz, Johann Walter Kolar   +3 more
openaire   +1 more source

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source

Levitation‒guidance‒propulsion integrated design for maglev trains based on oblique ring Halbach permanent magnet wheels

机车电传动, 2023
In this paper, a levitation, guidance and propulsion integrated design was proposed for maglev trains on the principle of permanent magnet electrodynamic suspension, in which the Halbach ring permanent magnet wheels and conductor plates were tilted after
LIU Xin, DENG Zigang, LIANG Le, LI Kaiwen, LU Hao, ZHENG Jun   +5 more
doaj  

Operando Tracking of Oxygen‐Vacancy Dynamics and Negative Capacitance in Ca‐Doped BiFeO3

Advanced Functional Materials, EarlyView.
Operando electrochemical impedance spectroscopy, combined with electrocoloration, enables a direct correlation between real‐space ionic redistribution and the corresponding frequency‐domain electrical response. In lateral Ca‐doped BiFeO3 devices, time‐resolved impedance snapshots capture the evolution from bulk‐dominated mixed conduction to an ...
Jeonghun Suh, Heung‐Sik Park, Jong‐Sook Lee, Chan‐Ho Yang   +3 more
wiley   +1 more source

MODELLING AND ANALYSIS OF PERMANENT MAGNET ELECTRODYNAMIC SUSPENSION SYSTEMS [PDF]

Progress In Electromagnetics Research M, 2014
In this paper, an analytical model of permanent magnet electrodynamic suspension systems (PEDSs) is proposed. Horizontal and vertical magnetic flelds of a permanent magnet (PM) are efiectively approximated by sinusoidal functions. By this means, closed form solutions are obtained for lift and drag forces of PEDSs for the flrst time.
Hossein Rezaei, Sadegh Vaez-Zadeh
openaire   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source