Results 21 to 30 of about 177 (118)

Three-Dimensional Modelling and Validation for the Ultra-High-Speed EDS Rocket Sled with PM Halbach Array

Actuators
The ultra-high-speed rocket sled plays an important role in the ground test by simulating altitude flight. Rocket sleds can only be lifted for a short time with thermally uninsulated superconductors moving among an eddy-current-induced copper array.
Yongpan Hu, Baojun Chen, Guobin Lin, Zhiqiang Wang   +3 more
doaj   +2 more sources

A Novel Overlapped Compensation Structure and Its Effectiveness Verification for Expansion Joints in Plate-Type PMEDS Vehicles

Actuators
In the plate-type permanent magnet electrodynamic suspension (PMEDS) vehicle, expansion joints in discrete conductive plates trigger the eddy current truncation effect, thereby causing an attenuation in the levitation force.
Shuqing Zhang, Siyi Wu, Hongfu Shi, Zhengyan Li, Zigang Deng   +4 more
doaj   +2 more sources

Dual-Energy Integration in Photoresponsive Micro/Nanomotors: From Strategic Design to Biomedical Applications. [PDF]

Small
Photoresponsive micro/nanomotors combined with external stimuli such as magnetic, acoustic, and electrical fields enhance functionality and control in self‐propelled systems. This review presents an overview of hybrid micro/nanomotors, covering material design, fabrication methods, and biomedical applications.
Chen Y, Gonçalves JM, Ferrer Campos R, Villa K.   +3 more
europepmc   +2 more sources

Impact of the Magnet Span on the Forces of Electrodynamic Suspensions with an Alternate Permanent Magnet Arrangement

2022 25th International Conference on Electrical Machines and Systems (ICEMS), 2022
Permanent magnet (PM) electrodynamic suspensions offer a simple and robust solution to assure the magnetic levitation of high-speed transportation systems. Halbach arrays (HAs), which are the PM magnetic field sources with the best performance, are more complex to implement than alternate poles configurations.
Beauloye, Louis, Dehez, Bruno, 2022 25th International Conference on Electrical Machines and Systems (ICEMS)   +2 more
openaire   +2 more sources

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

Pole Pitch Optimization of Permanent Magnet Electrodynamic Suspensions in High-Speed Transportation Systems

2022 IEEE Vehicle Power and Propulsion Conference (VPPC), 2022
Permanent magnet electrodynamic suspensions are good candidates to enable ground transportation systems to reach very high speeds. In these suspensions, the pole pitch of the permanent magnet field source has a significant influence on their performance. This article, therefore, studies qualitatively the impact of performance criteria, whether partial,
Beauloye, Louis, Dehez, Bruno, 2022 IEEE Vehicle Power and Propulsion Conference (VPPC)   +2 more
openaire   +2 more sources

Summary of a Bearingless Motor with Passive Electrodynamic Axial Suspension [PDF]

, 2021
Either active control or passive stabilization can be used to achieve non-contact magnetic sus-pension in magnetic bearings and bearingless motors. As the rotational speed is increased, the d-axis current becomes harder to regulate, thus motivating the ...
57226369138, Chiba, Akira, 35629, 70882356, 100001925, Cavalcante Rubio, Guilherme, 藤井, 勇介, Fujii, Yusuke   +7 more
core  

Developments on Electrodynamic Levitation of Rotors [PDF]

, 2012
Magnetic bearings are systems capable of supporting rotors in absence of mechanical contact. Among many advantages with respect to ball and roller bearings are the possibilities of operating at extremely high rotational speeds and free of maintenance ...
GIRARDELLO DETONI, JOAQUIM
core   +1 more source

Supercritical Angle Fluorescence and Raman Techniques in Biophotonics

Laser &Photonics Reviews, EarlyView.
Supercritical angle fluorescence (SAF) microscopy and supercritical angle Raman (SAR) spectroscopy have emerged as powerful tools in the field of biophotonics, enabling high‐resolution imaging and spectroscopy of biological specimens near interfaces. This review article provides a comprehensive overview of the principles, techniques, applications, and ...
Subir Das, Nathalia Simea Münch, Stefan Seeger   +2 more
wiley   +1 more source

Interaction Between Vortex‐Induced Vibrations and Base Vibrations in Piezoelectric Harvesters

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In the present era, powering sensors using green energy is a significant challenge. One promising solution for the power supply of small sensors relies on piezoelectric energy harvesters excited by vortex‐induced vibrations (VIVs) generated by wind.
Michele Tonan, Ilaria Palomba, Alberto Pasetto, Alberto Doria   +3 more
wiley   +1 more source