Results 81 to 90 of about 116,656 (313)

Estimation of Losses and Efficiency of Double-stator Switched Flux Permanent Magnet Machines

Nigerian Journal of Technological Development, 2022
Losses such as rotor iron and stator iron losses, magnet eddy current loss, as well as efficiency of a double stator permanent magnet machine having varying rotor pole numbers is estimated and presented in this study.
C. C. Awah, O. I. Okoro, A. J. Onah, G. C. Diyoke   +3 more
doaj  

Assessment of torque components in brushless permanent-magnet machines through numerical analysis of the electromagnetic field [PDF]

, 2005
For the calculation of torque in brushless (BL) alternating current motors a local method is proposed, based on the Maxwell stress theory and the filtered contributions due to the harmonics of the magnetic vector potential in the motor air gap.
Dellinger, S.J., Ionel, D.M., McGilp, M.I., Miller, T.J.E., Popescu, M.   +4 more
core   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Electric propeller drive based on a reactive electric machine for ice-class ships

Российская Арктика
The article presents the results of theoretical and experimental studies of a propulsion electric drive based on reactive electric machines with anisotropic magnetic conductivity of the rotor of a wide power range from 1.5 kW to 1.7 MW.
F. A. Gelver, I.V. Belousov, V.F. Samoseiko, A.V. Saushev   +3 more
doaj   +1 more source

Charge control experiments on a CH-53E helicopter in a dusty environment [PDF]

Charge control tests were carried out on a ground based, Marine Corps helicopter to determine if control of the electric fields acting on the engine exhaust gases could be used to reduce the electrification of the helicopter when it operated in a dusty ...
Hunyady, S. J., Jones, J. J., Moore, C. B.   +2 more
core   +1 more source

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

Advanced Robotics Research, EarlyView.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello, Tian Lan, Salaheldin Hassan, Maximilian Leutschafft, Erdem Ekinci, Sophie F. Armanini, Mirko Kovac, Basaran Bahadir Kocer   +7 more
wiley   +1 more source

Advanced Electrical Machines and Machine-Based Systems for Electric and Hybrid Vehicles

Energies, 2015
The paper presents a number of advanced solutions on electric machines and machine-based systems for the powertrain of electric vehicles (EVs). Two types of systems are considered, namely the drive systems designated to the EV propulsion and the power ...
Ming Cheng, Le Sun, Giuseppe Buja, Lihua Song   +3 more
doaj   +1 more source

Experimental research on the electric vacuum gyro Final technical report [PDF]

Electronic circuitry for suspending electric vacuum gyro rotor in center of electrode ...

core   +1 more source

IPMSM torque control strategies based on LUTs and VCT feedback for robust control under machine parameter variations [PDF]

, 2016
In recent years, Interior Permanent Magnet Synchronous Machines (IPMSMs) have attracted a considerable attention in the scientific community and industry for Electric and Hybrid Electric Vehicle (HEV) propulsion systems.
Arias Pujol, Antoni, Diaz de Guereñu, A., Ibarra Basabe, Edorta, Lopez, Iñigo, Peña, alberto, Salazar, Cristobal, Trancho, Elena   +6 more
core   +1 more source

Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing

Advanced Robotics Research, EarlyView.
This work presents a degradable soft magnetic composite made from recycled NdFeB particles embedded in a gelatin‐based organogel. The material is processed into magnetic sensors and soft robotic components, which can later be dissolved in a green solvent to recover NdFeB magnetic particles.
Muhammad Bilal Khan, Lin Guo, Kilian Schäfer, Eduardo Sergio Oliveros‐Mata, Xiaotao Wang, Florian Hofmann, Matthias Lutzi, Mark Suppelt, Proloy Taran Das, Jan Schmidtpeter, Imants Dirba, Stephan Rinderknecht, Mario Kupnik, Denys Makarov, Oliver Gutfleisch   +14 more
wiley   +1 more source