Results 351 to 360 of about 1,737,791 (396)

ROTOR OF AN ELECTRIC MACHINE

2011
The invention relates to a rotor (1) of an electric machine, which is formed from individual segments (2), wherein each individual segment (2) comprises a first part (4), which in the assembled state is in contact with a second corresponding part (5) of the adjacent individual segment.
DAIMLER AG, KOENIG WERNER
openaire   +1 more source

ELECTRICAL MACHINE COMPRISING DISC ROTORS

2001
The invention relates to an electrical machine comprising at least two disc rotors. Each disc rotor is equipped with a number of permanent magnets, which generate axially oriented magnetomotive forces and which are uniformly distributed over the periphery.
GENIUS INGENIEUR GMBH, POESCHL GUENTER
openaire   +1 more source

Development of a Radial-Flux Machine With Multi-Shaped Magnet Rotor and Non-Ferromagnetic Yoke for Low Torque Ripple and Rotor Mass

IEEE transactions on industry applications
Torque ripple and rotor mass of electric machines are very significant for aerospace applications, as they may influence the vibration level and system dynamic performance greatly.
Pengjie Xiang, Liang Yan, Lijia Ge, Xinghua He, Nannan Du, Xiaoshuai Liu, Xuxu Yang, Wei Hua, I-Ming Chen   +8 more
semanticscholar   +1 more source

Superconducting wound rotor for axially excited electrical motor

Journal of Physics and Chemistry of Solids, 2006
The development of HTS motors of the fractional range has shown the relevance of the design of the rotor where the opportunity to apply HTS in both BSCCO tapes and YBCO bulks has been demonstrated as an efficient way to increase the power density. In this work we report on a BSCCO wound rotor axially excited showing the advantages over equivalent ...
A. González, J. López, R. Bosch, X. Granados   +3 more
openaire   +1 more source

A comparative 3-D transient electromagnetic, thermal and powertrain study of single rotor BLPMSM and dual rotor machine for electric propelled vehicle

Electrical Engineering, 2021
Bharathi Thangaraj, R. Subramanian
semanticscholar   +1 more source

Measurement of electrical polar symmetry in turbogenerator rotors

Measurement Science and Technology, 2012
This paper presents a measurement technique and an analysis of the electrical polar symmetry in turbogenerator rotors using the so-called recurrent pulse comparison with the injection of charge as the excitation source. The polar symmetry should be measured because it provides information that allows electrical insulation failures in the rotor winding ...
J Ramírez-Niño, A González Vázquez
openaire   +1 more source

Electrical instability in cardiac muscle: Phase singularities and rotors

Journal of Theoretical Biology, 1989
A dynamical system is "excitable" at some stage in its behavior (e.g. at a rest state or while it is nearly at rest prior to a spontaneous event) if a small, but not too small, stimulus of the right kind elicits an immediate big reaction that eventually leads back to the original state.
openaire   +2 more sources

New Generation Electric Tail Rotor Performance Analyses

2023 10th International Conference on Recent Advances in Air and Space Technologies (RAST), 2023
Onur Açar, Osman Ergüven Vatandaş, Özge Özdemir   +2 more
openaire   +1 more source

ROTOR ARRANGEMENT FOR AN ELECTRICAL MACHINE

2015
The invention relates to a rotor arrangement (4) for a drive motor (2) of a bicycle, comprising: - a cylindrical magnetic return path element (12); and - permanent magnets (8) which are arranged on the magnetic return path element (12) with a radial direction of polarity in the circumferential direction in order to form the rotor poles (14 ...
openaire   +1 more source

The Choice of the Rotor Geometry of Synchronous Reluctance Machines for Electric Drives for Cold-Rolling Tube Mills

Russian Electrical Engineering, 2020
A. N. Gorozhankin
semanticscholar   +1 more source