Abstract: The counter-rotating axial-flux hybrid-excitation permanent magnet (PM) machine is a novel power device specifically designed for counter-rotating propeller (CRP) systems. Cogging torque (CT ...

Back in 2009, a friend bet British cyclist Paul Spencer that he couldn't ride his bike the length of the British Isles in less than a week. Spencer took up the challenge, and completed the route – ...

Abstract: In this article, a stator-PM counter-rotating dual-rotor high-speed flywheel electrical machine (SPMCRDR-HSEM) equipped with flux-intensifying permanent magnet (IPM) and split fault-tolerant ...

A team of researchers affiliated with UNIST has made a significant breakthrough by mathematically proving that a special type of vortex pair, called the Sadovskii vortex patch, can exist within ideal ...