Abstract In applications requiring a large magnetic force, permanent magnets with non-parallel magnetization directions can be assembled in Halbach array to generate gradient of flux density. The saturation magnets, however, brings fundamental limit on the performance this configuration. present work, we investigate experimentally assembly cuboid bulk, grain melt-textured YBa 2 Cu 3 O <?CDATA $...

The paper has describes the complete design and investigation processes of permanent magnetic bearing. The passive magnetic bearing (PMB) rotor suspension rig employing no active control components was calculated, designed, constructed and tested. In order to increase the radial passive magnetic bearing stiffness, the Halbach-array configuration was used. The main purpose of the work was develo...

This paper proposes the design of a weighted-rotor energy harvester (WREH) in which the oscillation is caused by the periodic change of the tangential component of gravity, to harvest kinetic energy from a rotating wheel. When a WREH is designed with a suitable characteristic length, the rotor’s natural frequency changes according to the wheel rotation speed and the rotor oscillates at a wide a...

Abstract Magnetic nanoparticles are used in a wide range of medical applications. However, the accurate steering particles through vascular system is still an open research question. Thus, this paper introduces novel hybrid magnetic array for bifurcation. The consists permanent plus electromagnets and based on Halbach structure. It combines advantages strong field low-cost magnets with adjustab...