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Showing 1 to 13 of 13 for “"Halbach array"”.
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Implementation of a Halbach array in a tubular linear motor
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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Analysis And Modeling Of The Eds Maglev System Based On The Halbach Permanent Magnet Array
… transportation / space launch assist system. The Halbach array due to its unique magnetic field feature has been widely used in various applications. The EDS system using Halbach arrays leads to the potential EDS system without super-conductor (SC) technology. In this thesis, the Halbach array …
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Design considerations and implementation of an electromechanical battery system
… battery using an outside rotor permanent magent Halbach array with hybrid magnetic bearings and heat pipe cooling. The theoretical calculations include finite element analysis. A dipole Halback array produces a uniform flux distribution inside the cylindrical statoe, where straight windings on an …
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Design of a High Specific Power Electric Machine for Turboelectric Propulsion
… In this concept, an outer rotor, tooth-and-slot Halbach array is integrated with the low pressure compressor of a low fan pressure ratio aeroengine. The specific power of the integrated compressor generator is estimated to be 14.8 kW/kg, exceeding the NASA 2030 goal for aviation applications of …
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Mechanical design and validation of 1 MW permanent magnet synchronous machine (PMSM)
… There are also other innovative designs such as Halbach array magnets and air gap windings. Combination of these designs does impose challenges for the mechanical design of the motor. Not only does mechanical integrity like strength need to be considered, but dynamic performance, vibration and …
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Nuclear magnetic resonance sensors and methods for chemical sensing in tissue
… use. A magnet assembly based on a linear Halbach array was developed to produce a large, remote, and uniform field. Suitable impedance matching circuitry was designed and constructed to efficiently transmit signals between NMR probes and a radiofrequency spectrometer. This system is …
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Study of Second Generation High Temperature Superconductors: Electromagnetic Characteristics and AC Loss Analysis
… Multiphysics, and found that a Superconducting Halbach Array magnet can achieve all the requirements (magnetic field properties, geometry, portability, etc.) for the LFEIT system. The optimization study of the superconducting Halbach Array magnet has been carried out on the FEM platform of …
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ENGINEERING MAGNETIC DEVICE AND NANOPARTICLES PLATFORMS TO IMPROVE DRUG ACCUMULATION AND PENETRATION IN TUMORS FOR ENHANCED CANCER TREATMENT
… an 8−magnet device arranged in an annular Halbach array. This configuration promotes radial outward movement of nanoparticles from the center of the bore due to its enhanced constant magnetic gradient. By utilizing Chlorin e6-coated magnetic nanoclusters (Ce6 clusters) with densely packed …
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Mechanical design of high frequency, high power density electric machine
… materials and technologies, such as Halbach array magnets and airgap windings. Combining these novel ideas imposed challenges onto the mechanical design of the motor, mainly because the design was optimized to thin radial builds for weight reduction, while the motor structural …
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Modeling, Manufacturing, and Experimental Validation of an Electric Machine for Aircraft Propulsion
… the air-gap field created by a segmented Halbach array rotor is derived from Maxwell’s Equations. The closed-form solution for the air-gap field matches Finite Element Analysis (FEA) to within 1% and experimental data from the manufactured prototype to within the tolerance of the …
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High force density linear permanent magnet motors : "electromagnetic muscle actuators"
… sources of magnetic field, specifically periodic arrays of permanent magnets. We explain how to calculate these parameters for a variety of different types of magnet arrays using analytical magnetic field and heat transfer models, and present a new field model for tubular linear motors having …
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Technology Demonstration of a Megawatt-Class Integrated Motor Drive for Aircraft Propulsion
… A tooth-and-slot stator with an outer rotor Halbach array rotor architecture is identified to maximize electric machine specific power with current technology across a range of power levels from 100 kW to 3.6 MW. A fully air-cooled 1 MW integrated motor drive is developed to demonstrate the …
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Design and development of functional foot for agile and dynamic legged robots
… foot pads (a rubber pad and micro-spine arrays), which can be switched based on the slip condition to compensate for their drawbacks. A passive slip detection mechanism as well as a lock & release mechanism have been designed to switch the rubber pad to the micro-spine arrays in the event …