Results 21 to 30 of about 25,660 (250)
Magnetorheological landing gear: 1. A design methodology [PDF]
, 2007 Aircraft landing gears are subjected to a wide range of excitation conditions, which result in conflicting damping requirements. A novel solution to this problem is to implement semi-active damping using magnetorheological (MR) fluids.
Batterbee, D.C. +3 more
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Jixie chuandong, 2023 In the research of nutation magnetic drive, the torque density of gears is an important index to evaluate its performance. Thus, the analysis and optimization of the magnetic torque is particularly important.
Lou Meiyan, Yao Ligang, Guo Chenxian
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Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2022 The article presents a two-dimensional finite element model of the magnetic field of a magnetic system of a synchronous electric machine with fractional gear windings. The specific features of the distribution of magnetic fluxes (main effect, edge effect,
A. V. Menzhinski +2 more
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Design of a cost-effective magnetic gearbox for an aerospace application
The Journal of Engineering, 2019 Magnetic gears are designed to perform in a highly reliable manner, and offer several advantages compared to mechanical gears but difficulties with manufacturing techniques and cost are strong handicaps. In contrast to conventional gears, the contact and
Maamar Benarous, Marlene Trezieres
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Surface micromachined mechanisms and micromotors [PDF]
, 1991 Electric micromotors are sub-millimeter sized actuators capable of unrestrained motion in at least one degree of freedom. Polysilicon surface micromachining using heavily phosphorus-doped LPCVD polysilicon for the structural material, LPCVD silicon ...
Mehregany, Mehran, Tai, Yu-Chong
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Variable-speed rotor helicopters: Performance comparison between continuously variable and fixed-ratio transmissions [PDF]
, 2016 Variable speed rotor studies represent a promising research field for rotorcraft performance improvement and fuel consumption reduction. The problems related to employing a main rotor variable speed are numerous and require an interdisciplinary approach.
Benini, Ernesto +1 more
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World Electric Vehicle Journal, 2021 This paper covers a new emerging class of electrical machines, namely, Magnetic Gears (MGs) and Magnetically Geared Machines (MGMs). This particular kind of gears/machines is capable of either scaling up or down the revolutions-per-minute to meet various
Ali Al-Qarni, Ayman EL-Refaie
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Electromagnetic analysis of a wind turbine magnetic gearbox
The Journal of Engineering, 2019 The design of the second stage of a 59:1 multi-stage magnetic gearbox for a wind turbine demonstrator is presented. The multi-stage series-connected magnetic gearbox is composed of a 6.45 first stage and 9.14 second stage.
Kang Li +3 more
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Investigation of Magnetic Gear System Based on the Use of Superconductor and Permanent Magnet
IEEE AccessMagnetic gears claim to represent the latest technology in power transmission, offering many advantages over mechanical gear systems. Combined with superconductivity, these innovative structures have the potential to provide efficiency, low energy loss ...
Emre Akyerden, Ahmet Cansiz
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A superconducting magnetic gear [PDF]
Superconductor Science and Technology, 2016 A comparison is made between a magnetic gear using permanent magnets and superconductors. The objective is to see if there are any fundamental reasons why superconducting magnets should not provide higher power densities than permanent magnets. The gear is based on the variable permeability design of Attilah and Howe (2001 IEEE Trans. Magn. 37 2844–46)
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