Results 41 to 50 of about 1,737,791 (396)
Rotor resonances of high-speed permanent-magnet brushless machines [PDF]
, 2002 For high-speed machines, in particular, it is very important to accurately predict natural frequencies of the rotor at the design stage so as to minimize the likelihood of failure.
Ede, J.D., Howe, D., Zhu, Z.Q.
core +1 more source
IET electric power applications, 2019 Radial force F r is the main cause of electromagnetic vibration and noise in motors. In this study, the vibration and noise characteristics of a permanent magnet synchronous motor (PMSM) with consideration of rotor-step skewing are investigated ...
Xiao-yuan Wang, Xibin Sun, Peng Gao
semanticscholar +1 more source
Semi-active vibration control of high-speed rotor system with electrorheological bearing fluid
MATEC Web of Conferences, 2018 Present work focuses on the use of electrorheological fluid (ERF) as a lubricant in the high speed turbocharger rotor supported on floating ring bearings. The rotor is analysed by finite element modelling with gyroscopic effects and bearing forces.
Mutra Rajasekhara Reddy, Srinivas J
doaj +1 more source
In-wheel axial-flux SRM drive for light electric vehicles [PDF]
, 2018 Revenues from global sales of light electric vehicles are expected to grow from $ 9.3 billion in 2017 to $ 23.9 billion in 2025. In order to boost this growth electric drives with better features and lower costs have to be developed.
Andrada Gascón, Pedro +5 more
core
A SyR and IPM machine design methodology assisted by optimization algorithms [PDF]
, 2012 The design optimization of synchronous reluctance (SyR) machine and its extension to internal permanent magnet (IPM) motors for wide speed ranges is considered in this paper by means of a Finite Element Analysis-based multi-objective genetic algorithm ...
Armando, Eric Giacomo +3 more
core +1 more source
Advanced Functional Materials, EarlyView.In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund +6 more
wiley +1 more source
Heliyon, 2018 This work presents a new and useful method to dimension wind turbines and control systems and to optimize their mechanical design. This method allows determining the principal curves for characterizing a small capacity wind turbine designed with a ...
A. Verde +5 more
doaj +1 more source
Matrix structure of unified mathematical model of electric AC machines at control [PDF]
E3S Web of Conferences, 2020 The matrix structure of the equations of a generalized electric alternating current machine is proposed, which, based on the Parke equations, is written in the coordinate axes of the machines rotating with the rotor speed.
Mustafayev Rauf +2 more
doaj +1 more source
General Electric composite ring-disk flywheel: Recent and potential developments [PDF]
, 1984 Recent developments of the General Electric hybrid rotor design are described. The relation of the hybrid rotor design to flywheel designs that are especially suitable for spacecraft applications is discussed.
Coppa, A. P.
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Analysis of Temperature Field and Water Cooling of Outer Rotor In-Wheel Motor for Electric Vehicle
IEEE Access, 2019 In view of the narrow installation space of high power density and high torque in-wheel motor, the heat existed the in-wheel motor is balanced by cooling water channel to ensure the heat dissipation of the high power density in-wheel motor. In this paper,
Qiping Chen +4 more
semanticscholar +1 more source