Results 31 to 40 of about 176,170 (270)
Energy Reports, 2023 The stator of the stepped rotor type bearingless switched reluctance motor has two kinds of wide and narrow stator teeth. The wide stator teeth provide suspension force, and the narrow stator teeth provide torque, so the decoupling control of torque and ...
Zhenyao Xu +4 more
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Assessment of 3D modeling for rotor–stator contact simulations [PDF]
Journal of Sound and Vibration, 2015 Most often the dynamic analysis of rotor-to-stator rub is performed using 1D models. This leads to a small computational cost, but the reliability of the results is difficult to assess. This research work compares and analyzes the results of 1D and 3D rotor-stator contact problems, for different contact conditions more and less severe.
Mikhael Tannous +3 more
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A Novel Evaluation Method for Vibration Coupling of Complex Rotor–Stator Systems in Aeroengines
ActuatorsWith the increase in thrust–weight ratio of advanced aeroengines, the rotor and stator often exhibit comparable stiffness characteristics, leading to significant vibration coupling which harms the safety and reliability of operations.
Yongbo Ma +5 more
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Gong-kuang zidonghua, 2018 In view of problems of technical difficulties, high cost and high voltage requirements for power electronic components in current high voltage wound-rotor motor using stator-side high voltage inverter for frequency conversion speed regulation, a rotor ...
CHENG Guodong +2 more
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Upstream-radiated rotor–stator interaction noise in mean swirling flow [PDF]
, 2005 A major component of the noise in modern aeroengines is rotor–stator interaction noise generated when the wake from the rotating fan impinges on a stator row downstream.
Cooper, A. J., Peake, N.
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Bispectrum of stator phase current for fault detection of induction motor [PDF]
, 2009 A number of research studies has shown that faults in a stator or rotor generally show sideband frequencies around the mains frequency (50 Hz) and at higher harmonics in the spectrum of the Motor Current Signature Analysis (MCSA).
Gu, Fengshou +5 more
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Impulsive Control of the Rotor-Stator Rub Based on Phase Characteristic
Abstract and Applied Analysis, 2014 An impulsive control method is proposed to eliminate the rotor-stator rubbing based on the phase characteristic. The relation between the vibration energy and the phase difference suggests the starting point for controlling the rotor-stator rubbing by ...
Jieqiong Xu, Qunhong Li, Shimin Wang
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Induction machine fault detection enhancement using a stator current high resolution spectrum [PDF]
, 2012 Fault detection in squirrel cage induction machines based on stator current spectrum has been widely investigated. Several high resolution spectral estimation techniques have been developed and used to detect induction machine abnormal operating ...
CHARPENTIER, Jean-Frederic +8 more
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Rotationally induced ingress in rotor–stator systems [PDF]
Physics of FluidsThe presence of a rotating disk adjacent to a stationary disk forms a rotor–stator cavity known as a wheel-space. It is necessary for gas turbine wheel-spaces to be purged with sealing flow bled from the compressor to counteract the harmful effects of ingress.
D. Graikos +4 more
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Design Theory of Stator and Rotor of PDM Based on Rack Gearing Principle
Shiyou jixie, 2020 The stator and rotor contour designed by the traditional line pattern design method is not smooth at the joint of the cycloidal arc and the arc, where the stator rubber is continuously worn during operation, which will accelerate the damage of the rubber
Yao Yang
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