Results 21 to 30 of about 108,858 (358)
IET Electric Power Applications, 2009 A new operational mode for mixed-pole machines is presented. The proposed wound reluctance rotor machine can produce an n-phase rotor electric power from the rotor windings to a resistive or inductive load, independent of rotor torque, at any desired synchronous speed.
Abdel-Khalik, A. +4 more
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Comparison of electrical collection topologies for multi-rotor wind turbines [PDF]
Wind Energy Science, 2020 Abstract. Multi-rotor wind turbines (MRWT) have been suggested in literature as a solution to achieving wind turbine systems with capacities greater than 10 MW. MWRT's utilise a large number of small rotors connected to one support structure instead of one large rotor, with the aim of circumventing the square cube law.
Pirrie, Paul +2 more
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MachinesRolling bearings are prone to failure due to the complexity and serious operational environment of rotating equipment. Intelligent fault diagnosis based on convolutional neural networks (CNNs) has become an effective tool to ensure the reliable operation
Kai Huang +6 more
doaj +1 more source
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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A Graph-Data-Based Monitoring Method of Bearing Lubrication Using Multi-Sensor
LubricantsSuper-precision bearing lubrication condition is essential for equipment’s overall performance. This paper investigates a monitoring method of bearing lubrication using multi-sensors based on graph data.
Xinzhuo Zhang +5 more
doaj +1 more source
Design and Performance Analysis of Super Highspeed Flywheel Rotor for Electric Vehicle
World Electric Vehicle Journal, 2022 The optimal design of a super highspeed flywheel rotor could improve flywheel battery energy density. The improvement of flywheel battery energy density could enhance the performance of the flywheel lithium battery composite energy storage system ...
Pengwei Wang +5 more
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Control strategy for switched reluctance motor with rotary encoder based rotor position detection [PDF]
, 2018 Development of electric drive tends to the use of Switched Reluctance Motor (SRM) for their advantages and green technology issues. The SRM takes significant place in development for its simplicity, robust construction, and low cost.
Riyadi, Slamet
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The influence of temperature on ultrasonic signals in online measurement of oil film thickness
FrictionUltrasonic reflection provides a real-time way to monitor oil film thickness in a running machine with a nondestructive advantage. However, the influence mechanism of temperature on reference signals has not been clarified thus far, which hinders the ...
Yaping Jia +6 more
doaj +1 more source
An Unmanned Helicopter Energy Consumption Analysis
Energies, 2023 The number of operations incorporating E-VTOL aircrafts is increasing each year, and the optimization of the energy consumption of such vehicles is a major problem.
Marcin Żugaj +5 more
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Active control for performance enhancement of electrically controlled rotor
Chinese Journal of Aeronautics, 2015 AbstractElectrically controlled rotor (ECR) system has the potential to enhance the rotor performance by applying higher harmonic flap inputs. In order to explore the feasibility and effectiveness for ECR performance enhancement using closed-loop control method, firstly, an ECR rotor performance analysis model based on helicopter flight dynamic model ...
Chao Wang, Yang Lu
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