Results 11 to 20 of about 2,227,725 (249)
Performance studies of oil lubricated helical groove journal bearing [PDF]
, 1992 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The provision of helical grooves on the surface of a plain journal bearing can improve the stability of a rotor-bearing system.
Khan, Muhammad Zubair
core +7 more sources
Preliminary Feasibility Study of a Magnetic Levitation Rotor Sail for Coastal Area Operations
Journal of Marine Science and Engineering, 2023 The continuous strengthening of environmental regulations is expected to have a significant impact on the vessel operations of shipping companies. Each country must reduce greenhouse gas emissions from ships operating in domestic coastal areas to meet ...
Kwangseok Lee +4 more
doaj +1 more source
Principle and performance analysis for six‐pole hybrid magnetic bearing with a secondary air gap
Electronics Letters, 2021 In order to reduce the non‐linearity of radial suspension forces of the three‐pole hybrid magnetic bearing and further reduce the cost and power consumption, an AC six‐pole hybrid magnetic bearing with secondary air gaps is proposed. First, the structure
Gai Liu, Huangqiu Zhu, Weiyu Zhang
doaj +1 more source
Space Vector Modulation for High Dynamic Current Control of a Self-Sensing Active Magnetic Bearing
, 2021 The control loop of active magnetic bearings requires feedback of the rotor position to enable a stable levitation of the rotor. In contrast to conventional position sensor-based systems, self-sensing control can lead to a far more simple design of the ...
Wimmer, Dominik +2 more
core +4 more sources
Inventions, 2021 An ever-increasing demand for electrical power and soaring levels of energy consumption around the world have led to an energy crisis. Thus, this paper aims to review the conventional technologies against those of newer developments in electrical power ...
Wenich Vattanapuripakorn +6 more
doaj +1 more source
Modeling of a Digital Twin for Magnetic Bearings
Applied Sciences, 2023 As an essential enabling technology to realize advanced concepts such as digitization, intelligence, and service, information technology plays a critical role in shaping modern society and driving innovation across various industries and domains.
Omer W. Taha, Yefa Hu
doaj +1 more source
A multi-purpose control and power electronic architecture for active magnetic actuators [PDF]
, 2012 This paper shows the results related with the design and implementation of a multi-purpose electronic architecture used to drive magnetic actuators by means of a three-phase independent-legs module in place of the commonly used H-bridge modules.
M. Chiaberge +9 more
core +1 more source
Rotors on Active Magnetic Bearings: Modeling and Control Techniques [PDF]
, 2012 In the last decades the deeper and more detailed understanding of rotating machinery dynamic behavior facilitated the study and the design of several devices aiming at friction reduction, vibration damping and control, rotational speed increase and ...
Tonoli, Andrea +8 more
core +1 more source
Six pole type hybrid magnetic bearing for turbo-machinery
Mechanical Engineering Journal, 2017 New six pole type hybrid magnetic bearing is introduced. It is intended to apply to high speed turbo-machinery. Traditionally turbo-machinery uses standard electromagnet (EM) type active magnetic bearing (AMB) which requires PWM power amplifiers ...
Yohji OKADA +4 more
doaj +1 more source
Mechanical Engineering Journal, 2015 Highly efficient hybrid type magnetic bearing is proposed in this paper. It is intended to apply the proposed magnetic bearing to ultra low temperature fluid pump.
Yohji OKADA +4 more
doaj +1 more source