Results 21 to 30 of about 22,082 (291)
An experimental study of rotational pressure loss in rotor-stator gap
Propulsion and Power Research, 2017 The annular gap between rotor and stator is an inevitable flow path of a throughflow ventilated electrical machine, but the flow entering the rotor-stator gap is subjected to the effects of rotation.
Yew Chuan Chong +3 more
doaj +1 more source
E3S Web of ConferencesAn experimental sample of a drill implementing a torqueless method of operation has been developed, manufactured and tested. As a birotative motor, a standard DC commutator motor DP12-24 is used, supply voltage 24 V DC, rated rotation speed 3500 rpm ...
Tillaboev Muxiddin +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
Windage measurements in a rotor stator cavity with rotor mounted protrusions and bolts [PDF]
, 2012 This paper reports an experimental investigation of the windage associated with enclosed rotor-stator systems with superposed throughflow, as commonly found in gas turbine engines.
Coren, Daniel +2 more
core +1 more source
Turbulence characteristics of the B\"{o}dewadt layer in a large enclosed rotor-stator system [PDF]
, 2006 A three-dimensional (3D) direct numerical simulation is combined with a laboratory study to describe the turbulent flow in an enclosed annular rotor-stator cavity characterized by a large aspect ratio G=(b-a)/h=18.32 and a small radius ratio a/b=0.152 ...
Anthony Randriamampianina +5 more
core +7 more sources
The Journal of Engineering, 2019 In this study, the influence of the stator and rotor geometric parameters on the rotor bar current waveform and performance characteristics of a squirrel-cage induction machine (IM), based on a slot/pole number combination (48-stator slot/8-pole/52-rotor
Tayfun Gundogdu +4 more
doaj +1 more source
Modeling and Evaluation of Stator and Rotor Faults for Induction Motors
Energies, 2019 The modeling of stator and rotor faults is the basis of the development of online monitoring techniques. To obtain reliable stator and rotor fault models, this paper focuses on dynamic modeling of the stator and rotor faults in real-time, which adopts a ...
Jing Tang +5 more
doaj +1 more source
Heat transfer in rotor stator cavity [PDF]
EPJ Web of Conferences, 2015 This paper presents a procedure for experimental determining the local heat transfer coefficient in the rotor-stator cavity. As an operating medium is used a hot air with various mass flow rate and rotating speed of the cavity wall. The surface temperature and heat flux distribution takes into account the change of material properties as a function of ...
Šnajdárek, Ladislav +2 more
openaire +3 more sources
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
doaj +1 more source
Energies, 2020 This paper presents a new approach method for online rotor and stator resistance estimation of induction motors using artificial neural networks for the sensorless drive.
Tuan Pham Van +5 more
doaj +1 more source