Results 21 to 30 of about 176,170 (270)

Investigations on Design Space for Highly Loaded Tandem Bladed Axial Flow Rotor- novel Stator for Low-speed Compressor Research Facility [PDF]

open access: yesJournal of Applied Fluid Mechanics
Tandem bladed axial flow compressor concept has immense potential for increasing the stage loading over conventional stages. This infers significant improvement in gas turbine engine operational economics and performance.
A. Singh, C. S. Mistry
doaj   +1 more source

Numerical investigation on unsteady force suppression of pump-jet rotor by oscillating stator trailing edge flaps

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectivesThe unsteady force of the rotor is the main excitation source of pump-jet shafting vibration, and rotor-stator interaction has an important impact on the characteristics of the unsteady force.
Wanghao TANG   +3 more
doaj   +1 more source

A High-Resolution Self-Powered Angular Displacement Sensor Based on Triboelectric Nanogenerator With Time-Grating. [PDF]

open access: yesAdv Sci (Weinh)
A self‐powered phase‐encoding sensing paradigm enables direct motion‐to‐time information conversion, providing a compact and autonomous strategy for high resolution angular displacement measurement. ABSTRACT In modern manufacturing and engineering, angular displacement sensors are crucial for motion control and feedback systems in Electromechanical ...
Wang S, An D, Liu S, Wu Z.
europepmc   +2 more sources

Torqueless transmission [PDF]

open access: yesE3S Web of Conferences
An 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]

open access: yesE3S 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

Thermal Modeling of a Mini Rotor-Stator System [PDF]

open access: yesVolume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C, 2009
In this study the temperature increase and heat dissipation in the air gap of a cylindrical mini rotor stator system has been analyzed. A simple thermal model based on lumped parameter thermal networks has been developed. With this model the temperature dependent air properties for the fluid-rotor interaction models have been calculated.
Dikmen, E.   +4 more
openaire   +2 more sources

Influence of stator and rotor geometric parameters on rotor bar current waveform and performance of IMs

open access: yesThe 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

On the transient behaviour of a laminar rotor–stator cavity [PDF]

open access: yesJournal of Fluid Mechanics, 2018
The unsteady laminar flow between two large rotating disks when one of them is impulsively started is described using the von Kármán similarity analysis to reduce the solution of the Navier–Stokes equations to a set of ordinary differential equations. It is found that the transient phenomenon consists of three distinct phases.
Corral García, Roque   +1 more
openaire   +3 more sources

Modeling and Evaluation of Stator and Rotor Faults for Induction Motors

open access: yesEnergies, 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

Online Rotor and Stator Resistance Estimation Based on Artificial Neural Network Applied in Sensorless Induction Motor Drive

open access: yesEnergies, 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

Home - About - Disclaimer - Privacy