Results 81 to 90 of about 31,354 (292)

Virtual Instruments for Detecting Rotor Faults in Induction Motors

Advances in Electrical and Electronic Engineering, 2004
Rotating electrical machines play an important role in the world´s industrial life. Hence there is a demand on their reliable and safe operation. Their faults and failures can lead to excessive downtimes and generate enormous costs in reduced output ...
Lorand Szabo, Jeno Barna Dobai, Karoly Agoston Biro   +2 more
doaj  

Single-Phase Autonomous Induction Generator with Single-Phase Rotor

Energies, 2017
An autonomous induction generator (IG) with an asymmetric configuration, in which both the stator and the rotor are single-phase, is often formed when a triple-phase wound rotor loses connection to a winding component while running.
Yotam Frechter, Natan Ben Hail, Raul Rabinovici   +2 more
doaj   +1 more source

Tendon‐Driven Compliant Wheel‐Less Snake Robot for Undulatory Locomotion Using Conformable Ground Contacts

Advanced Intelligent Systems, EarlyView.
This study presents a tendon‐driven compliant snake robot that uses globally applied vertical bending and axial twisting along its body to enable various gaits. Body deflection from compliance and weight passively generates the ground contact patterns required for locomotion.
Serdar Incekara, Seongil Kwon, Gangil Kwon, Junhyoung Ha   +3 more
wiley   +1 more source

Analysis and Design of a Brushless WRSM with Harmonic Excitation Based on Electromagnetic Induction Power Transfer Optimization

Magnetism
This paper proposes a method to analyze the effect of the rotor’s harmonic winding design and the output of a brushless wound rotor synchronous machine (WRSM) for optimal excitation power transfer.
Arsalan Arif, Farhan Arif, Zuhair Abbas, Ghulam Jawad Sirewal, Muhammad Saleem, Qasim Ali, Mukhtar Ullah   +6 more
doaj   +1 more source

Design optimization of a slotless PM brushless motor with spiral wound laminations for rim driven thrusters

, 2009
This paper discusses the analysis and design of a very thin slotless PM brushless motor whose stator laminations are manufactured from a single strip of steel that is edge wound into a spiral (like a “Slinky”) and then fitted over the windings that are ...
Lai, S.H., Sharkh, S.M.
core  

Computationally Efficient Strand Eddy Current Loss Calculation in Electric Machines [PDF]

, 2019
A fast finite element (FE) based method for the calculation of eddy current losses in the stator windings of randomly wound electric machines is presented in this paper.
Chong, Yew Chuan, Demerdash, Nabeel, Fatemi, Alireza, Ionel, Dan M., Staton, Dave A., Wrobel, Rafal   +5 more
core   +1 more source

Experimental Investigation of Microbubble Evolution in the Liquivac Multiphase Flow Pump

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This paper aims to experimentally investigate the mechanisms of microbubble characteristics evolution within an axial pump. The findings will aid in assessing the pump performance by identifying the range of bubble sizes and comparing them with the threshold size (< 300 μm). This study also provides evidence supporting the use of such pumps as
Hamad FA, Safa Najim, Keville Tony, Atma Prakash, Sajid Abdullah   +4 more
wiley   +1 more source

Performance Improvement of Brushless Wound Rotor Vernier Motor for Washing Machine Applications

IEEE Access
This paper presents the design and performance analysis of a brushless wound rotor vernier machine (BLWRVM) for variable speed applications, particularly in the context of domestic appliances like automatic washing machines which have two cycles of ...
Kapeel Kumar, Qasim Ali, Sheeraz Ahmed, Muhammad Humza, Abdul Aziz Memon, Mudassir Raza Siddiqi   +5 more
doaj   +1 more source

Hydrogel Embedding of Mesenchymal Stem Cells Supports Extracellular Vesicle Production

Biotechnology and Bioengineering, EarlyView.
This study investigates the effects of 3D culture conditions on extracellular vesicle (EV) production by mesenchymal stem cells (MSCs) in a gelatin‐based hydrogel matrix (GelMA). The EVs from both conditions were found to have similar morphological, molecular, and functional properties, but 3D cultures produced more total EVs per volume.
Rachel K. Moen, Gabriella Faircloth, Nicole T. Marguerite, Mariachiara Conti, Ethan S. Lippmann, Jamey D. Young   +5 more
wiley   +1 more source

Design and Optimization of Brushless Hybrid Wound Rotor Vernier Motor for Variable Speed Applications

IEEE Access
This paper presents the optimized design and electromagnetic performance analysis of a brushless hybrid wound rotor vernier motor (BL-HWRVM) for automatic washing machine applications.
Kapeel Kumar, Qasim Ali, Sheeraz Ahmed, Muhammad Ilyas, Hanlin Zhan, Mudassir Raza Siddiqi   +5 more
doaj   +1 more source