Results 31 to 40 of about 390,386 (244)

Harmonics asynchronous torques in wound rotor induction motor with frequency converter in the rotor [PDF]

Mining and Metallurgy Engineering Bor, 2014
The subject of this paper is the harmonics asynchronous torqueses which appear due to the presence of high time harmonics in the voltage and current of wound rotor induction motor whose speed is regulated by frequency converter in the rotor circuit ...
Vukić Đukan, Štatkić Saša, Milkić Žarko   +2 more
doaj   +1 more source

Main rotor-tail rotor intraction and its implications for helicopter directional control [PDF]

, 2008
Aerodynamic interference between the main and tail rotor can have a strong negative influence on the flight mechanics of a conventional helicopter. Significant unsteadiness in the tail rotor loading is encountered under certain flight conditions, but the
Fletcher, Timothy M., Brown, R.E.
core   +4 more sources

Rotor Asymmetry Detection in Wound Rotor Induction Motor Using Kalman Filter Variants and Investigations on Their Robustness: An Experimental Implementation

Machines, 2023
This paper analyzes the performance of Kalman filter-based estimators for robust filtering and rotor asymmetry detection in wound rotor induction machines (WRIMs) using real-time data. Filter models were designed based on an extended model of WRIMs.
Furzana John Basha, Kumar Somasundaram
doaj   +1 more source

Numerical Finite Element Modelling and Simplified Analytical Methodology for the Structural Analysis of Wound Rotors in Electric Motors

Engineering Proceedings
Wound rotor electric motors offer low production costs and environmental sustainability, making them preferable over rare-earth-based motors, particularly at low speeds.
Saverio Giulio Barbieri, Sara Mantovani, Valerio Mangeruga   +2 more
doaj   +1 more source

Máquina assíncrona trifásica de rotor bobinado duplamente alimentada por meio de transformador rotativo [PDF]

, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2011A máquina assíncrona trifásica é um equipamento extremamente difundido no universo das máquinas ...
Ruviaro, Maurício
core  

A Versatile‐Designable Framework for Active and Programmable Shape‐Morphing Soft Matter Systems: From Inverse Design to Closed‐Loop Control

Advanced Science, EarlyView.
A versatile framework integrates addressable electrothermal actuation and strain‐constraint mechanisms to construct programmable shape‐morphing soft matter systems. By combining an analytical inverse design strategy for high‐fidelity 3D surface reconstruction with deep learning‐based closed‐loop control, this approach enables zero‐energy shape locking,
Kai Liu, Peiling Xie, Ruitong Song, Banghan Liu, Rui Guo, Jiu‐an Lv   +5 more
wiley   +1 more source

Hydration‐Gated Photoinduced Electron Transfer in BODIPY Dyes

Angewandte Chemie, EarlyView.
Hydration switches photoinduced electron transfer (PET) ON in alkoxy‐coordinated BODIPY dyes via specific hydrogen bonding. This gating yields a fluorescence lifetime span of ∼6 ns, enabling fluorescence lifetime imaging microscopy (FLIM) contrast in live cells and organoids. ABSTRACT Fluorescent probes based on photoinduced electron transfer (PET) are
Venkata N. K. Mamillapalli, Irina A. Okkelman, Fatima Akhssas, Greta Sambucari, Angela C. Debruyne, Dinesh Beniwal, Christophe Bucher, Mariangela Di Donato, Ruslan I. Dmitriev, Mikhail A. Filatov   +9 more
wiley   +2 more sources

Analysis of Cogging Torque Ripple Based on Multiple Square-Wave Radial Superposition MMF for Wound-Field Synchronous Motors

IEEE Access
Bilateral slotting restricts the application of wound-field excitation synchronous motors in underwater vehicles, which focus on vibrations. There are few studies on the wound rotor, and the theory of permanent magnet motors is not entirely applicable ...
Tingting Hou, Jiakuan Xia, Jin Chen, Meijun Qi   +3 more
doaj   +1 more source

The IRE1‐XBP1s Axis Drives Inflammatory Osteolysis by Regulating a 5‐HT Dependent Endogenous Anti‐Autophagy Mechanism

Advanced Science, EarlyView.
A previously unrecognized IRE1‐XBP1s‐Slc6a4 signaling axis links endoplasmic reticulum stress to serotonin metabolism, autophagy, and inflammatory osteoclastogenesis. By promoting intracellular serotonin uptake and reducing endogenous 3‐methyladenine accumulation, this pathway accelerates inflammatory bone destruction and provides a promising ...
Pengchao Yang, Binxiang Zhu, Yuzhi He, Yang Tian, Honglei Kang, Shian Hu, Pengju Wang, Yong Xu, Zhuowei Lei, Peijun Qi, Hao Yang, Yang Lin, Yimin Dong, Feng Li, Hanfeng Guan   +14 more
wiley   +1 more source

Novel Winding Design and Analysis of Brushless Wound Rotor Synchronous Machines

IET Electric Power Applications
Synchronous machines are electric machines characterised by a rotating speed proportional to the AC supply and are independent of load. Traditional permanent magnet synchronous machines utilise rare earth minerals for rotor flux generation, posing ...
Ahsan Fayyaz, Faizan Mehmood, Ch. Muhammad Arbab Waheed, Zahid Ullah   +3 more
doaj   +1 more source