Results 71 to 80 of about 1,210 (248)

Extending the range of dual-zone permanent magnet synchronous motor control

Vestnik MGTU
Achieving a twofold increase in the rotation speed of a permanent magnet synchronous motor while maintaining its power characteristics at the original level permits to increase the productivity and quality of material processing on metal-cutting machines.
Davydov A. E., Bochenkov B. M., Pankrats Yu. V.   +2 more
doaj   +1 more source

Magnet Synchronous Machine of Mine Belt Conveyor Gearless Drum-Motor

E3S Web of Conferences, 2018
In the recent decades there has been a tendency for simplifying gears construction, furthermore a lot of manufacturers design gearless electric drives for traction and power mechanisms.
Semykina Irina, Tarnetskaya Alexandra
doaj   +1 more source

Coupled electromagnetic-thermal-fluidic analysis of permanent magnet synchronous machines with a modified model

CES Transactions on Electrical Machines and Systems, 2019
The researches on the heat generation and dissipation of the permanent magnet synchronous machines (PMSMs) are integrated problems involving multidisciplinary studies of electromagnetism, thermomechanics, and computational fluid dynamics.
Gaojia Zhu, Xiaoming Liu, Longnv Li, Hai Chen, Jianguo Zhu   +4 more
doaj   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Losses, Efficiency and Thermal Behavior of the Synchronous Motors with Different PM Materials

Communications, 2013
The paper deals with losses, efficiency and thermal behavior of the synchronous machines with different permanent magnet (PM) materials. Three PMSM are presented in this paper: First, the PMSM with NdFeB PM, which is really constructed. Second, the NdFeB
Peter Sekerak, Valeria Hrabovcova, Matus Onufer, Pavol Rafajdus, Lukas Kalamen   +4 more
doaj   +1 more source

Design and Modeling of a High‐Displacement, Skin‐Integrated Flexible Electromagnetic Actuator for Haptic Interfaces in Virtual Reality

Advanced Robotics Research, EarlyView.
A flexible, skin‐integrated electromagnetic actuator is developed for wearable virtual/augmented reality (VR/AR) haptic systems. A tunable design model enables control over displacement and resonance frequency. The system is validated through a custom VR application with a 6 × 4 actuator array, demonstrating real‐time, spatially targeted tactile ...
Naji Tarabay, Alexandra Zhang Jiang, Ziteng Liu, Rachel Villamor, Derek Cha, Ananya Renuka Balakrishna, Tianshu Liu, Priyanshu Agarwal, Rainer Dömer, Camilo Velez   +9 more
wiley   +1 more source

Sleep Alters the Velocity of Physiological Brain Pulsations in Humans

Advanced Science, EarlyView.
Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy, Heta Helakari, Tommi Väyrynen, Zalán Rajna, Niko Huotari, Lauri Raitamaa, Ville Isokoski, Matti Järvelä, Mika Kaakinen, Johanna Piispala, Mika Kallio, Vesa Korhonen, Tapio Seppänen, Vesa Kiviniemi   +13 more
wiley   +1 more source

An Introduction of Standard IEC 60349-4 Permanent Magnet Synchronous Electrical Machines Connected to an Electronic Converter

Kongzhi Yu Xinxi Jishu, 2012
In order to play a supporting role for the releasing of standard IEC 60349-4 Permanent Magnet Synchronous Electrical Machines Connected to an Electronic Converter , the compiling process is described.
LI Yifeng, XU Junfeng
doaj  

Wearable and Implantable Devices for Continuous Monitoring of Muscle Physiological Activity: A Review

Advanced Science, EarlyView.
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao, Ata Golparvar, Mohammad Javad Bathaei, Filipe Arroyo Cardoso, Clementine M. Boutry   +4 more
wiley   +1 more source

Variable Flux Memory Machines for Electric Vehicles: A Comparative Study [PDF]

EPJ Web of Conferences
This paper overviews different synchronous machine types and topologies applied to electric vehicles (EV) traction. The very widespread permanent magnet synchronous machine (PMSM) and wound field synchronous machine (WFSM) are first compared in terms of ...
Guessoum Anis, Mazloum Rebecca, Hlioui Sami, Mermaz-Rollet Guillaume, Gabsi Mohamed   +4 more
doaj   +1 more source