Results 81 to 90 of about 3,481,824 (246)

Optimization of a Novel Torque Sharing Function for Improved Switched Reluctance Motor Control Using PSO

ITEGAM-JETIA
Switched Reluctance Motors (SRMs) are increasingly adopted in modern electric drive systems due to their mechanical robustness, fault tolerance, and high efficiency.
Houda Fetoui, Ali Rezig, Chouaib Labiod, Ahmed Mesai Belgacem, Imene Bouguettah, Marwa Arabi   +5 more
doaj   +1 more source

Edge-rounded Magnet Poles for Reducing the Torque Ripple on a Radial Flux Inset Permanent Magnet Generator

International Journal of Technology, 2018
This study reports a novel strategy for minimizing torque ripple in a radial flux inset permanent magnet (RFIPM) generator by using a geometric modification of the magnet poles. We simulate the design of three different types of edge-rounded magnet (ERM)
Wike Handini, Rudy Setiabudy, Ridwan Gunawan, Chairul Hudaya   +3 more
doaj   +1 more source

Parameter Investigation for Stamp Manufacturing of Complex 3D Geometries Using Nanoimprint Lithography

Advanced Materials Technologies, EarlyView.
Nanoimprint lithography can replicate complex 3D microstructures with undercuts using single‐layer polymer stamps of different elasticities. By combining experiments and simulations, T‐shaped geometries and suitable undercut radii were identified that minimize stress and defects during demolding.
Christos Julianos Karapatzakis, Selina Burkert, Cordelia Friederike Wittemann, Andreas Heinrich   +3 more
wiley   +1 more source

Asymmetric Stator Teeth for Torque Ripple Reduction of Permanent Magnet Synchronous Machines for Hybrid Electric Vehicles

, 2014
This paper investigates the maximum torque capability and torque ripple reduction using the asymmetric stator teeth for interior permanence magnet (IPM) synchronous machines. Traditional electric machines have the identical width for all stator teeth and
Zhang, Julia, Grafmüller, Jan Oliver, Nuß, Uwe (Prof. Dr.-Ing.), Jan Oliver Grafmuller, Julia Zhang   +4 more
core   +1 more source

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

Advanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu, Moritz E. Kleybolte, Colin van Dyck, Sergey I. Vagin, Preeti Gahtori, Antonio Scarpati, Razieh Firouzihaji, Diogo A. Galico, Ulrich S. Schubert, Julianne Gibbs, Alkiviathes Meldrum   +10 more
wiley   +1 more source

Multi-Objective Optimization of a Spoke Type Synchronous Machine With Ferrite Magnets Considering Torque Ripple and Demagnetization

IEEE Access
Electric machines are used in various environments with noise and vibration requirements. Torque ripple is a key design parameter that is considered when evaluating these.
Marcelo D. Silva, Sandra Eriksson
doaj   +1 more source

Direct instantaneous torque control for switched reluctance machines considering mutual coupling

The Journal of Engineering, 2019
Torque ripple reduction is the main goal of direct instantaneous torque control (DITC). However, the quality of the switched reluctance machine control is only as good as its machine model.
Claude Pascal Weiss, Sebastian Schoeler, Rik Wivina De Doncker   +2 more
doaj   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source