Results 121 to 130 of about 351,773 (348)
Novel Winding Design and Analysis of Brushless Wound Rotor Synchronous Machines
IET Electric Power ApplicationsSynchronous 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 +3 more
doaj +1 more source
Control strategy of doubly-fed induction generator during the grid voltage swell
The Journal of Engineering, 2018 This study firstly derives the relationship between the grid voltage and the rotor current of doubly-fed induction generator (DFIG) during the grid voltage swell.
Zou Le +5 more
doaj +1 more source
Collision‐Resilient Winged Drones Enabled by Tensegrity Structures
Advanced Robotics Research, EarlyView.Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui +5 more
wiley +1 more source
Hybrid algorithm for rotor angle security assessment in power systems
The Journal of Engineering, 2015 Transient rotor angle stability assessment and oscillatory rotor angle stability assessment subsequent to a contingency are integral components of dynamic security assessment (DSA) in power systems.
D. Prasad Wadduwage +2 more
doaj +1 more source
, 2007 SIGABA is a World War II cipher machine used by the United States. Both the United States Army and the United States Navy used it for tactical communication.
Chan, Wing
core +4 more sources
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 +14 more
wiley +1 more source
Test characteristics of a welded rotor in a 36,000-rpm Lundell alternator [PDF]
Two four-pole Lundell-type rotors consisting of magnetic and nonmagnetic materials were fabricated by weld-depositing Inconel 625 between two sections of AISI 4617 steel. The rotors had a major diameter of 8.28 cm (3.26 in.).
Lumannick, S. +2 more
core +1 more source
Experimental Investigations of Acoustic Characteristics of Two Counter-Rotating Rotors. [PDF]
, 2016 The presented investigations are continuation of earlier researches performed in the Institute of Turbomachinery (Lodz University of Technology, Poland). The main aim of this paper is to investigate the acoustics properties of the chosen configuration of
Błaszczak, Jarosław R. +1 more
core
Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing
Advanced Robotics Research, EarlyView.This work presents a degradable soft magnetic composite made from recycled NdFeB particles embedded in a gelatin‐based organogel. The material is processed into magnetic sensors and soft robotic components, which can later be dissolved in a green solvent to recover NdFeB magnetic particles.
Muhammad Bilal Khan +14 more
wiley +1 more source
Comparative study of inner and outer rotor bearingless synchronous reluctance motors
The Journal of Engineering, 2019 In this study, the authors presented a systematic design procedure of outer rotor bearingless synchronous reluctance motor (SynRM). The proposed motor is compared with an already prototyped inner rotor bearingless SynRM at different operation points.
Victor Mukherjee +4 more
doaj +1 more source