Results 51 to 60 of about 135,349 (273)

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, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Comprehensive Study of Speed Control And Power Loss Analysis Using Rotor Resistance And Slip Power Recovery Method [PDF]

, 2014
: Wound rotor induction motors have been popular for decades in the cement and mining industry for starting and driving large grinding mill. A wound rotor induction motor is large ac motor that controlled starting characteristics and adjustable speed ...
Dhaval D. Mer, Rakeshkumar A. Patel, Manish G. Prajapati   +2 more
core  

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

RANCANG BANGUN KONTROL PID PADA SPEED OBSERVER GENERATOR DC BERBASIS ARDUINO UNO [PDF]

, 2017
In this study discusses the development of observer to the generator speed direct current (DC) that is controlled using the rotary encoder sensor built using the Arduino UNO with recording capability of the two systems is also compared.
Bambang Sri Kaloko, M. Galih x Adi P., Adi P., M. Galih x, Kaloko, Bambang Sri   +3 more
core   +2 more sources

Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing

Advanced Robotics Research, EarlyView.
This work presents a degradable soft magnetic composite made from recycled NdFeB 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 NdFeB magnetic particles.
Muhammad Bilal Khan, Lin Guo, Kilian Schäfer, Eduardo Sergio Oliveros‐Mata, Xiaotao Wang, Florian Hofmann, Matthias Lutzi, Mark Suppelt, Proloy Taran Das, Jan Schmidtpeter, Imants Dirba, Stephan Rinderknecht, Mario Kupnik, Denys Makarov, Oliver Gutfleisch   +14 more
wiley   +1 more source

Performance calculation of high speed solid rotor induction machine [PDF]

, 2018
Solid rotor induction machines are suitable for applications which require robustness, reliability and high rotational speed. A literature review of high speed technologies is initially presented.
Papini, Luca
core   +2 more sources

Stator Design and Air Gap Optimization of High Speed Drag-Cup Induction Motor using FEM

Advances in Electrical and Computer Engineering, 2013
A huge number of modern applications nowadays require the use of high speed electrical machines which need to be highly optimized in order to achieve the best efficiency and the lowest mass and price.
VUKOSAVIC, S. N., MIHIC, D. S., TERZIC, M. V.   +2 more
doaj   +1 more source

Active Frequency Support Control Strategy for Wind Farm Considering the Energy Discrepancy of Wind Turbines [PDF]

Dianli jianshe
[Objective] Wind turbine generators generally operate in maximum power point tracking （MPPT） mode and do not provide inertial response and frequency support to the power grid.
LI Fengneng, YANG Ping, WEI Zhichu, CHEN Wenhao, ZHOU Qianyufan, WAN Siyang
doaj   +1 more source

Dynamic power-based temporary frequency support scheme for a wind farm

Frontiers in Energy Research, 2022
Doubly fed induction generators can participate in frequency support following a disturbance by releasing their rotational energies. However, when regaining the rotor speed, a secondary frequency dip (SFD) tends to produce a sudden output drop.
Jiahan You, Dan Xu, Jiangdong Cao
doaj   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source