Results 31 to 40 of about 11,763 (288)

Mechanism of Temperature’s Acting on Electro-Hydraulic Servo Valve

IEEE Access, 2019
To understand temperature's influence on the electro hydraulic servo valve, a theoretical model of describing the detailed mechanism is necessary. For a servo valve experiencing actual working conditions, the temperature variation acts on the performance
Hao Yan, Yang Liu, Li Ma
doaj   +1 more source

Teleoperating a mobile manipulator and a free-flying camera from a single haptic device [PDF]

, 2017
© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Basañez Villaluenga, Luis, Claret Robert, Josep Arnau, Zaplana Agut, Isiah   +2 more
core   +1 more source

Bilateral Servo Mechanisms via Adaptive Control.

Journal of the Japan Society for Precision Engineering, 2002
Bilateral servo systems are useful on remote control manipulators because operators can defend objects against damages by reaction force feeling. In this study an adaptive control method is introduced on a slave manipulator with unknown dynamic parameters on the basis of the bilateral servo system including force error compensation method.
Nobuaki FUJIKI, Kazuo KANZAKI
openaire   +2 more sources

Transfer of Energy and Momentum Between Magnetoactive Surface Microstructure and a Solid Object

Advanced Engineering Materials, EarlyView.
We demonstrate that magnetoactive multilamellar arrays subjected to a rotating magnetic field can function as platforms for controlled transport of physical objects. Through systematic experimental investigation, we elucidate the underlying physical mechanisms determining the upper limit of the achievable transportation speed in such magnetic “conveyor‐
Arne Geldof, Jan Kopačin, Izidor Straus, Raphael Kriegl, Gaia Kravanja, Luka Hribar, Matija Jezeršek, Mikhail Shamonin, Gašper Kokot, Irena Drevenšek‐Olenik   +9 more
wiley   +1 more source

Fractional-Order Modeling and Identification for Dual-Inertia Servo Inverter Systems with Lightweight Flexible Shaft or Coupling

Fractal and Fractional
To effectively mitigate resonance in dual-inertia servo inverter systems with a lightweight flexible shaft or coupling, the precise modeling of the dual-mass mechanism is essential.
Xiaohong Wang, Yijian Su, Ying Luo, Tiancai Liang, Hengrui Hu   +4 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Research on thermodynamic modeling and temperature prediction of double flapper-nozzle servo valves

Case Studies in Thermal Engineering
The thermal characteristic design of the aerospace servo valve is of significant importance due to the high temperature operating conditions. This paper aims to study the law of temperature variation of the internal chambers and shell of the servo valve ...
Lei Li, Gen Wang, Libo Qiu, Cunkun Cai
doaj   +1 more source

Analysis and experimental validation of a pressure control method using magneto-rheology fluid flows

The Journal of Engineering, 2018
In this study, a spool actuating mechanism using controlled pressure difference is proposed for a large hydraulic servo valve. The actuating mechanism is accomplished by tuning magneto-rheological (MR) fluid flow.
Fan Wang, Ning Guo, Linxiang Wang
doaj   +1 more source

Amplified wind turbine apparatus [PDF]

, 1982
An invention related to the utilization of wind energy and increasing the effects thereof for power generation is described. Amplified wind turbine apparatus is disclosed wherein ambient inlet air is prerotated in a first air rotation chamber having a ...
Hein, L. A., Myers, W. N.
core   +1 more source

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

Advanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro, Telmo Lopes, André F. Silva, Carmel Majidi, Mahmoud Tavakoli   +4 more
wiley   +1 more source