Results 81 to 90 of about 638,968 (154)

The technical roadmap of the development of variable pitch propeller governors for turboprop

Hangkong gongcheng jinzhan
The variable pitch governor controls the propeller to maintain a constant speed，so that the propeller can be energy-saving and efficient in a wider range of flight envelope.
CHEN Tingting, GUO Yong, PAN Zhongjian
doaj   +1 more source

A rotary valve and its orifice design for high-frequency asymmetric vibration waveforms with electro-hydraulic vibrator

Scientific Reports
High-frequency asymmetric vibration waveforms are often required in engineering practice. However, when asymmetric vibration waveforms are needed, conventional electro-hydraulic vibrators can only achieve low frequencies, due to the limitations imposed ...
He Wang, Zupan Shi, Zilong Liu
doaj   +1 more source

LPV Model-based Robust Controller Design of Electro-hydraulic Servo Systems [PDF]

, 2011
In this paper, a Lyapunov-based control algorithm is developed for position tracking control of a class of electro-hydraulic servo systems driven by double-rod hydraulic actuators.
Yuanchun Ding, Tang, Minkang, Minkang Tang, Ding, Yuanchun, Weng, Falu, Falu Weng   +5 more
core   +1 more source

A Novel Composite Control Algorithm for Restraining Nonlinear Superfluous Forces

IEEE Access, 2019
A novel composite control algorithm is proposed to restrain nonlinear superfluous forces of a dual-channel load simulator. The dual-channel load simulator is utilized to measure the dynamic characteristic of an integrated hydraulic driving unit.
Lingxiao Quan, Yaoyao Miao, Changhong Guo, Qin Zhang   +3 more
doaj   +1 more source

Displacement comparison of hydraulic servo-motor when servo valve is stuck.

, 2023
Displacement comparison of hydraulic servo-motor when servo valve is stuck.
Qing Li (84975), Ling Zhong (209116)
core   +1 more source

Brain-computer interface for control of electro-hydraulic servo drive [PDF]

, 2018
The aim of the study was to perform bioelectric signal analysis focusing on its applicability to control of the electro-hydraulic servo drive. The natural bioelectric signals generated by brain, facial muscles and eye muscles read by the NIA (Neural ...
Dindorf, R., Wos, P.
core   +1 more source

Neural Network Identification and Controller on Electro-hydraulic Servo System

Journal of Harbin University of Science and Technology, 2017
The neural networks system identification was used in nonlinear model on valve-control-cylinder electro-hydraulic position servo system. The three layers BP neural network weights and threshold were optimized using LM genetic algorithm，the relationship ...
HAN Gui-hua, WANG Peng-fei, ZHANG Ci-jun
doaj   +1 more source

Modelling and LPV control of an electro-hydraulic servo system [PDF]

, 2006
This paper aims to show the modelling and control of an hydraulic servo system, targeting at frequency domain based controller design and the implementation of a LPV controller.
Post, WJAEM Wil, Steinbuch, M Maarten, Steinbuch, M., Teerhuis, AP Arjan, Post, W.J.A.E.M., Teerhuis, A.P., Naus, GJL Gerrit, Wijnheijmer, F.P., Naus, G.J.L., Wijnheijmer, FP, Steinbuch, M.; id_orcid   +10 more
core   +2 more sources

A backstepping sliding mode control algorithm of electro-hydraulic position servo system of valve-controlled symmetric cylinder based on extended state observer

Mechanics & Industry
Electro-hydraulic position servo system of valve-controlled symmetrical cylinder (EPSSVCS) is a very important and widely used electro-hydraulic servo system, the performance of which is often affected by friction nonlinearity and external random ...
Chen Hongsheng
doaj   +1 more source

Effect of Slide Valve Gap Surface Roughness on Particle Transport Properties

Aerospace
Fuel electro-hydraulic servo valves are core components in the fuel control system of aero-engines, and their performance directly affects thrust regulation and power output precision.
Jin Zhang, Ranheng Du, Pengpeng Dong, Kuohang Zhang, Shengrong Wang, Ying Li, Kuo Zhang   +6 more
doaj   +1 more source