Results 11 to 20 of about 7,758 (258)

Research on variable mass control of series manipulator based on linear active disturbance rejection control

open access: yesMeasurement + Control, 2020
The series manipulator of the demolition robot has different working postures and large self-weight so that the bearing mass of the joint hydraulic cylinder is a variable value, and the change of mass affects the dynamic characteristics of the valve ...
Jianzhong Huang, Yuwan Cen
doaj   +1 more source

Synchronization Control Algorithm of Double-Cylinder Forging Hydraulic Press Based on Fuzzy Neural Network

open access: yesAlgorithms, 2019
In order to solve the poor control accuracy problem of the traditional synchronous control algorithm for a double-cylinder forging hydraulic press, a synchronous control algorithm for double-cylinder forging hydraulic press based on a fuzzy neural ...
Xiaodan Xu, Zhifeng Bai, Yuanyuan Shao
doaj   +1 more source

Control of an Energy Efficient Hydraulic Cylinder Drive with Multiple Pressure Lines [PDF]

open access: yesModeling, Identification and Control, 2018
This paper concerns a novel energy efficient hydraulic cylinder drive concept, consisting of three pressure lines used to supply a hydraulic cylinder(s).
Niels Henrik Pedersen   +4 more
doaj   +1 more source

Research on a kind of self-compensation variable-clearance sealing hydraulic cylinder with a thin shell structure

open access: yesAIP Advances, 2018
Hydraulic cylinder is the most typical hydraulic actuator. The traditional sealing ring used in hydraulic cylinder produces the friction which greatly affects the high speed performance of the hydraulic cylinder.
Yuanhui Li   +3 more
doaj   +1 more source

Leakage fault diagnosis method of aircraft landing gear hydraulic cylinder based on wavelet packet

open access: yesThe Journal of Engineering, 2018
The main executive element of the retractable landing gear is the hydraulic cylinder, and its common fault is caused by the leakage of the hydraulic cylinder.
Jie Tang   +4 more
doaj   +1 more source

Design and Experimental Verification of Pressurized Cylinders in Hydraulic Rubber Hose Pressure Washers

open access: yesActuators, 2021
Hydraulic rubber hoses are subject to great hydraulic impact during the actual working process, which causes a great potential safety hazard. Therefore, it is necessary to carry out pressure tests on hose assemblies to ensure its quality, so providing a ...
Xiaoxiao Niu   +3 more
doaj   +1 more source

Extended Analytic Linear Model of Hydraulic Cylinder With Respect Different Piston Areas and Volumes [PDF]

open access: yesTransactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2009
Standard analytic linear model of hydraulic cylinder usually comes from assumptions of identical action piston areas on both sides of hydraulic cylinder (double piston rod) and suitable operation point, which is usually chosen in the middle of piston. By
Petr KOŇAŘÍK
doaj  

Design of internal measuring system of hydraulic cylinder stroke

open access: yesGong-kuang zidonghua, 2015
In view of problems of large space occupation and complex structure existed in current internal measuring method of hydraulic cylinder stroke, internal measuring systems of hydraulic cylinder stroke which are respectively based on optical mouse and wheel
WU Laijie   +4 more
doaj   +1 more source

An Analytic Study of the Effect of a Vane on the Hydraulic Field around a Cylinder [PDF]

open access: yesINCAS Bulletin, 2021
The flow pattern around the cylinder body is a very serious problem and this problem may become more serious and sensitive, when we place a vane neighboring to the cylinder.
Rafi M. QASIM, Tahseen Ali JABBAR
doaj   +1 more source

Optimal Control for Hydraulic Cylinder Tracking Displacement of Wave Energy Experimental Platform

open access: yesEnergies, 2020
The wave energy converter captures the wave power by buoy’s heaving motion, transfers it by hydraulic system, and converts it into the electric power by generator.
Wei Zhang   +4 more
doaj   +1 more source

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