Results 1 to 10 of about 465,570 (216)

Investigation on braking characteristics of dashpot for hydraulic operating circuit breaker

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Braking characteristics of piston-dashpot system in a hydraulic operating device for circuit breaker was investigated by the measurement and numerical analysis.
Tohru YAMASHITA   +3 more
doaj   +2 more sources

Pressure, Flow Rate and Operating Speed Characteristics of a Continuous Flow Left Ventricular Assist Device During Varying Speed Support

open access: yesIEEE Access, 2020
Hydraulic performance of Continuous Flow Left Ventricular Assist Devices depends on their pressure head and flow rate relations. Hydraulic characteristics of these devices are expressed by pressure head and flow rate loops in a pulsatile environment as ...
Selim Bozkurt
doaj   +2 more sources

Joint simulation and experimental verification of electromechanical-hydraulic of hydraulic excavator working device [PDF]

open access: yesScientific Reports
To rigorously evaluate the electromechanical-hydraulic coupling performance of a hydraulic excavator’s working device under authentic operating loads, this study presents a field-data-driven co-simulation framework applied to a 20-ton backhoe hydraulic ...
Mei Xin   +6 more
doaj   +2 more sources

A study on stabilization of operation time for hydraulic operating circuit breaker (Investigation of synchronous / sequential operation system of two high speed hydraulic operating devices)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Two driving systems in which a circuit breaker is driven synchronously and sequentially by two devices which are connected with relatively long hydraulic pipes were investigated.
Tohru YAMASHITA   +4 more
doaj   +3 more sources

Eigenfrequency of Hydraulic Systems of Loading Device

open access: yesEPJ Web of Conferences, 2016
Eigenfrequency of hydraulic systems belongs to important dynamic quantities. If the excitation frequency of a given hydraulic system is equal to the system eigenfrequency, high-amplitude pressure and flow pulsations can arise. It has a negative influence
Vašina Martin   +2 more
doaj   +2 more sources

Free Vibration Analysis of Hydraulic Quick Couplings Considering Fluid–Structure Interaction Characteristics

open access: yesActuators
As an important component of the automatic hydraulic quick coupling device (AHQCD) on rescue vehicles, the hydraulic quick couplings (HQCs) are used to rapidly dock hydraulic lines and transport fluid while changing and operating hydraulic working tools.
Yuchao Liu   +5 more
doaj   +2 more sources

Designing Hydraulic Impact Devices for Low-Temperature Operation

open access: yesJournal of Physics: Conference Series, 2021
Abstract The paper is devoted to the results of theoretical studying the hydraulic jackhammer operation under various temperature conditions and practical recommendations for their design and operation, considering the temperature factor.
R A Redelin, Y N Kamanin, A V Panichkin
openaire   +1 more source

Energy parameters of a hybrid counter-rotor hydraulic unit operating on the basis of solar and hydraulic energy

open access: yesE3S Web of Conferences, 2023
This article analyzes the prospects for using a combined hybrid solar photovoltaic and hydroelectric device and presents their characteristics and energy parameters. In particular, since the hydroelectric device consists of a counter-rotor hydraulic unit,
Oybek Bozarov   +3 more
semanticscholar   +1 more source

Research on transmission control method of tension tower hydraulic tension device based on PLC

open access: yesJournal of Applied Science and Engineering, 2023
Using the traditional method to control the transmission process of the tension tower hydraulic tightening device, there is a problem of slow speed step response in the range of device operating speed from 12km/h to 32km/h.
Jinghui Zhang   +3 more
doaj   +1 more source

Incorporation of Fluid Compressibility into the Calculation of the Stationary Mode of Operation of a Hydraulic Device at High Fluid Pressures [PDF]

open access: yesNelineinaya Dinamika, 2021
This paper is concerned with assessing the correctness of applying various mathematical models for the calculation of the hydroshock phenomena in technical devices for modes close to critical parameters of the fluid. We study the applicability limits of the equation of state for an incompressible fluid (the assumption of constancy of the medium density)
Raeder, T.   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy