Results 1 to 10 of about 6,319 (133)
Nihon 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
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Investigation on braking characteristics of dashpot for hydraulic operating circuit breaker
Nihon 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
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Joint simulation and experimental verification of electromechanical-hydraulic of hydraulic excavator working device [PDF]
Scientific ReportsTo 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
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Design of a laboratory hydraulic device for testing of hydraulic pumps
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2013 The present contribution deals with solves problem of research of testing device to monitor of hydrostatic pumps durability about dynamic loading under laboratory conditions.
Pavel Máchal +6 more
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Nihon Kikai Gakkai ronbunshu, 2015 A hydraulic operation stabilizing system was developed for a hydraulic operating mechanism of a gas circuit breaker (GCB). Air bubbles and cavities, created in hydraulic fluid by the movement of the operating mechanism, have an effect on the movement of ...
Tohru YAMASHITA +4 more
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Nihon Kikai Gakkai ronbunshu, 2016 Stability of a hydraulic operation stabilization system during valve returning motion was investigated by the measurement and numerical analysis of the hydraulic circuit.
Tohru YAMASHITA +4 more
doaj +3 more sources
Nihon Kikai Gakkai ronbunshu, 2015 Numerical simulation for a hydraulic operation stabilizing system of gas circuit breaker (GCB) driven by a hydraulic operating mechanism is treated . Valve collision and hydraulic column separation, created in hydraulic fluid by the movement of valves ...
Tohru YAMASHITA +4 more
doaj +3 more sources
Incorporation of Fluid Compressibility into the Calculation of the Stationary Mode of Operation of a Hydraulic Device at High Fluid Pressures [PDF]
Nelineinaya 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
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Research on transmission control method of tension tower hydraulic tension device based on PLC
Journal 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
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Designing Hydraulic Impact Devices for Low-Temperature Operation
Journal 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
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