Results 11 to 20 of about 3,191,259 (277)

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

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

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

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

Columnar vortex array in hydraulic turbines and mitigation device [PDF]

open access: yes, 2023
: With increasing climate change concerns and the fast addition of new renewables such as wind and solar power on electrical grids, the operation’s flexibility of hydraulic turbines needs to be expanded.

core   +1 more source

A catalytic air recirculating medical device reduces formaldehyde levels in a simulated operating room environment [PDF]

open access: yes, 2022
Electrosurgery produces formaldehyde. A catalytic material was interfaced with an air recirculation device and tested for formaldehyde removal. When catalyst and activated carbon were in the device, formaldehyde levels were reduced by up to 72% after 1
David L., Kirschman, Gregory, Carroll
core   +1 more source

Analysis of the operating conditions of a hydraulic turbine of the bulb-type [PDF]

open access: yes, 2021
In the last decades we have witnessed a technological advance and the search for 4.0 technologies, in this scenario, one of the most important topics to promote a good performance in the production of equipment is the monitoring of operation through ...
Reis Stein, Cléver   +5 more
core   +1 more source

Utilization of the tractor hydraulic device to operate reciprocating mowers [PDF]

open access: yesJournal of Soil Sciences and Agricultural Engineering, 2019
Due to the ease and excellence of the hydraulic transmission, this research is concerned to transmit power from tractor to a reciprocating mower using a hydraulic cycle. The theoretical consideration and the previous results from different studies were used to determine a suitable of a hydraulic motor, which give a sufficient torque needed to cutting ...
O. Fouda, M. Awad, Y. Yusuf
openaire   +1 more source

Hydraulic and thermal characterization of a family of thermo-hydraulic separators [PDF]

open access: yes, 2020
Thermal-hydraulic separators (or hydraulic dispatchers) are flow collectors of relatively small size, connecting two or more hydraulic networks; they are mainly used to reduce the hydraulic interference of primary (e.g.
Piller, Marzio   +4 more
core   +1 more source

Modeling operation of sliding valve distribution in hydraulic percussion device with adjustable blow energy

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract The authors discuss the simulation model of a sliding valve distributor enabling adjustment of capabilities of hydraulic percussion devices. The paper presents the theoretical oscillograms of the valve characteristics and the plots of change in the valve mode versus the valve parameters.
LV Gorodilov, AI Pershin
openaire   +1 more source

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