Results 11 to 20 of about 8,424 (268)

Hydraulic Device for Simulation of Pressure Shocks [PDF]

open access: yesActa Technologica Agriculturae, 2014
This work is focused on the design of a hydraulic device on which simulations of pressure shocks can be performed. The hydraulic device was constructed to allow simulations of pressure shocks transferred directly in operating conditions because ...
Lindák Stanislav   +4 more
doaj   +2 more sources

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

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   +3 more sources

Eigenfrequency of Hydraulic Systems of Loading Device [PDF]

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

Evaluating the relationship of parameters hydraulic impact device and its drive [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2020
The article deals with some questions about the influence of drive parameters on the characteristics of hydraulic shock devices, noted during the analysis of the results of mathematical modeling. Using mathematical modeling, numerical experiments were
Volkov N.N.   +4 more
doaj   +3 more sources

Characterization of Hydraulic Power in Free-Stream Installations [PDF]

open access: yesInternational Journal of Rotating Machinery, 2017
The performance of open-channel hydropower devices can be optimized by maximizing the product of their load, hydraulic, and generator efficiencies. The maximum hydraulic power theoretically available must be defined according to the operational scenario ...
Olivier Cleynen   +2 more
doaj   +2 more sources

OPTIMAL SYNTHESIS OF DRIVE SWING CONNECTIONS OF MOBILE CRANES HYDRAULIC MANIPULATING SYSTEMS [PDF]

open access: yesЗаписки Горного института, 2018
The design, operation features and the optimal design method for the drive swing connections are considered. These are proposed as an alternative design variant of the articulation of adjacent links of hydraulic manipulation systems of mobile boom cranes
A. V. Lagerev, I. A. Lagerev
doaj   +3 more sources

Innovative Implantable Left Ventricular Assist Device—Performance under Various Resistances and Operating Frequency Conditions [PDF]

open access: yesApplied Sciences, 2023
This paper presents the operation of an innovative left ventricular assist device under various resistances and operating frequencies. The operating principle of the device is based on pulsatile blood flow, which is forced by a suction–discharge device ...
Ryszard Jasinski   +3 more
doaj   +2 more sources

Design of a Hydraulic Motor System Driven by Compressed Air [PDF]

open access: yesEnergies, 2013
This paper presents the design of a highly efficient pneumatic motor system. The air engine is currently the most generally used device to convert potential energy of compressed air into mechanical energy.
Jyun-Jhe Yu, Dein Shaw, Cheng Chieh
doaj   +2 more sources

Linear Speed Regulation Design of Three-platform Operating Device Based on PWM Control for Catenary Overhaul Vehicle [PDF]

open access: yesKongzhi Yu Xinxi Jishu, 2019
In view of the defect that the existing imported three-platform operation device of DPT catenary overhaul vehicle can only operate at constant speed, it adopted PWM control technology to develop a domestic self-developed system with adjustable operation ...
NIU Xuexin   +3 more
doaj   +2 more sources

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

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

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