Results 21 to 30 of about 169,803 (308)

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   +1 more source

CFD-Based Physical Failure Modeling of Direct-Drive Electro-Hydraulic Servo Valve Spool and Sleeve

open access: yesSensors, 2022
Direct-drive electro-hydraulic servo valves are used extensively in aerospace, military and control applications, but little research has been conducted on their service life and physical failure wear.
Guoqin Huang   +3 more
doaj   +1 more source

Mathematical model of position hydraulic drive

open access: yesВестник СибАДИ, 2017
The article presents a mathematical model of the position hydraulic drive, including a feedback loop rotary cylinder. A design scheme, compiled on the basis of the concept developed by the hydraulic circuit of hydraulic drive position, as well as the ...
A. V. Zhdanov
doaj   +1 more source

Modeling of working processes in the throttle-adjustable hydraulic drive of manipulation systems with conjoint movement of links during operation of mobile machines [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2019
The article proposes a functional-structural scheme and a mathematical model of working hydrodynamic processes in a throttle-adjustable hydraulic drive of handling systems (cranes-manipulators) of mobile transport-technological machines during the ...
Lagerev A.V., Lagerev I.A.
doaj   +1 more source

Hydraulic shock suppression mechanism of the hydraulic drive

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract Researches show that hydraulic shock provokes premature destruction of hydraulic drive high-pressure hoses and unauthorized emission of working fluid into the atmosphere, resulting in environmental pollution. There are ways to protect the machines hydraulic transmission based on the principle of automatic disconnection from the ...
N A Fomenko   +2 more
openaire   +1 more source

Calculation of design parameters of the bulldozer hydraulic drive [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета
One of the main parameters of the hydraulic drive for moving the working element of road construction machines is the speed of movement of the hydraulic cylinder piston.
Letopolsky A.B., Teterina I.A.
doaj   +1 more source

Volumetric hydraulic drive with series connection of hydraulic actuators

open access: yesIzvestia MGTU MAMI, 2020
The aim of the proposed work is theoretical and experimental studies of the performance of a single-channel hydraulic drive with a series connection of executive hydraulic cylinders and the de-velopment of recommendations for predicting their characteristics.
V.N. Pil'gunov, K.D. Yefremova
openaire   +1 more source

Cad algorithm of the basic parameters of the steering hydraulic drive

open access: yesВестник СибАДИ, 2017
Work of steering hydraulic drive wheel car is considered. The geometric parameters of hydraulic control valve are justified. Hydromotor’s holes is considered in terms of geometric dimensions and hydraulic characteristics.
Yu. E. Ionova
doaj   +1 more source

THE METHOD OF DESIGNING HYDRAULIC DRIVES ON THE EXAMPLE OF A HYDRAULIC DRIVE OF A LIFTING-MAST DEVICE

open access: yes«System analysis and applied information science», 2018
The classical approach to the design of hydraulic drives includes complex calculations and real tests, which is a resource-consuming process. Reduce the cost of design allows the introduction of the development of simulation modeling and CAD / CAM / CAE / PDM automation complexes of the production cycle of enterprises.
S. A. Smirnov, N. A. Gorshkova
openaire   +3 more sources

Improved mathematical model of the hydraulic drive of the garbage truck’s sealing plate mechanism taking into account the wear of its hydraulic cylinder

open access: yesПроблеми трибології
This article is dedicated to the improvement of the mathematical model of the hydraulic drive of the mechanism of the garbage truck’s sealing plate, taking into account the wear of the hydraulic cylinder.
O.V. Bereziuk   +3 more
doaj   +1 more source

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