Temat: hydraulic pump - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Diagnostics of Transient States in Hydraulic Pump System with Short Time Fourier Transform
Autorzy:: Przystupa, Krzysztof
Ambrożkiewicz, Bartłomiej
Litak, Grzegorz
Powiązania:: https://bibliotekanauki.pl/articles/102319.pdf
Data publikacji:: 2020
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: hydraulic pump system
FFT
STFT
diagnostics
układ pomp hydraulicznych
diagnostyka
Opis:: In hydraulic pump system various states can occur caused by mechanical and physical phenomena. To detect them, the Short Time Fourier Transform (STFT) is applied. This paper will consider an application of STFT to monitor and evaluate hydraulic pump system operation in different states of operation. For measurements of pressure and flow changes in pump, hydraulic tester and Data AcQuisition (DAQ) card was used for evaluation of qualitative and quantitative changes in the system. Results of hydraulic pump’s operation will be shown on Fast Fourier Transform (FFT) charts and STFT spectrograms plots.
Źródło:: Advances in Science and Technology. Research Journal; 2020, 14, 1; 178-183
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Dynamic Processes Modeling in a Peristaltic Pump with a Hydraulic Drive for the Bingham Fluid
Autorzy:: Shatokhin, Vladimir M.
Ivanchuk, Yaroslav V.
Dvirna, Olha
Veselovskaya, Natalia
Jurczak, Wojciech
Powiązania:: https://bibliotekanauki.pl/articles/2201848.pdf
Data publikacji:: 2022
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: peristaltic pump
dynamic process simulation
Bingham fluid
hydraulic drive
pump rotor
Opis:: At present peristaltic pumps are widely used in many branches of industry and national economy. Simplicity of construction, processability and possibility of pumping liquids with big quantity of solid particles are the main advantages while using peristaltic pumps. Therefore development of methods of rational choice of parameters at designing of peristaltic pumps is the actual problem. To develop universal mathematical models of dynamic processes in peristaltic pumps for definition of rational technical parameters. In dynamic processes we propose to use differential equations of motion in the Lagrange form, where the angle of rotation of the pump rotor is taken as a universal coordinate. Mathematical model of dynamic processes in peristaltic pump with hydraulic drive has been created on the base of differential equation. The function of resistance forces caused by gravity forces of mixture particles in the hose reel has been determined. On the basis of the non-linear model of the resistance forces to the flow of the fluid Bingham method of constructing the dependence of the pressure drop on the angular velocity of the rotor to determine the resistance forces to the flow of the fluid has been proposed. The result of dynamic processes simulation is the determination of interrelationship of technological parameters of the device functioning: the velocity of the medium and pump performance is increasing at reducing the length of the diverting hose and reducing the height of its rise; a significant influence on the average speed has plastic viscosity of the environment; a significant change in the yield strength has an insignificant impact on the speed.
Źródło:: Advances in Science and Technology. Research Journal; 2022, 16, 4; 256--269
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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