Results 1 to 10 of about 19,694 (262)

Use of the K-Nearest Neighbour Classifier in Wear Condition Classification of a Positive Displacement Pump [PDF]

open access: yesSensors, 2021
This paper presents a learning system with a K-nearest neighbour classifier to classify the wear condition of a multi-piston positive displacement pump.
Jarosław Konieczny, Jerzy Stojek
doaj   +2 more sources

Applications of a novel reciprocating positive displacement pump in the simulation of pulsatile arterial blood flow [PDF]

open access: yesPLoS ONE, 2022
Pulsatile arterial blood flow plays an important role in vascular system mechanobiology, especially in the study of mechanisms of pathology. Limitations in cost, time, sample size, and control across current in-vitro and in-vivo methods limit future ...
Adam Menkara   +3 more
doaj   +2 more sources

Testing and validation of reciprocating positive displacement pump for benchtop pulsating flow model of cerebrospinal fluid production and other physiologic systems [PDF]

open access: yesPLoS ONE, 2022
Background The flow of physiologic fluids through organs and organs systems is an integral component of their function. The complex fluid dynamics in many organ systems are still not completely understood, and in-vivo measurements of flow rates and ...
Ahmad Faryami   +3 more
doaj   +3 more sources

Investigation of the Internal Displacement Chamber Pressure of a Rotary Vane Pump

open access: yesEnergies, 2020
Low noise emissions of vehicle components are today a quality feature in the automotive sector. In automatic transmissions in particular, the hydraulic pump often contributes significantly to noise, which motivates research to clarify the noise sources ...
Timm Hieronymus   +2 more
doaj   +3 more sources

Numerical Investigation on Pairing Solutions of Non-Positive Displacement Pumps and Internal Gear Pump for High-Speed Design

open access: yesFluids, 2023
Raising the working speed of hydraulic pumps to maximize the efficient matching range of electric motors is one of the possible ways to achieve energy efficiency in electric machinery.
Fei Sun   +3 more
doaj   +3 more sources

Theoretical Analysis of Active Flow Ripple Control in Positive Displacement Pumps

open access: yesEnergies, 2022
Positive displacement machines present a well-known major drawback that is the oscillation in delivered flow rate. This paper presents two active solutions for reducing the flow ripple generated by a pump with an external device actuated by means of a ...
Paolo Casoli   +3 more
doaj   +3 more sources

Lumped parameter model of vane pumps developed in OpenModelica environment [PDF]

open access: yesE3S Web of Conferences, 2021
In this paper, the authors present a 0D fluid dynamic model of a vane pump used to refill tanks with fuel. The model is entirely developed in OpenModelica environment, where the authors have created specific libraries of elements suitable for the ...
Zardin Barbara   +3 more
doaj   +1 more source

Numerical modelling of a non-Newtonian fluid in the twin-screw pump [PDF]

open access: yesEPJ Web of Conferences, 2022
Twin screw pump is a positive displacement pump, which is widely used in numerous type of foodstuff applications. Numerical CFD analysis presented in this paper focuses on the investigation of the influence of the clearances and the non-Newtonian ...
Bojko Marian   +3 more
doaj   +1 more source

Classification of Wear State for a Positive Displacement Pump Using Deep Machine Learning

open access: yesEnergies, 2023
Hydraulic power systems are commonly used in heavy industry (usually highly energy-intensive) and are often associated with high power losses. Designing a suitable system to allow an early assessment of the wear conditions of components in a hydraulic ...
Jarosław Konieczny   +2 more
doaj   +1 more source

One-Dimensional Fluid Dynamic Modeling of a Gas Bladder Hydraulic Damper for Pump Flow Pulsation

open access: yesEnergies, 2023
Positive displacement pumps produce pressure ripple that can be reduced with the attenuation of the generated flow ripple. This paper presents the application of a gas bladder hydraulic damper with the aim of reducing the oscillations of the delivery ...
Paolo Casoli   +2 more
doaj   +1 more source

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