Title
The study of the impact of oil type and throttling pressure on the vibrations of a gear pump
Authors
[ 1 ] Instytut Konstrukcji Maszyn, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ 2 ] Instytut Maszyn Roboczych i Pojazdów Samochodowych, Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | [ P ] employee
Scientific discipline (Law 2.0)
[2.7] Civil engineering, geodesy and transport[2.9] Mechanical engineering
Year of publication
2025
Published in
Article type
scientific article
Publication language
english
Keywords
EN
- pump vibrations
- hydraulic pumps
- kinematic forces
- kinematic characteristics of the pump
Abstract
EN The aim of the article is to demonstrate the impact of the type of pumped oil on the values of kinematic excitations. Three groups of oils were examined: engine oils, hydraulic oils, and gear oils. The research methodology focused on measuring the average kinematic excitation and the dynamics of kinematic excitations for a fixed throttling pressure. The analysis of the results showed that the viscosity of the oil (ν) has a significant effect on the average kinematic excitation value (avg. R) in the group of oils intended for internal combustion engines, with p = 0.0285, while the influence of pressure (p) on avg. R was not statistically significant (p = 0.0799). However, for the dynamics of kinematic excitations (ΔR), pressure had a significant impact (p = 0.00001), while viscosity was not significant (p = 0.9490). In the groups of hydraulic and gear oils, none of the examined parameters showed a significant effect on avg. R. Pressure changes were significant only concerning ΔR in these groups. The highest ΔR values occurred at 0 bar pressure, indicating the influence of pressure on changes in kinematic excitations. It was also investigated that differences in the chemical composition of oils, although subtle, affect their physicochemical properties, which are important for cavitation occurrence and vibrations in the pump. Ultimately, selecting the appropriate oil, such as H2, significantly improves pump performance, which is crucial in hydraulic applications where operating pressure ranges from 100 to 300 bar.
Pages (from - to)
142 - 155
License type
CC BY (attribution alone)
Open Access Mode
open journal
Open Access Text Version
final published version
Date of Open Access to the publication
at the time of publication
Full text of article
Access level to full text
public
Ministry points / journal
100
Impact Factor
1 [List 2023]
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