Autor: Barczewski, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A small-size stand for vibroacoustic and durability testing of rolling bearings
Autorzy:: Wróbel, M.
Barczewski, R.
Powiązania:: https://bibliotekanauki.pl/articles/127755.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: vibroacoustics
rolling bearings
durability test
testing stand
wibroakustyka
łożyska toczne
badanie trwałości
stanowisko badawcze
Opis:: A small-size stand for vibroacoustic and durability testing of rolling bearings is presented in this paper. Main purposes and motivations for building this stand were not only to assist research and development works but also to familiarize students with techniques and methods of rolling bearings diagnosing as well as to improve their skills of assessment of rolling bearings technical condition. The project assumptions of the stand, mechanical construction and architecture of data acquisition and analysis system (hardware and software) are described in this paper. Finally there are conclusions about stand’s capabilities included.
Źródło:: Vibrations in Physical Systems; 2017, 28; 1-8
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: The influence of supply options of an asynchronous electric motor on emitted noise
Autorzy:: Barczewski, R.
Jakubek, B.
Wróbel, M.
Powiązania:: https://bibliotekanauki.pl/articles/127811.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: asynchronous electric motor
noise
motor connection
elektryczny silnik asynchroniczny
hałas
podłączenie silnika
Opis:: A comparison of the noise emitted by an asynchronous electric motor for various supply options has been presented in this paper. The star connection, one phase connection (with a run capacitor) and the use of an inverter have been taken under consideration. The test results show the effect of supply options of the electric motor on the sound power level, the shape of the noise spectra and directivity changes of the sound emitted by the tested asynchronous electric motor.
Źródło:: Vibrations in Physical Systems; 2018, 29; 1-8
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: The influence of the lubrication on the vibroacoustic signal generated by rolling bearings
Autorzy:: Jakubek, B.
Barczewski, R.
Jakubowicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/128154.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: tapered roller bearings
lubrication
post-production diagnostics
łożysko stożkowe
smarowanie
diagnostyka poprodukcyjna
Opis:: Long-life and failure-free operation of rolling bearings depends on the proper lubrication. Additionally lubrication reduces vibration and noise generated by the operating bearing. However, from the point of view of the post-production diagnostics, lubrication can lead to undesirable masking of damage and manufacturing defects. This article presents the comparison of parameters of vibroacoustic signals generated by tapered roller bearings under different lubrication conditions. The influence of the lubricant on the form of vibroacoustic signals in both amplitude and frequency terms was determined. The premises on the choice of the lubricant for the post-production diagnostics of rolling bearings have also been specified.
Źródło:: Vibrations in Physical Systems; 2017, 28; 1-9
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: The influence of vibrations generated by handheld household appliances on temperature changes of user hands
Autorzy:: Wojsznis, M.
Mazurek, I.
Różański, L.
Barczewski, R.
Powiązania:: https://bibliotekanauki.pl/articles/128172.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:: vibrations
thermography
household appliances
drgania
termografia
sprzęt AGD
Opis:: The paper presents an analysis of influence of vibrations generated by small hand-held household appliances on temperature changes of hands. To visualize thermal changes of operators’ hands a thermographic camera was used. During the tests values of acceleration of device handle vibrations at points of contact with operators’ hands were recorded simultaneously. It has been observed that even during short periods of work the hand temperature changes significantly. The biggest recorded change was equal to 3°C. The tests have shown that the influence of vibrations is in this case sensed more strongly particularly by fingers and a wrist. The analysis of results has shown purposefulness of pointing out synergistic influence of vibrations and thermal changes caused by commonly available appliances on a human body.
Źródło:: Vibrations in Physical Systems; 2018, 29; 1-8
0860-6897
Pojawia się w:: Vibrations in Physical Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

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