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Wyszukujesz frazę "pneumatic components" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Condition-Based Preventive Maintenance of Machine Tools
Autorzy:
Neugebauer, R.
Fischer, J.
Powiązania:
https://bibliotekanauki.pl/articles/971213.pdf
Data publikacji:
2009
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
condition monitoring at machine tools
diagnostic parameters
main spindle
axis drives
hydraulic components
pneumatic components
Opis:
Machine tools are expected to be highly available. Unintended failure incurs high costs for repairs and through production losses. Maintenance is a major cost factor and is still mostly reactive today, as a result of failures. Maintenance plans by manufacturers that require preventive maintenance based on running hours are often not implemented consistently. It would be ideal to perform condition-dependent preventive maintenance of the most critical and cost-intensive assemblies of a machine tool. This would make it possible to move repair times into non-productive periods and to procure any spare parts at the right time. Eventually, this would lead to cost savings. This article describes the design of a condition monitoring system for machine tools and shows ways of monitoring the most critical machine tool assemblies.
Źródło:
Journal of Machine Engineering; 2009, 9, 3; 64-76
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Frequency Analysis of Noise Generated by Pneumatic Wheels
Autorzy:
Warczek, J.
Burdzik, R.
Konieczny, Ł.
Siwiec, G.
Powiązania:
https://bibliotekanauki.pl/articles/176356.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
noise of pneumatic tire wheels
analysis of the frequency components of noise
station for testing tires
Opis:
The dominant sources of traffic noise, which are linked directly to the vehicle, are dependent on the speed. In terms of speed of 50–120 km/h the dominant source of noise is pneumatic wheels. The aim of the research was chosen to develop a method and experimental determination of the dominant frequency components of noise generated by the car tire. For the purpose of the study and on the basis of the analysis of the source data it was assumed that there is a relationship between the vibration of the tread elements and emitted noise, especially for low and medium frequencies. Thus, the target was set on the basis of the own method of research in the built measuring station. Based on the survey and the obtained results it can be stated that in the spectrum of the noise emitted by the tires the frequency components are dominant. Non-directional tire structure includes more frequency components which at the speed adopted in the studies are located at a greater frequency range than it is for the directional tire. In the case of a tire with a directional tread, acoustic emission energy is more associated with specific frequency components. The developed method provides results independent from the influence of the type of road surface on the acoustic emission while driving.
Źródło:
Archives of Acoustics; 2017, 42, 3; 459-467
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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