Wyszukiwarka
Investigation of the dynamic behaviour of the vertical rotor of a refrigeration compressor supported by foil bearings
Abstrakt
This experimental study examines the dynamic behaviour of an innovative refrigeration compressor, whose rotor, operating in a vertical position, is supported by foil bearings. The bearing system eliminates the need for external lubrication and demonstrates a high load capacity and rotational speeds of up to 120,000 rpm. The novelty of this solution lies in the rotor’s vertical orientation, which introduces unique dynamic challenges. Numerical analyses, including modal and forced vibration studies, identified critical frequencies at 181 Hz, 204 Hz, and 283 Hz, closely matching the experimental results, with differences not exceeding 10%. Experimental tests confirmed stable rotor operation within the range of 60,000–120,000 rpm, with vibration amplitudes of the rotor journals not exceeding 0.028 mm in the critical operating range. Furthermore, misalignments in the bearing journals were observed and attributed to variations in lubrication clearance and foil deflections. The findings demonstrate the feasibility of foil bearings in vertically oriented high-speed compressors and provide novel insights into their dynamic behaviour. During the experimental study, irregular multi-loop vibration trajectories of the bearing journals were observed, necessitating the use of the differential method to determine their direction. This study advances oil-free compressor technology and offers guidance for future design and optimisation.
Cytowania
-
0
CrossRef
-
0
Web of Science
-
0
Scopus
Autorzy (3)
-
Paweł Bagiński dr inż.
- IMP PAN
-
Artur Andrearczyk
- IMP PAN
Cytuj jako
Pełna treść
- Wersja publikacji
- Accepted albo Published Version
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.renene.2025.123505
- Licencja
-
otwiera się w nowej karcie
Słowa kluczowe
Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
-
RENEWABLE ENERGY
nr 253,
ISSN: 0960-1481 - Język:
- angielski
- Rok wydania:
- 2025
- Opis bibliograficzny:
- Bagiński P., Andrearczyk A., Ziółkowski P.: Investigation of the dynamic behaviour of the vertical rotor of a refrigeration compressor supported by foil bearings// RENEWABLE ENERGY -Vol. 253, (2025), s.123505-
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.renene.2025.123505
- Źródła finansowania:
-
- IDUB
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 0 razy
Publikacje, które mogą cię zainteresować
Research on Linear Actuators for Active Foil Bearings
- Ł. Breńkacz,
- R. Kędra,
- W. Janicki
- + 4 autorów
Theoretical analysis and experimental tests of tilting pad journal bearings with shoes made of polymer material and low-boiling liquid lubrication
- G. Żywica,
- A. Olszewski,
- P. Bagiński
- + 3 autorów
The dynamic performance analysis of the Micro-turbine's rotor supparted on slide and roling element bearings
- J. Kiciński,
- G. Żywica,
- P. Bagiński