Warianty tytułu
Języki publikacji
Abstrakty
A correctly designed machine is characteristic of low vibration values. However wear processes occur during its operation. They are accompanied by a lack of balance of its rotating parts and elements, which results in non-coaxiality of shafts. For this reason energy and dynamic load resulting from machine vibrations grows. In this case cause and effect are mutually connected by feedback, that inevitably leads to occurrence of a failure. This paper presents results of investigations carried out on the basis of vibration analysis of propulsion systems installed on 207P minesweepers. In view of specific features of their operation it is very important to ensure high level of reliability for them. For this reason was done an attempt to develop a method intended for identifying non-coaxiality of shaft line systems of engines propelling the ships. 16 characteristic features of recorded vibration signals were selected. As any of them has not satisfied criteria assigned to features which unambiguously determine state of reliability of shaft line systems, the investigations have been continued and as a result a novel method for non-coaxiality identification was proposed. The method consists in determining unserviceability clusters and assumes that characteristic features are of a concentrated character. This way a non-coaxiality of main engine shaft lines of 207P minesweepers could be detected. This paper presents the proposed method and results of its application to the case in question
Słowa kluczowe
Wydawca
Czasopismo
Rocznik
Tom
Numer
Opis fizyczny
p.65-71,fig.,ref.
Twórcy
autor
- Mechanical Electrical Faculty, Polish Naval Academy, 69 Smidowicza St., 81-103 Gdynia, Poland
autor
autor
- Faculty of Mechanical Engineering, University of Science and Technology, 7 Prof.Kaliskiego Ave., 85-796 Bydgoszcz, Poland
autor
- Department of Thermal Technology, University of Technology and Humanities, 29 Malczewskiego St., 26-600 Radom, Poland
Bibliografia
- 1. Bielawski P.: Diagnostics of marine propeller shafts. Journal of Polish CIMAC Vol. 6 No. 2, 2011, pp.31-40.
- 2. Cempel Cz.: Vibroacoustic diagnostics of machines (in Polish). PWN, Warszawa, 1989.
- 3. Charchalis A., Grządziela A.: Diagnosing the shafting of alignment by means vibration measurement. ICSV Congress Garmisch – Partenkirchen, 2000.
- 4. Dwojak J., Rzepiela M.: Vibration diagnostics of machines and devices ( in Polish). Edition II. Biuro Gamma, Warszawa, 2005.
- 5. Girtler J.: The semi-Markov model of the process of appearance of sea-going ship propulsion system ability and inability states in application to determining the reliablity of these systems. Polish Maritime Research 4(80) 2013 Vol. 20; pp. 18-24.
- 6. Górniewicz I., Roman S.: Mathematical analysis for physicists ( in Polish). Uniwersytet Mikołaja Kopernika, Toruń, 2000.
- 7. Grządziela A., Muślewski Ł.: High quality simulation of the effects of underwater detonation impact. Journal of Vibroengineering, March 2013, Volume 15, Issue 1.
- 8. Gurr C., Rulfs H.: Influence of transient operating conditions on propeller shaft bearings. Journal of Marine Engineering and Technology, No. 12/2008, pp. 3-7.
- 9. Izydorczyk J., Pionka G., Tyma G.: Theory of signals . Introduction ( in Polish). 2nd edition - corrected and amended, HELION, Gliwice, 2006.
- 10. Jarysz-Kamińska E.: Sighting through as part of shaft alignment procedure. Diagnostyka 4(56) 2010, pp. 65-68.
- 11. Łączkowski R.: Vibroacoustics of machines and devices (in Polish). WNT, Warszawa, 1983.
- 12. Łukasiewicz M., Kałaczyński T., Musiał J., Shalapko J. I., Diagnostics of buggy vehicle transmission gearbox technical state based on modal vibrations. Journal of Vibroengineering Vol. 16, Issue 6/2014:, pp. 3137-3145.
- 13. Murawski L.: Identification of shaft line alignment with insufficient data availability. Polish Maritime Research 1/2009, pp.35-42.
- 14. Muślewski Ł.: Evaluation Method of Transport Systems Operation Quality. Polish Journal of Environmental Studies. Vol. 18, No. 2A, Hard Olsztyn, 2009.
- 15. Polish branch standard NO-20-A500-3.
- 16. Pająk M.: The technical states’ space in the modeling process of operation tasks of a complex technical system. Maintenance Problems, 1/2014, ITEe - PIB, Radom 2014.
- 17. Polish standard PN ISO 10816-1.
- 18. Stefański T.: Theory of steering. Vol. II. Discrete nonlinear systems, stochastic processes , static and dynamic optimization (in Polish). Kielce University of Technology, Kielce, 2001.
- 19. Szabatin J.: Signal theory fundamentals (in Polish). WKŁ, Warszawa, 2007.
- 20. Szymaniec S.: Diagnostics of wiring insulation state and bearing state of squirrel-cage induction motors in industrial operation conditions (in Polish). Technical University in Opole 2006, Opole.
- 21. www.mw.mil.pl – 2014.11.03 20:13
- 22. Zawilak J., Bialik J.: Natural vibrations of two-speed synchronic motor construction (in Polish). Problemy eksploatacji maszyn i napędów elektrycznych ( Problems in operation of machines and electric drives) , PEMINE, Rytro, 2008.
- 23. Zieliński T. P.: Digital transformation of signals. From theory to implementation (in Polish). WKŁ, Warszawa, 2009.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
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