An analysis of possible assessment of hazards to ship shaft line, resulting from impulse load

• Autorzy: Grządziela A.
• Języki publikacji: EN

Abstrakty

EN

This paper presents a proposal of identification of a degree of hazard to ship shaft line due to impulse load caused by underwater explosion. A theoretical analysis was made of influence of changes in co-axiality of shafts on second-kind critical velocities resulting from elastic deformations of hull structure in vicinity of shaft bearing foundations. Results are presented of pilotage tests of underwater explosion performed on training water area. A preliminary mathematical model of underwater explosion is given with taking into account mass of explosives and distance from the tested object. The drawn conclusions show a way of identification of hazard to shaft line by using spectral analysis and time - runs of vibration signals recorded at shaft bearings.

Słowa kluczowe

EN

ship shaft lines; technical diagnostics; modelling; vibrations; underwater explosion

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2007
• Tom: nr 3
• Strony: 12--20
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Grządziela A.

• Mechanic-Electric Faculty, Polish Naval University Śmidowicza 69 81-103 Gdynia, POLAND,

Bibliografia

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