Effects Of Underwater Explosion On Minehunters Shafts Lines

• Autorzy: Grządziela A.
• Języki publikacji: EN

Abstrakty

EN

Ships’ propulsion plant usually works in a hard environment caused by static forces and permanent dynamic loads. Exciding of tolerated values of shaft alignments causes a damage of radial and thrust bearings in relative short time. Modeling of dynamical reactions could bring information to the designer for recognizing the level of hazard for propulsion system. A paper presents a proposal of identification of a degree of hazard to ship shaft line due to forces of underwater explosion. A theoretical analysis was made of influence of changes in co-axiality of shafts resulting from elastic deformations of hull structure in vicinity of shaft bearing foundations. The main problem of naval vessels is a lack of dynamical requirements of stiffness of the hull. Modelled signals were recognized within sensitive symptoms of two sub models: model of propulsion system and model of shafts misalignment. Both sub models allow testing forces and their responses in vibration spectrum using SIMULINK software.

Słowa kluczowe

EN

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

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2008
• Tom: Vol. 3, no 2
• Strony: 9--13
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Grządziela A.

• Naval University of Gdynia, Mechanical – Electrical Faculty uL. Śmidowicza 69, 81-103 Gdynia, Poland, tel. [phone],

Bibliografia

• [1] Cempel, Cz., Tomaszewski F. (Ed.), Diagnostics of machines. General principles. Examples of applications, Publ. MCNEM, Radom 1992.
• [2] Cole, R. H., Underwater Explosions, Princeton University Press, Princeton 1948.
• [3] Cudny, K., Powierża Z., Selected problems of shock resistance of ships (in Polish), Publ. Polish Naval University, Gdynia 1987.
• [4] Dąbrowski, Z., Machine shafts (in Polish), State Scientific Publishing House (PWN), Warszawa 1999.
• [5] Dietrich, I., Kocańda, S., Korewa, W., Essentials of machine building (in Polish), Scientific Technical Publishing House (WNT), Warszawa 1974.