Modeling impact resistance of the ships hull

• Autorzy: Grządziela A. , Jurczak W.
• Języki publikacji: EN

Abstrakty

EN

Ships’ hull usually works in a hard environment caused by static forces and permanent dynamic loads. Modeling of dynamical reactions could bring information to the designer for recognizing the level of hazard for hull structure and propulsion system. A paper presents a proposal of identification of a degree of hazard the ships hull forced from underwater explosion. A theoretical analysis was made of influence of changes 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 and hull structure were recognized within sensitive symptoms of three sub models: model of hull structure, model of impact and model of propulsion system. All 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: Wydawnictwo Naukowe Akademii Morskiej w Szczecinie
• Czasopismo: Zeszyty Naukowe Akademii Morskiej w Szczecinie
• Rocznik: 2015
• Tom: nr 41 (113)
• Strony: 61--64
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Grządziela A.

• Institute of Mechanical Engineering and Machine Building of Polish Naval Academy Faculty of Electrical and Machine Engineering 81-103 Gdynia, ul. Śmidowicza 69

autor

Jurczak W.

• Institute of Mechanical Engineering and Machine Building of Polish Naval Academy Faculty of Electrical and Machine Engineering 81-103 Gdynia, ul. Śmidowicza 69

Bibliografia

• 1. CUDNY, K., POWIERŻA Z.: Selected problems of shock resistance of ships (in Polish), Publ. Polish Naval University, Gdynia 1987.
• 2. COLE R.H.: Underwater Explosions, Princeton University Press, Princeton 1948. Others
• 3. CEMPEL CZ., TOMASZEWSKI F. (ED.): Diagnostics of machines. General principles. Examples of applications, Publ. MCNEM, Radom 1992.
• 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.