The initial research on air flow's dynamic impact on a ship model of 888 project type

• Autorzy: Mironiuk W.
• Języki publikacji: EN

Abstrakty

EN

During operation, a ship is open to dynamic effects resulting from specifics of marine environment. Among these effects, wind dynamic impact together with a wavy motion is especially hazardous for the ship. These impacts generate heels to the big angle. The angle of dynamic heel can be determined according to IMO regulation but the real value is different. Determination of a real value of the dynamic angle of heel is possible by executing model tests performed with geometric and dynamic similarity scale taken into consideration. Results of initial research on air flow's dynamic impact on a ship model are presented in the elaboration. The research has been executed at a test stand located in the Polish Naval Academy. Main elements of the stand consist of model basin, ship model of 888 and 660 project type, computer registering parameters of the ship model position, device generating air flow. The ship model of888 project type has been an object of the tests. It was made in a scale 1:50 in respect to a real vessel. Results of executed measurements have been compared with theoretical calculations for an angle of dynamic heel. Input parameters for the tests and calculations have been defined in accordance with recommendations of Polish Register of Shipping (PRS) and IMO [1, 2, 5]. Determination of a heeling moment by wind operation has been a key issue. The executed research has revealed that the way the criteria of the ship's dynamic stability are defined by PRS and IMO takes a certain safety margin into account.

Słowa kluczowe

EN

stability and unsinkability of a warship model; laboratory stand bed; dynamic heel

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2011
• Tom: Vol. 18, No. 4
• Strony: 281--288
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Mironiuk W.

• Naval University of Gdynia, Faculty of Navigation and Naval Weapons Smidowicza Street 69, 81-103 Gdynia, Poland tel.:[phone],

Bibliografia

• [1] IMO Instruments, Code on Intact Stability of All Types of Ships, London1993.
• [2] IMO Instruments, International Code on Intact Stability, London 2008.
• [3] Gryboś, R., Podstawy mechaniki płynów część 2. PWN, Warszawa 1998.
• [4] Lewandowski, G., Badania modelowe stateczności dynamicznej okręu projektu 888 poddanego oddziaływaniu wiatru, AMW, Gdynia 2010.
• [5] PRS, Przepisy klasyfikacji i budowy statków morskich, Część IV, Gdańsk 2007.
• [6] PRS, Przepisy klasyfikacji i budowy okrętów wojennych, Część IV, Gdańsk 2008.
• [7] Mironiuk, W., Preliminary research on stability of warship models, COPPE Brazil: Rio de Janeiro 2006.
• [8] Pawłowski, M., Subdivision and damage stability of ships, Gdansk 2004.