Stability of free-floating ship. Part I

• Autorzy: Pawłowski M.
• Języki publikacji: EN

Abstrakty

EN

Problem of calculation of righting arms of the free-floating ship, i.e. longitudinally balanced at any heel angle, was formulated. In such a case of particular interest for a ship in the damage condition, the righting arms are ambiguous as they depend on a way the heeling moment acts. Two cases were considered: when the heeling moment is parallel to the ship plane of symmetry, and the case when it performs the least work, i.e. when the moment is parallel to the main axis of ship waterplane. It was demonstrated that angular translations (heel and trim) are then the Euler angles associated with a relevant reference axis. Some cases of the incorrect defining and using of those angles in today design practice were indicated. The most important features of the curve of righting arms of free-floating ship were demonstrated.

Słowa kluczowe

EN

stability; free floating ship

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2005
• Tom: nr 2
• Strony: 3--9
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Pawłowski M.

• Pawłowski: Kosowski Faculty of Ocean Engineering and Ship Technology, Gdańsk University Technology, Narutowicza 11/12, 80-952 Gdańsk, Poland

Bibliografia

• 1. Wimalsiri, W. K.: Design of ro-ro cargo ships with particular reference to damage survivability. PhD thesis. Dept. of Marine Technology, University of Newcastle upon Tyne. 1991
• 2. Pawłowski, M.: On the roll angle for a freely floating rig. Proceedings of 9th Int. Symposium on Ship Hydromechanics HYDRONAV'91, Gdańsk-Sarnówek. September 1991, Vol. I also in: Budownictwo Okrętowe i Gospodarka Morska, November 1991
• 3. Pawłowski, M.: Some inadequacies in the stability rules for floating platforms. Naval Architect, No. 2, 1992
• 4. Pawłowski, M.: Advanced stability calculations for a freely floating rig. Proceedings of 5th Int. Symposium on Practical Design of Ships and Mobile Units PRADS'92. Newcastle upon Tyne. 1992, Vol. II also in: Report, Dept. of Marine Technology, University of Newcastle upon Tyne. November 1991
• 5. Kaźmierczak, J.: Ship floatability and stability (in Polish). Wydawnictwa Komunikacyjne (Transport Publishing House). Warszawa, 1954
• 6. Staliński, J.: Ship theoiy (in Polish). Wydawnictwo Morskie (Maritime Publishing House). Gdynia, 1961
• 7. Rahola, J.: 777e judging of the stability of ships and the deter-mination of the minimum amount of stability. PhD thesis. University of Helsinki. 1939
• 8. International Maritime Organisation (IMO) : Recommendation on intact stability criteria for passenger and cargo ships under 100 metres in length. Resolution A.167 (ES.IV). London, 1987
• 9. International Maritime Organisation : Subdivision and damage stability of cargo ships, chapter II-1, part B-l, SOLAS Convention. Consolidated Edition. 1997
• 10. Pawłowski, M.: A closed form assessment of the capsizal probability - the Sj factor. Proceedings of WEGEMT Workshop on Stability of Ships. Technical University of Denmark (DTU). Lyngby. October 1995
• 11. Vassalos, D., Pawłowski, M., and Turan, O.: Criteria for survival in damaged condition. Proceedings of Int. Seminar on the Safety of ro-ro Passenger Vessels. RINA (Royal Institution of Naval Architects). London. June 1996 also in: Dynamic stability assessment of damaged passenger ro-ro ships and proposal of rational survival criteria. Marine Technology, Vol. 34, No. 4, October 1997
• 12. Huber, M. T.: Technical stereomechanics (strength of materials) (in Polish). Ed. II. PWN (State Scientific Publishing House). Warszawa, 1958 also e.g .: Parry, R. H. G: Mohr circles, stress paths and geotechnics. E & FN Spon. London, 1995
• 13. Siemionov-Tian-Shansky: Statics and dynamics of ships. Peace Publishers. Moscow, 1963, also in Russian: Statika i dinamika korabla. Sudostrojenie. Leningrad, 1973