The disturbances of the life raft leeway induced by the fluctuations of wind direction in the life raft coordinate system

• Autorzy: Burciu Z.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of investigations on the life raft leeway induced by the fluctuations of wind direction. The surface current is one of the main factors determining the life raft leeway, but the recently conducted research confirmed that there are also other elements influencing the perturbations of leeway direction. The field experiments showed diversion of the life raft leeway from the downwind direction. This diversion can be explained by the existing cross wind component. The wind tunnel tests allowed to determine the aerodynamic coefficients in the fluid-state control system. On the basis of the test results the expression for the wind pressure force has been formulated. The mean deviation and median of probability distribution of the leeway diversions from the downwind direction has been determined on the basis of investigations conducted at sea. The models for the life raft velocity dependent on wind velocity, developed for the life raft with drogue and without drogue, are presented in the paper.

Słowa kluczowe

EN

search and rescue; life raft aerodynamic coefficients; sea investigations of life raft leeway; model of life raft leeway

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2007
• Tom: S 2
• Strony: 60--63
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Burciu Z.

• Gdynia Maritime University

Bibliografia

• [1] Burciu Z. Modelowanie Obszarów Poszukiwania w Aspekcie Bezpieczeństwa Transportu Ludzi na Morzu. Prace Naukowe Transport z.50, Oficyna Wydawnicza Politechniki Warszawskiej, s.128, Warszawa 2003.
• [2] Burciu Z. et. al. Opracowanie wewnętrzne Informatyczny system wspomagający akcję ratowania życia ludzkiego na morzu .W ramach Projektu Celowego dofinansowanego przez Komitet Badań Naukowych Nr 2288/C.T12-9/98. Gdynia 2001.
• [3] Smolarek L. et. al. Opracowanie wewnętrzne Stateczność dynamiczna i prawdopodobieństwo przewrócenia się odkształcalnej tratwy ratunkowej na fali. Projekt badawczy nr 4T12C03827. Gdynia 2005.
• [4] Fitzgerald R.B., Finlayson D.J., Cross J.F., Allen A. Drift of Cammon Search and Rescue Objects - Phase II. Contract report prepared for Transportation Development Centre, Transport Canada, Montreal TP 11673E, 1993.
• [5] Final Report Review of Leeway. Field Experiments and Implementation U.S. Coast Guard Research and Development Center, Report No. CG-D-08-99, April 1999.
• [6] Final Report Leeway Divergence U.S. Coast Guard Research and Development Center, Report No. CG-D-05-05, January 2005.
• [7] Provisions of conventions, plans, manuals and other documents affecting SAR – Changes to the IAMSAR Manual (First Edition). Proposed by the United States ICAO/IMOJWG/7-WP.1 February, 2000. Adoption of amendments to the International Aeronautical and Maritime Search and Rescue Manual, MSC/Circ.999-11 June 2001.
• [8] Raport z badań Badania aerodynamiczne pneumatycznych tratew ratunkowych w tunelu aerodynamicznym – 5m – Raport nr 168/BA/2000/D Instytut Lotnictwa Warszawa 2000