Case Study of Mast Damage on Board of Tall Ship POGORIA
At the entrance to the Gulf of Finland (Baltic Sea), Polish barqucntine POGORIA with 50 crewmembers onboard had an accident during Tall Ships Race in the first half of July 2009. All three masts were broken and destroyed both running and standing riggings. Any significant consequences for the crewmembers did not come into existence. Nevertheless, this accident focused considerable attention of the people and media interested in sail training. They formulated the following questions related to causes of mast fracture: source of releasing so huge destructive forces, factors triggering off domino effect, damage explanation of all mast which should be the strongest from the entire chain of sail propulsion: sails-running riggings-standing riggings-mast. To explain of all aspects of the mentioned accident, Marine Chambers in Gdynia has begun investigation. It is the Polish legal institution carry out monitoring and analyzing of marine accidents from the navigational safety point of view. The verdict of such a legal institution did not lay the blame on both the crew and shipowner. Nevertheless, answers for such formulated questions became significant and urgent for persons, who are permanently involved in the field of sail training. So, they tried to explain all aspects of aroused doubts. In our opinion, the accelerated corrosion of the skin material in heataffected zones was the main cause of the foremast and mainmast destruction. This kind of corrosion resulted from the synergic co-operation of two factors which had both the design and the technological nature. This paper deals with fundamental circumstances of the occurred accident. Particularly, a process of the mast destruction, analysis of mast crack places, and the structural and technological causes of the mast weakening are presented.
damage mast destruction tall ship crack case study
TARELKO Wieslaw
Department of Fundamental Engineering Sciences, Gdynia Maritime University, Poland
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
1885-1891
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）