The Application of Fault Tree Analysis in the Safety Performance of Cutter Suction Dredger

Abstract:

Cutter suction dredgers (CSD) play a major part in the field of dredging engineering in harbors, fairways, and land reclamation. CSD can continuously mine and transport the slop with good quality while CSD can tackle many types of soil. However, even a component failure, which is connected with parts and components of CSD, can result in no working. Thus, it affects the production capacity and efficiency of dredgers seriously. It is necessary to analyze the failure probability of CSD. The method of Fault Tree Analysis (FTA) is applied to analyze the failure probability of CSD. The method uses logical reasoning and builds a fault tree model by analyzing the relationship between the basic, intermediate and top events. Based on fault tree model of a variety of events " and " " or " relationship, we can obtain minimal cut sets of that cause the event to failure. Then, get the basic probability of the event. Finally, we can calculate the probability of the top events. Under experiments, the FTA method can accurately calculate the failure probability of CSD, and deduce in reverse order the key events that cause the top event. The study on the key events can reduce the failure probability of CSD, enhance its reliability and safety, and improve the efficiency and productivity indirectly. It will also lay a foundation for product configuration optimization.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 3298-3301
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.3298
• Online since: September 2013
• Authors: Yu Gang Zhou, Huan Min Xu
• Keywords: Cutter Suction Dredger, Dredging, Fault Tree Analysis (FTA), Security

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