A New Design Criterion to Improve the Intact Stability of Galician Small Fishing Vessels
| Autor: | José A. Orosa, Diego Vergara, Rebeca Bouzón, Jesús Alvite-Castro, Ángel M. Costa |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Stability criterion
Fishing 020101 civil engineering Ocean Engineering 02 engineering and technology 01 natural sciences Stability (probability) 010305 fluids & plasmas 0201 civil engineering lcsh:Oceanography lcsh:VM1-989 0103 physical sciences Wave height fishing vessels Fishing grounds lcsh:GC1-1581 Water Science and Technology Civil and Structural Engineering Mathematics Fishing vessels Mode (statistics) lcsh:Naval architecture. Shipbuilding. Marine engineering accident stability criterion fishing grounds Accident Metacentric height Marine engineering |
| Zdroj: | Journal of Marine Science and Engineering, Vol 8, Iss 499, p 499 (2020) RUC: Repositorio da Universidade da Coruña Universidade da Coruña (UDC) RUC. Repositorio da Universidade da Coruña instname Journal of Marine Science and Engineering Volume 8 Issue 7 |
| ISSN: | 2077-1312 |
| Popis: | The first technical factor involved in maritime accidents is related to the lack of intact stability. The current stability criterion, based on fixing a minimum value for each of the different static and dynamic righting arms, is not regarded as satisfactory. Correspondingly, a new criterion based on the transverse metacentric height, dynamic stability up to 70° heel, and critical wave height were considered for fishing vessels less than or equal to 24 m in length. This can be understood as an improvement on the Rahola criterion or an equivalent criterion of dead ship capsize mode, as assumed in the second-generation stability criteria. The proposed criterion, when used in a real case study on the Galician fishing grounds, achieved higher precision. The few vessels that did not comply with the proposed requirement can continue to operate in the area if the Meteorological and Oceanographic Coefficient (CMO) is considered at the time we employ our criteria. As a result, their activity is limited to only a few fishing grounds where adequate weather conditions exist. Finally, the methodology developed can be easily extrapolated to other regions in the world. |
| Databáze: | OpenAIRE |
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