Optimum selection of design parameters for transportation of offshore structures |
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Authors: | J.L. Alamilla C. Ortega A. Soriano J.L. Morales |
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Affiliation: | Mexican Institute of Petroleum, Eje central Lázaro Cárdenas 152, Col. San Bartolo Atepehuacan, Del. Gustavo A. Madero, 07730 México DF, México |
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Abstract: | A probabilistic framework is presented to select the design significant wave height and design transverse rotation for typical barges used in the Gulf of Mexico for marine transportation of structural elements and/or systems. The selection of design transverse rotation is based on optimization procedure that trade-off between the performance of the barge subjected to a meteorological-oceanographic (metocean) hazard along the route and losses by structural damage. For this purpose probabilistic models to estimate the metocean hazard for marine transportation are shown. Afterwards, the design rotation is linked to the design of significant wave height and to the return period associated with such wave conditions. The formulation is applied to an offshore transportation route in the Gulf of Mexico. |
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Keywords: | Expected losses Metocean hazard Marine structure transportation Significant wave heights Barge response Exceedance probability Design parameters |
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