設計海象の設定法に関する研究(その2)

概要

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To determine design values of wave-induced responses, Fukuda's long-term prediction method is used on the basis of linear-supeposition theorem. However, when the effect of non-linearity is significant on a response, there is no well-formulated method for the estimation of design value. A method to resolve this is to determine disign wave condition. Then, model experiment or non-linear simulation calculation can estimate highest possible response value in the condition. In the former paper, the author proposed a method to estimate severest sea condition for a response of ships or off-shore structure based on Fukuda's long-term prediction method. However, to employ the method, it is necessary to know the highest possible value of significant wave height as a function of mean wave period. In the present paper, measured records of sea waves by NOAA (National Oceanic Atmospheric Administration) and JMA (Japanese Meteorological Agency) buoys are examined. As a result, a function of mean wave period is proposed as an expression of the highest possible value of significant wave height.
社団法人日本船舶海洋工学会の論文
1997-03-29