半潜水式海洋構造物の上下揺れ特性簡易図表

概要

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Simple equations are given for evaluating the heave response of a semi-submersible composed of two lower-hulls and several columns in beam and head seas. It is proved the estimated heave response by the equations agrees well with the measured ones from the response tests in a wave tank, within the range of wave period including the second hump which always appears in the heave response of the semi-submersible. Expressions of the relationship between the second hump and the form parameter representing the structural geometry of the semi-submersible are obtained by using the simple equations. Then charts are shown of the second hump varying with the form parameter which depends on the depth of lower-hulls from the free water surface and heave natural period. The charts will be applied to finding the structural geometry of the semi-submersible with good motion characteristics.
社団法人日本船舶海洋工学会の論文
1989-08-25