鉄鎖係留ラインの静的張力特性と動的変動張力特性ついて

概要

論文の詳細を見る
This paper describes experimental and theoretical studies of the dynamic tension on the mooring line when it oscillates regularly and irregularly and the static tension when it moves statically. The numerical methods used to calculate the static and dynamic tensions are as follows: the one is the Lumped mass method and the other is the approximate calculation method in which the hydrodynamic forces containing the nonlinear damping and the inertia force acting on the mooring line are taken into account under the assumption of the infinitesimal amplitude and quasi-static motion of the mooring line. Furthermore, the specturum, probability density function and several statistical values of the dynamic tension in irregular oscillations are investigated and the estimation method of the maximum amplitude of the dynamic tension is examined. As a result of this study, the approximation method to calculate the static tension acting on the mooring lines of an uniform weight and with a sinker is proposed. As for the dynamic tension, the Lumped mass method and the approximate calculation method are considered to be effective through comparing with the experimental results. Furthermore, it has been found that the numerical results are in good agreement with the experimental results for the most part in respect to the spectrum and probability density function of dynamic tension and that the maximum amplitude of dynamic tension can be estimated by use of the time histories given by either the Lumped mass method or the approximate calculation method.
社団法人日本船舶海洋工学会の論文
1983-08-24

鉄鎖係留ラインの静的張力特性と動的変動張力特性ついて

スポンサーリンク

概要

著者

関連論文

スポンサーリンク