テンション・レグ・プラットフォームの波浪中応答特性

概要

論文の詳細を見る
This report describes the dynamic response of TLP(tension leg platform) of the three legs type in regular waves. The horizontal components of wave exciting force on the columns and the bracings of the TLP model are calculated by means of the inertia force componet in Morison's formula, the drag force being considerd negligible. The vertical components are calculated by the Froude-Krylov's force on the columns, while by the inertia force in Morison's formula for the bracings. Comparison between experimental and calculated results of wave exciting force showed fairly good approximation of this estimation method.Accordingly, the motion of TLP in surge, heave and pitch are calculated by using the above mentioned wave exciting force. For the simplicity of calculation of the motion of platform and the tension induced on the legs, the motions of TLP in surge, heave and pitch are assumed to be uncoupled. The calculated results showed qualitatively good agreement with the experimental results both for the motions and tension fluctuations.In addition, experimental results of non-liner response of tension in regular waves and spectrum of response in irregular waves including slow drift oscillation are considered.
独立行政法人海上技術安全研究所の論文
1982-09-30