Motions of a Floating Elastic Plate in Waves (2nd Report) : Γ-Shaped Structure and Pre-Connecting Condition

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概要

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• In the first report, we have developed a new modal analysis method for estimating wave-induced motions of a mat-like very large floating structure (VLFS) , and verified it by comparing the numerical results with the experimental ones with respect to the motion amplitudes of the elastic model in head sea condition. Furthermore, we applied it to a large floating module, and investigated the motion performances of it and disturbance waves around it in head and quartering seas. Finally we showed the response amplitude operators of the first 10 modes in all heading waves with various wave lengths. In this paper, we deals with motion performances of two adjacent mat-like structures in waves which are assumed to be under construction of VLFS. We have applied our method to a Γ-shaped structure and a small rectangular-shaped structure which will be connected to construct VLFS in open seas. First, several lower eigenmodes of the Γ-shaped structure with a length of 600 m and a breadth of 120 m are evaluated. Then its motion responses and wave profiles around it are calculated. In the next place, we investigate the motion performances of the Γ-shaped structure and the small rectangular-shaped structure which will be connected and wave profiles around them. Furthermore, we discuss the variations of vertical gap between them and rigidity effects of the structures on the motion performances of these structures in waves.

• 社団法人日本船舶海洋工学会の論文

著者

• 高木 幹雄

  Faculty of Engineering, Hiroshima University

• Gu Xiechong

  Graduate School Hiroshima University

• TAKAKI Mikio

  Faculty of Engineering, Hiroshima University

• Takaki Mikio

  Faculty Of Engineering Hiroshima University

関連論文

• Effect of the Steady Disturbance on the Unsteady Flow around a Ship in Waves
• Combined Boundary-Integral Equations Method for Ship Motions in Waves
• A B-Spline Element Method for Predicting the Hydroelastic Responses of a Very Large Floating Structure in Waves
• Effects of Connecting Condition on Motions of Huge Floating Structures in Waves
• Motions of a Floating Elastic Plate in Waves
• Motions of a Floating Elastic Plate in Waves (2nd Report) : Γ-Shaped Structure and Pre-Connecting Condition
• Hydrodynamic Characteristics of a Submerged Horizontal Plate
• A B-Spline Type Direct Method for Predicting the Wave-Induced Motion of a Very Large Floating Structure

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