Elastic response characteristics of a very large floating structure in waves moored inside a reef

2003 ◽  
Vol 8 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Satoru Shiraishi ◽  
Kazuhiro Iijima ◽  
Keitaro Harasaki
Keyword(s):  
Elastic Response ◽  
Floating Structure ◽  
Response Characteristics ◽  
Very Large Floating Structure

Response Characteristics of Semisubmersible-Type-Megafloat in Waves and Accuracy of Hydroelastic Response Analysis Program VODAC

2002 ◽  
Author(s):  
Hideyuki Suzuki ◽  
Koichiro Yoshida ◽  
Kazuhiro Iijima ◽  
Kentaro Kobayashi
Keyword(s):  
Dynamic Response ◽  
Elastic Response ◽  
Scale Model ◽  
Design Parameters ◽  
Accurate Estimation ◽  
Response Analysis ◽  
Functional Requirements ◽  
Analysis Program ◽  
Floating Structure ◽  
Response Characteristics

Technical feasibility and practical design method of SSMF, a Semi-Submersible-Type-Megafloat, was studied under research funding from Corporation for Advanced Transport and Technology. A SSMF which serves as a airport for local air transportation of isolated islands was assumed in the research. Typical deck size of the SSMF is 2200m long, 300m wide and 9m deep. In the design of the SSMF, column supported type structure was chosen to satisfy the strength and functional requirements in the environmental condition around Japanese islands in the pacific ocean. The deck structure is supported by 320 columns with draft of 16m. In the design of structural dynamics of the SSMF, a computer code VODAC was adopted to calculate hydro-elastic response. VODAC is an analysis program of hydro-elastic response of Very Large Floating Structure (VLFS) which has been developed in University of Tokyo. This paper presents a series of experiments and calculations carried out to investigate response characteristics of SSMF and to confirm capability and accuracy of VODAC. Basin experiments were carried out using a scale model, which is elastically and dynamically similar to the designed SSMF airport, and the response characteristics were clarified. A simple numerical model was also proposed as a simplified model of dynamic response of VLFS. This model is a simple beam on elastic foundation, but it is shown that basic response characteristics of the structure can be relatively accurately expressed by this model. Design parameters were discussed using this model. Relationships between major design parameters and dynamic response characteristics were clarified. Furthermore it was shown that this model is not just a qualitative model but gives relatively accurate estimation of the response. It is shown that this model gives upper limits of response of real structure and a good safe side estimation.

Time-domain analyses of elastic response and second-order mooring force on a very large floating structure in irregular waves

2000 ◽  
Vol 13 (4-5) ◽  
pp. 279-299 ◽  
Author(s):  
Hisaaki Maeda ◽  
Tomoki Ikoma ◽  
Koichi Masuda ◽  
Chang-Kyu Rheem
Keyword(s):  
Time Domain ◽  
Second Order ◽  
Irregular Waves ◽  
Elastic Response ◽  
Floating Structure ◽  
Very Large Floating Structure

scholarly journals RESPONSE CHARACTERISTICS TO WINDS AND WAVES ABOUT FLOATING STRUCTURE SUPPORTING HIGH RISE BUILDING

2018 ◽  
Vol 74 (2) ◽  
pp. I_958-I_963
Author(s):  
Masanobu HASEBE ◽  
Masaki TAKEUCHI ◽  
Shuhei ONO ◽  
Ikuo YOSHIDA ◽  
Kenji SHIMADA ◽  
...  
Keyword(s):  
Floating Structure ◽  
Response Characteristics ◽  
High Rise ◽  
High Rise Building
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