In order to fully exploit the potential of FPSOs in the development of offshore oil field, a new concept of sandglass-type FPSO has been put forward recently. In this paper, a novel approach is proposed for designing the main dimensions of the new sandglass-type floating body. With the application of the strip method, the wave-free frequency in heave motion is intensively investigated. The resulting expression shows that the wave-free frequency has close connection with the water-plane area and the corresponding added mass. Then a uniform approximation of the relationship between the added mass and the main dimensions of structure below the waterline is discussed. By comparing with the numerical results of minimum heave RAO of heave motion, the validity and rationality of the proposed method are verified. Besides, experiments are carried out for the sandglass-type floating model and the results support the numerical results and the proposed method. Finally, combining with other requirements in the configuration of the structure above the waterline for the operation at sea, the design scheme for the main dimensions of the sandglass-type FPSO is established.
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ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering
June 25–30, 2017
Trondheim, Norway
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5774-8
PROCEEDINGS PAPER
A Novel Approach for Selecting Main Dimensions of New Sandglass-Type FPSO
Yazhen Du,
Yazhen Du
Dalian University of Technology, Dalian, China
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Wenhua Wang,
Wenhua Wang
Dalian University of Technology, Dalian, China
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Linlin Wang,
Linlin Wang
Dalian University of Technology, Dalian, China
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Yi Huang
Yi Huang
Dalian University of Technology, Dalian, China
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Yazhen Du
Dalian University of Technology, Dalian, China
Wenhua Wang
Dalian University of Technology, Dalian, China
Linlin Wang
Dalian University of Technology, Dalian, China
Yi Huang
Dalian University of Technology, Dalian, China
Paper No:
OMAE2017-62377, V07BT06A038; 7 pages
Published Online:
September 25, 2017
Citation
Du, Y, Wang, W, Wang, L, & Huang, Y. "A Novel Approach for Selecting Main Dimensions of New Sandglass-Type FPSO." Proceedings of the ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. Volume 7B: Ocean Engineering. Trondheim, Norway. June 25–30, 2017. V07BT06A038. ASME. https://doi.org/10.1115/OMAE2017-62377
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