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| Methods for Evaluating Added Masses of a Group of Circular Cylinders in Confined Fluid |
| Received:November 22, 2018 Revised:February 25, 2019 |
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| DOI：10.7643/ issn.1672-9242.2019.02.022 |
| KeyWord:circular cylinders confined fluid flow-induced vibration added masses |
| Author | Institution |
| XIE Teng |
China Ship Scientific Research Center, Wuxi , China |
| LIU Jian-hu |
China Ship Scientific Research Center, Wuxi , China |
| WANG Hai-kun |
China Ship Scientific Research Center, Wuxi , China |
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| Abstract: |
| Objective To provide certain theoretical basis for shock resistance design of circular cylinders and similar struc-tures. Methods Firstly, the velocity potential of a stick was calculated by the potential flow theory. Secondly, the total velocity po-tential of sticks was calculated by Taylor expansion and coordinate transformation and to finally get the added mass. Results The relationship between the added mass and the distance between the cylinder and the boundary, the distance between the cylinders, the number of cylinders and different modes was obtained from the formula. Conclusion This formula is verified by finite element simulation calculation and experiment. It can be used in the design of circular cylinders and similar shock resistance structures |
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