Approximate Method for Calculating Dynamic Tension of Mooring Chain
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概要
- 論文の詳細を見る
This paper deals with the approximate method for calculating the dynamic tension of the mooring chain which is anchored in slack condition on the sea bed and is forced to oscillate vertically and horizontally at its upper end. An extensive series of experiments has been conducted to clarify the mechanism of generating the dynamic tension and the snapping of a mooring line. Using the results of experiments, the cable's shape during oscillation is approximated as a catenary line. Moreover, the oscillation of a mooring line is idealized as a single-degree-of-freedom motion of one lumped mass. The dynamical equation of the motion of the mass are solved over a broad range of forcing amplitude and periods of practical use, and their threshold values for the snap are obtained analytically. The calculated results are in good agreement with those of the experiments.
- 財団法人日本海事協会の論文
著者
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Koterayama Wataru
Research Institute For Applied Mechanics Kyushu University
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Suhara Toshiro
Research Institute For Applied Mechanics Kyushu University
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Hiyama Hiromi
Research Institute for Applied Mechanics, Kyushu University
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Koga Yoji
Research Institute for Applied Mechanics, Kyushu University
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Hiyama Hiromi
Research Institute For Applied Mechanics Kyushu University
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Koga Yoji
Research Institute For Applied Mechanics Kyushu University
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