EXPERIMENT ON BEHAVIOURS OF LONG AND FLEXIBLE PIPE IN WATER.

M. Ohkusu, M. Nakamura

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

抄録

Forced motion tests of pipe models were done in a model basin. Fluid dynamic forces on the pipe models hanging and oscillating in water were estimated with measured forces required to give that oscillation to the models. The magnitude of the fluid dynamic forces thus measured was near that expected on a cylinder oscillating in a rigid body mode. However an unexpected behavior, lateral vibration induced by heaving motion, was observed at some special frequencies of the oscillation. A mathematical model used for lateral vibration of elastic pipe in water was found to be capable of describing this behaviour as a parametric excitation of Mathieu type and a theoretical method was proposed to predict the magnitude of this excitation. A mathematical model was proposed to improve the quantitative accuracy of prediction.

本文言語英語
ホスト出版物のタイトルUnknown Host Publication Title
編集者W. Kato
出版社Springer Verlag
ページ411-421, pn
ISBN(印刷版)4431700080
出版ステータス出版済み - 1985

!!!All Science Journal Classification (ASJC) codes

  • 工学一般

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