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Further analysis on natural vibration of deep-water risers
Pages: 165-171
Year: Issue:  1
Journal: Journal of Ship Mechanics

Keyword:  deep-water risernatural vibrationanalytical methodsimplified method;
Abstract: The investigation on the natural vibration characteristics of deep-water riser is of significant importance for understanding the mechanism of parametric vibration and vortex-induced vibration, and vi-bration of the riser, described by a fourth-order partial differential equation, is difficult to solve analytical-ly. This paper presents natural vibration analysis of deep-water riser with a simplified analytical method based on classical vibration theory. The effects of gravity, bending stiffness and floating platform heave on the natural vibration are investigated and discussed. The results indicate that the simplified analytical method is easily programmed on portable computers and can meet the demand of engineering application and re-search of complex vibration.
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