Investigation on the Stability of a Top-tensioned Riser in Irregular Waves

Xiao, F. and Yang, H. (2014) Investigation on the Stability of a Top-tensioned Riser in Irregular Waves. In: 24th International Ocean and Polar Engineering Conference, ISOPE 2014, Busan, South Korea, 15-20 June 2014, ISBN 9781880653913

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The stability of steel top-tensioned risers is presented, considering parametric excitation and periodic vortex shedding excitation. Parametric instability is prone to be excited when the frequency of outside excitation and the natural frequency of offshore structures satisfy a certain condition. The prediction of parametric instability of top-tensioned risers in irregular waves based on Hill stability chart is urgently needed. The potential uncertainties of external loadings, geometry, and material properties, and consideration of periodic vortex excitation, make the analysis of instability a more challenging issue.

Item Type:Conference Proceedings
Additional Information:Proceedings of the International Offshore and Polar Engineering Conference 2014, Pages 217-222.
Glasgow Author(s) Enlighten ID:Yang, Dr Hezhen
Authors: Xiao, F., and Yang, H.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment

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