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Theoretical and experimental analysis of air gap response and wave-on-deck impact of floating offshore structures

Lookup NU author(s): Saeid Kazemi, Professor Atilla Incecik


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A comparative study between the theoretical and experimental analysis of air gap response and potential waveon-deck impact forces of floating offshore structures is the main topic of this study. Both motion of the platform and the local wave elevation are important in air gap responses and wave impact forces. So, accurate and efficient computational analysis of wave induced loads and resulting platform's responses and wave elevation is important in the prediction of air gap and evaluation of possible wave impact force. Numerical modelling for air gap and wave impact prediction is particularly complicated in the case of floating offshore structures because of their large volume, and the resulting effects of wave diffraction and radiation. Therefore, for new floating platforms, the model tests are often performed as part of their design process. The overall aim of this study is to introduce a simplified numerical method with sufficient accuracy suitable for preliminary design stages of a floating offshore platform to predict the air gap response using hybrid method and to evaluate the vertical wave impact force using Wagner-based method. The results obtained from the proposed method have been compared with those obtained from the experiments carried out in the wave tank of the Newcastle University. Copyright © 2007 by ASME.

Publication metadata

Author(s): Kazemi S, Incecik A

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: International Conference on Offshore Mechanics and Arctic Engineering - OMAE

Year of Conference: 2007

Pages: 297-304

Publisher: American Society of Mechanical Engineers

Library holdings: Search Newcastle University Library for this item

ISBN: 0791842673