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  • On the interaction of surface waves with an elastic plate of finite length in head seas

    Author(s)
    Sun, Hui
    Song, Hao
    Cui, Weicheng
    Liu, Yingzhong
    Griffith University Author(s)
    Song, Hao
    Year published
    2002
    Metadata
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    Abstract
    An eigen-function expansion method based on a new orthogonal inner product is proposed by Sahoo et al. (2000) for the study of the hydroelastic response of mat-type VLFS in head seas. However, their main emphasis is on the effect of edge conditions and they assume that the plate is of a semi-infinite length. In reality, the plate is of finite length. For consideration of the finite length effect, the reflection and transmission from the other end must be considered. The effect of this reflection and transmission on the hydroelastic response of VT.FS is of interest for practical application. Furthermore, the physical meaning ...
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    An eigen-function expansion method based on a new orthogonal inner product is proposed by Sahoo et al. (2000) for the study of the hydroelastic response of mat-type VLFS in head seas. However, their main emphasis is on the effect of edge conditions and they assume that the plate is of a semi-infinite length. In reality, the plate is of finite length. For consideration of the finite length effect, the reflection and transmission from the other end must be considered. The effect of this reflection and transmission on the hydroelastic response of VT.FS is of interest for practical application. Furthermore, the physical meaning of the new inner product was not given in their paper. In this paper, it is shown that the new inner product can be derived from the governing equation and the bottom boundary conditions. Then the same eigen-function expansion method is adopted for the study of the hydroelastic response of an elastic plate of finite length in surface waves. Detailed comparisons are made between the present finite length model and the semi-infinite model and between the present model predictions and the experimental results. It is found that that the finite length effect is significant and the accuracy of present model is higher than the semi-infinite model. Furthermore, a new phenomenon, which is not mentioned in Sahoo et al. (2000), is found. That is, for larger L/h ratios, the reflection and transmission coefficients will oscillate with the non-dimensional parameter ko h. Further study is needed for full understanding of this phenomenon.
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    Journal Title
    China Ocean Engineering
    Volume
    16
    Issue
    1
    Publisher URI
    http://www.chinaoceanengin.cn/hygczgen/ch/index.aspx
    Subject
    Mathematical Physics not elsewhere classified
    Theoretical and Applied Mechanics
    Maritime Engineering
    Publication URI
    http://hdl.handle.net/10072/22247
    Collection
    • Journal articles

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