Investigation on transient dynamic behaviors of low-tension undersea cables |
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Authors: | Cun-feng Huo Bao-heng Yao Bin Fu Lian Lian |
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Institution: | 1.State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering,Shanghai Jiaotong University,Shanghai,China |
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Abstract: | This paper presents a numerical analysis of the dynamic transient behaviors of undersea cables. In this numerical study, the
governing equations based on Euler-Bernoulli beam theory are adopted, and they can satisfy many applications no matter what
the magnitude of the cable tension is. The nonlinear coupled equations are solved by a popular central finite difference method,
and the numerical results of transient behaviors are presented when several kinds of surrounding conditions, such as different
towing speeds of surface vessel, different currents and waves with various frequencies and amplitudes, are exerted. Then a
detailed comparison of the results, including the upper end tension and cable shape in time-domain, is made under the above
external excitations, and finally the possible reasons for these are further explained. |
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Keywords: | |
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