The investigation of the influence of the distance between the ships and the fairway depth on the hydrodynamics characteristics of their joint motions in shallow water

Authors: V.Yu. Semyonova, Aung Myo Thant

Abstract

The article deals with potential three-dimensional problem of two ships' joint motion in shallow water. Its solution is carried out by a numerical method. The investigation of the influence of the distance change between the ships and the fairway depth on the coefficients values of added masses and damping is made. The developed numerical method and calculation program are tested. In the paper there are presented the results of the calculations of the added mass and damping coefficients for the two pairs of the ships located side-by-side, followed by the analysis of the results, depending on the change of the distance between the ships and depth.

Keywords: shallow water, method of the integral equations, joint motions of the ships, added masses of a ship, damping coefficients.

References

1. Semenova V.Yu., Aung M'o Tkhant. Determination of hydro-dynamic factor of apparent mass and damping with joint motions of two ships. Morskie intellektual'nye tekhnologii [Marine intellectual technologies]. 2015, N4 (30), vol.1, pp. 9-15. (In Russian)
2. John F. On the motion of floating bodies. Comm.Pure and Appl. Math., 1950, v. 3, p. 45-101.
3. Oorhnerssen G. The motions of a ship in shallow water. Ocean Engineering, 1976, vol.3, N. 4.
4. Wehausen J.V., Laitone E.V. Surface waves. Encyclopedia of Physics. Berlin, Springer-Verlag, 1960, v.9, pp. 446-778.

About authors

Victoria Semyonova - DSc, professor, FSEI State Marine Technical University, 3, Lotsmanskaya st., 190121, St. Petersburg, Russia 
viktosemenova@yandex.ru


Aung Myo Thant - postgraduate student, FSEI State Marine Technical University, 3, Lotsmanskaya st., 190121, St. Petersburg, Russia
aungmyothant.amt@mail.ru

Issue: 44/45 (2016)



For citation: V.Yu. Semyonova, Aung Myo Thant. The investigation of the influence of the distance between the ships and the fairway depth on the hydrodynamics characteristics of their joint motions in shallow water. Research Bulletin by Russian Maritime Register of Shipping. 2016, No. 44/45, pp. 61-68.

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UDC:  629.12.073.243.4
Pages:  61-68