側壁近傍を航行する二船間の相互影響

概要

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It is well known that the hydrodynamic interaction forces between ships or between ship and bank wall affect ship manoeuvring characteristics. In the previous paper, one of the authors has already proposed the calculation method based on the slender body theory for estimation of the hydrodynamic interaction forces between ships. In this paper, we apply the calculation method to the case of two ships in the proximity of the bank wall, circular pier and oval shape pier. The characteristics of hydrodynamic forces acting on ships are discussed. Furthermore, the manoeuvring motions of ships during passing through the proximity of the bank wall and pier by using these hydrodynamic interaction forces are discussed. From these discussions, the characteristics of the hydrodynamic forces acting on ships are as follows. When one ship passes the other ship through the proximity of bank wall or pier, the bow inward-moment acts on a ship before the ship passes the pier, and after that the bow outward-moment acts on a ship. The lateral force acting on a ship during passing through the proximity of pier changes remarkably. If lateral distance between two ships is as same as that between ship and bank wall or pier, the hydrodynamic interaction forces between ships are larger than that of between ship and bank wall or pier.
社団法人日本船舶海洋工学会の論文
1991-03-29