地震津波による船体の流圧力算定方法について : 流れが船長方向に一様でない場合

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タイトル別名
  • Calculation Method on Current Forces for Moored Ship under Uneven Tsunami Currents in direction of Ship's Bow and Stern
  • ジシン ツナミ ニ ヨル センタイ ノ リュウ アツリョク サンテイ ホウホウ ニ ツイテ ナガレ ガ センチョウ ホウコウ ニ イチヨウ デ ナイ バアイ

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抄録

In our previous study, a numerical simulation procedure on moored ship motions induced by tsunami was proposed, and characteristics of the motions and the mooring loads affected by berth location, ship kind, ship condition and mooring system especially in fender types were investigated. During our investigation, it has been appeared that currents around the ship which is moored near to harbor entrances and/or edges of inside harbor vary drawing a vortex. In this case, excess current forces in not only sway and surge but also in yaw may act the ship. In this paper, we propose a calculation method on current forces of ship under the uneven tsunami currents in direction of ship's bow and stern, and investigate the effect using the simulation procedure.

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