本研究以流體動力學之數學模式來模擬船舶在具岸壁效應、波浪及其他外力環境下的操縱運動。程式中將船舶視為細長體，運用二維截片理論與影像法，利用類似於雙體船的概念來計算受岸壁影響之流體動力係數，如附加質量、阻尼與波浪激盪力。對於船在行經具岸壁的航道時，所受岸壁影響之橫移力及平擺力矩，本文使用柏努利方程式作計算，先分別計算船體各截片所受到的橫移力及平擺力矩後，再積分整條船，並利用實驗回歸公式修正其結果;此外，本研究亦嘗試以三維小板法計算岸壁效應之橫移力與平擺力矩作比較。船舶於入港前及港內航行時，可能受到外力如風、洋流、淺水效應及岸壁效應，影響船舶航行操縱，這些外力皆須考慮。本文利用四階Runge-Kutta法來計算時間域中的船舶運動，並考慮當船駛進港口及船舶距岸壁間不同的間隙大小及船舶速度與幾種不同海況下之情形。所得之結果，顯示本文之簡易方法可以用來作為船舶模擬操船訓練的一種應用參考。

In this paper, a hydrodynamic mathematical model for simulating the ship motion in waves with the bank effect and other forces is presented. The two-dimensional strip theory and the image method are applied on the calculations. The hydrodynamic coefficients such as added mass, damping and wave exciting forces are affectd by the bank and calculated by the method similar to the concept of the catamaran. When a ship sails along a bank in the channel, the side force and the yaw moment due to the bank will act on the hull. In the present paper, firstly based on the Bernoulli equation to calculate the force and the moment acting on the strips of the hull and integrate along the hull length. Then use the experimental data and regreesion method to correct the results. Besides, the bank effect of the sway force and yaw moment by using the three-dimensional panel method are also analyzed. When a ship is sailing into the harbor, the motion of the ship will be also affected by wind, current, shallow-water and bank, etc, which are also considered. The time domain simulation is solved by using the 4th order Runge-Kutta method, and several sea states are considered with respect to different ship speeds and different clearaces between ship and bank. The present studies reveal that the simplified method devploped here may be able to apply to the steering simulation traning.

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