本文旨在針對船舶於入港前後及港內航行時可能會受到的潮流、船舶干擾及岸吸效應等方面，研究其對船舶操縱的影響，並發展較精確之數值運算模式整合於船舶操縱模擬系統中，以強化船舶入港前後及於港內航行時的操船模擬準確性，提升擬真程度。本研究採用結合耐海性與操縱性之船體六度運動方程式，並以四階Runge-Kutta之數值方法求解，模擬計算船隻在波浪中的時程領域運動反應。計算潮流、船舶干擾及岸吸效應時，將船體劃分區段個別運算，此種計算方式能夠更準確地描述船體的受力情形，進而模擬更真實的運動反應。本文並利用結合虛擬實境技術的船舶操縱模擬系統，利用數值程式計算出來的結果，虛擬船舶在遭遇潮流、船舶間交互干擾及岸吸效應時的運動反應，以此更準確之數值結果結合虛擬操船系統，可大幅強化船員之操船訓練。

The present paper mainly studies the effects of the current, ship to ship interactions and bank suction on the ship steering before and after entering the port. In order to strengthen the accuracy of the ship steering simulation under such environmental conditions and promote reality degree in and out of the port for the simulator, a more practical numerical model is necessary and therefore developed in the paper. The mathematical model developed here includes the seakeeping and maneuvering characteristics and the ship motion time history simulation is solved by using the 4th Runge-Kutta method. The calculations of the effects of the current, ship to ship interaction and bank suction are carried out by dividing the ship into several strips, which can simulate the ship motion response more accurate and realistic based on the strip theory. The final compact model is also integrated in the virtual reality ship simulator to simulate the ship response under these environmental effects and it is believed to be more helpful to the steering training of operator on board.

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