本論文之研究目的，一是建立一套虛擬實境於波浪中之操船系統；二是建立一套虛擬船舶拖帶系統，不僅可以經由個別的船舶操縱，亦可以模擬船舶拖拉之動態行為；三是在此虛擬系統中，除了船舶運動的逼真性外，並呈現範圍內的三維波浪模擬真實性。
本論文結合耐海性與操縱性之船體六度運動方程式來模擬船隻在不規則波浪中之運動，並結合六軸運動平台，建構成一個更加逼真的即時性操縱系統，其中六度運動數學模式以四階Runge-Kutta之數值方法來求解計算船隻在波浪中的時程領域運動反應。
虛擬實境系統主要以VB軟體為控制介面，由3D Studio Max軟體事先建造模型後匯入EON，及LabVIEW軟體配合A/D擷取卡擷取訊號，及Fortran軟體計算船體六度運動，以及EON虛擬互動式軟體來呈現輸出效果。波浪呈現由EON軟體中所提供的CG模組來解決，以Cg來呈現動態波浪，並透過單槍投影機、背投影螢幕、六軸平台等周邊硬體設備來達到擬真效果，將來再以此為基礎進一步可開發出更優良的虛擬實境之操船系統。

The main purpose of the present thesis can be described in three parts: (1) to establish the ship steering system in waves by virtual reality technique (2)to extend (1) to simulate the ship towing system (3) to simulate the three dimensional virtual random waves.
Based on the nonlinear mathematical model including the seakeeping and maneuvering characteristics of the ship, the present study integrates the six degrees of freedom motion platform to form a real time virtual reality simulation system to simulate the ship motion in random waves. The 4th Runge-Kutta method is adopted to solve the time history of the ship motions in waves to supply the necessary motion data to the simulation system.
The control interface of present virtual reality system is based on VB software. The scenery models are contracted in advance by 3D Studio Max software. The Rudder and RPM commands signals are transformed into digital data through the LabVIEW software and A/D card and transmit to the Fortran program for the ship motion calculation. With the output motion data, the virtual reality ship simulator can be operated according to the commands of the operator. The simulation system for ship maneuvering in waves developed here can be extended to meet the IMO requirement and will be helpful to the related navigation training.

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