碩士 / 國立臺灣大學 / 電機工程學研究所 / 95 / This thesis is focused on the construction of physical dynamic system about the ship modeling and motion simulation on virtual reality. We introduce the deep ocean surface constructed as our virtual environment in real-time by personal computer which is mounted NVIDIA GeForce Go 7400 graphics card and 2.00GHz CPU. We introduce an ocean spectrum theorem, so the ocean wave is created by defining the gravity and the wind. Further more, in order to obtain the real-time and realistic rendering ocean scenery, we adopt Graphics Processor Unit (GPU) hardware on shading color. The reflection phenomenon and Fresnel effect are concerned on our dynamic ocean. On ship modeling, the forces and torques are calculated from the generated dynamic waves, which are based on the hydrodynamics and transferred to our ship model. We present a new algorithm to assign points on ship hull, and apply the 3D mathematics theorem to locate each point. According to the calculation of the volume of ship below the ocean surface, we can approach the dynamics of the ship. This simulation can also be integrated with the 6 degree-of-freedom motion platform to generate realistic motion sensation.
| Identifer | oai:union.ndltd.org:TW/095NTU05442091 |
| Date | January 2007 |
| Creators | Ching-Tang Chou, 周靖棠 |
| Contributors | 傅立成 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | en_US |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 86 |
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