VR-based Motion Simulator for Ships on Real-time Rendered Dynamic Ocean
Date Issued
2007
Date
2007
Author(s)
Chou, Ching-Tang
DOI
en-US
Abstract
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.
Subjects
虛擬實境
船舶建模
海浪模擬
流體力學
動力學
圖形處理單元
海洋頻譜
Virtual reality
Ship modeling
Ocean wave simulation
hydrodynamics
dynamics
Graphics Processor Unit
Ocean spectrum
Type
thesis
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