碩士 / 國立臺灣大學 / 造船及海洋工程學研究所 / 90 / Abstract
High transverse stability and loading capacity of catamaran emphasize the need for development in the advanced ship building field all over the world. To provide passengers a more comfortable environment, the floating deck structure has been introduced to isolate the vibration from main engine and propeller. The floating deck design reduces the transverse strength for the high-speed catamaran.
In this paper , a wave-piercing catamaran was selected as a study case. The HSC3D code is adopted as analysis tool for calculation of ship motion and wave loads. The Finite Element Method package ANSYS is used for stress analysis and structural optimization.
Three portions are contained in this paper :
1.Stress analysis. The wave loading approx mated by DNV (1996) design guide, and the press distribution on craft hull calculated by HSC3D , which based on the translating pulsating Green’s function theory, are considered. The distribution of von Mises’s stress on L, L and L sections are compared. The effects of floating deck on the strength of structure are examined.
2. Modal analysis and harmonic analysis are carried out by reduced method to evaluate the dynamic characteristic of ship with and without the floating deck. The reduction of vibration level by floating deck structure are discussed.
3. The submodel of middle part of catamaran is setup for stress analysis in finer mesh, and for structural optimization of the transverse webframe.
| Identifer | oai:union.ndltd.org:TW/090NTU00345004 |
| Date | January 2001 |
| Creators | Tsai Hsin-Yun, 蔡欣昀 |
| Contributors | 洪振發 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 0 |
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