碩士 / 國立臺灣大學 / 工程科學與海洋工程學系 / 91 / This thesis aims at the management and application of the identification techniques for the structural systems that have been developed by the laboratory of CAE/CIM at the department of engineering science and ocean engineering at National Taiwan University during the past five years. To finish a set of the measurement and analysis systems for using in ship structure, the practical results from our past studies are integrated with the habitability and the rule of vibration evaluation for ship structures.
This work is divided into three parts: (1) The theory and practical example of system identification. (2) The creation of the analysis systems of vibration monitoring. (3) The application of measurements on real ship.
The theory and practical example of system identification:
The structural identification methods for estimating the modal parameters and structural system matrices employed the VBAR and VBARX models, which have been developed by CAE/CIM laboratory, are integrated with the LabVIEW package for obtaining the effects of that the real-time measurements are just the real-time analysis and the total analysis time can be reduced extremely.
The creation of the analysis systems of vibration monitoring:
The existing measurement system of structural vibration that is based on a PC framework is extended for the measurement of dynamical responses, for the evaluation of vibration level and for the discussion and analysis of the dynamic characteristics of ship structure in the long-term period.
The application of measurements on real ship:
The developed measurement system is employed to a new ship on-site and the vibration level also is monitored automatically. The measurement contents include the modal identification and the evaluation of vibration level in various RPM conditions.
| Identifer | oai:union.ndltd.org:TW/091NTU00345048 |
| Date | January 2003 |
| Creators | Chen, Yi-Chuan, 陳怡全 |
| Contributors | C. F. Hung, 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 | 126 |
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