Maximization of Fundamental Frequencies of Axially Compressed Laminated Curved Panels Against Fiber Orientations

• Main Authors: Jun-ming Chen, 陳俊銘
• Other Authors: Hsuan-Teh Hu
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/02357403525485265545

碩士 === 國立成功大學 === 土木工程學系碩博士班 === 97 === Because the composite laminated plates possess excellent characteristics such as lightweight, high stiffness and low thermal conductivity, has been widely used in advanced industrial engineering structures. To avoid structures produce resonance phenomenon, making materials exceeding the limits allowed to break, the structures analysis of natural frequencies become guidelines on structural design. In this thesis, ABAQUS finite element software is used to analyze that arc angle, boundary conditions, fiber, geometric shapes and axial pressure, have influence on maximization of the fundamental frequencies of symmetric composite laminated curved panel. And the golden section method is applied to find the angle of the best arrange fiber and its corresponding maximization of the fundamental frequency in the composite laminated curved panel. Analysis result displayed, maximization of the fundamental frequency of the composite laminated curved panel reduces along with increase of the axial pressure. And it can improve the fundamental frequency to choose from laminates fiber angle, boundary conditions and geometry suitably. In the future, the widespread use of composite plates is of help.