Vibration Analysis of Laminated Plates with Non-uniform Boundaries and Thickness by Quadrature Element Method

• Main Authors: Yen-Chen Chen, 陳彥臻
• Other Authors: Siu-Tong Choi
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/31110274757279540011

碩士 === 國立成功大學 === 航空太空工程學系碩博士班 === 91 === In this thesis, the dynamic characteristic of symmetrically laminated plates with non-uniform boundaries and thickness is investigated by using the Quadrature Element Method (QEM) and the classical plate theory. First, we apply the formulation of differential quadrature to obtain the discrete algebraic governing equations of laminated plate elements, which are then assembled to get the discrete equations for the entire plate. Non-dimensional frequencies of symmetrically laminated plates with uniform or non-uniform boundaries and thickness are obtained, and compared with those in the literature. Furthermore, the non-dimensional frequencies of laminated plates for different fiber orientation angles, numbers of layers and aspect ratios are studied. Numeral results show the high accuracy and efficiency of the QEM for vibration analysis of laminated plates.