由於複合材料具有高強度、高勁度、重量輕及低導熱之優越特性，已被廣泛應用於先進工業工程結構上。為避免外在環境之振動對結構物所產生的激振頻率與結構本身之自然頻率相近，而產生共振現象，造成結構甚大之變位與應力，超過使用材料之容許限度而破壞，因此結構物自然頻率的分析乃成為結構設計上之準則之一。
本文利用有限元軟體ABAQUS來分析圓弧角、開孔大小，纖維角度、幾何形狀及軸向壓力大小，對複合疊層曲面板最高基本振動頻率所造成的影響，並應用費邦那西搜尋來求出複合疊層曲面板中，纖維之最佳排列角度及其對應之最高基本振動頻率。
分析結果顯示，層板的最高基本振頻隨軸向壓力與長寬比的增加而減少，並且隨著開孔的擴大與圓弧角的增加而增加，故選擇適當的層板纖維角度與幾何形狀可提高其基本振頻，相信對未來複合層板廣泛使用之目的有所助益。

Because of the composite laminated plates possess excellent characteristics such as high strength, high stiffness, lightweight, and low thermal conductivity, they have been widely used in advanced industrial engineering structures. To avoid structures producing resonance phenomenon and to make materials exceeding the limits allowed, structural analysis of natural frequency becomes the standard on structural design.
In this thesis, ABAQUS finite element software is used to analyze the influence of arc angle, hole size, fiber orientations, geometric shapes and axial pressure on the maximum fundamental frequencies of composite laminated curved panel. The Fibonacci search is employed to find the optimal fiber orientations and its corresponding maximum fundamental frequency in the composite laminated curved panel.
The results of the analyses show that the maximum fundamental frequency not only reduces with the increase of the axial pressure and the panel aspect ratio but also increases with the increase of hole size and arc angle. Therefore, choosing laminates fiber angle and suitable geometry can improve the fundamental frequency. So, it is useful in the design of composite curved panels in the future.

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