本文探討一根貼附有壓電片之Timoshenko曲樑的動態分析；此結構中的第一和第三跨距為Timoshenko樑，第二跨距為壓電複合層曲樑所組成，並使用模態法計算出此結構之模態頻率，進而探討承受移動負載之動態響應。
而為了要瞭解壓電曲樑之力學行為，利用位移場、應力場與應變場的關係推導出此曲形樑之運動方程式，並以解析的方法於求解此結構之模態頻率與其所對應的模態形狀函數，證明相異的模態頻率其所對應的兩組模態函數具有正交性。並討論在不同的幾何參數下對模態頻率的影響。
接著應用模態法於分析曲形樑承受一個移動負載，探討施加一個移動負載對於曲形樑之動態響應特性的影響，並使用Runge-Kutta數值分析法求解動態方程式，計算樑之位移大小和壓電片表面的儲存電荷量。改變壓電片的幾何條件、並施加電阻，探討整體樑的自由端所產生的位移變化以及壓電片收集電荷情形。

The purpose of this thesis is to explore the dynamic analysis of the Timoshenko curved beam with a piezoelectric segment mounted below. The governing equations and boundary conditions of the entire beam are derived via the Hamilton’s principle. The natural frequencies and the corresponding sets of mode shape functions are obtained by analytical method. The method of modal analysis is adopted to investigate the dynamic responses of the host beam and the electric charge accumulated on the surfaces of the piezoelectric segment caused by a traveling load. The effects of traveling velocity of the load and the geometric parameters of the piezoelectric segment on both histories of the displacement of the host beam and the electric charge accumulation on the piezoelectric surfaces are investigated.
There is a critical velocity of the traveling load to cause the absolute maximum deflection of the host beam. Furthermore, there is another critical velocity of the traveling load to induce make the absolute maximum electric charge on the surfaces of the piezoelectric segment. A resistor is implemented to connect the top surface and the bottom surface of the piezoelectric segment to suppress the vibration of the beam. The effects of the geometric parameters of the piezoelectric segment on the decay rate of vibration will also be investigated.

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