淡江大學機構典藏:Item 987654321/54188
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/54188


    Title: 雙層壓電複合材料受機電點載荷之暫態波傳問題
    Other Titles: Transient elastic waves propagating in a two-layered piezoelectric medium subjected to the mechanical and electrical concentrated loadings
    Authors: 黃國書;Huang, Kuo-Shu
    Contributors: 淡江大學航空太空工程學系碩士班
    應宜雄;Ing, Yi-Shyong
    Keywords: 壓電;複合層板;反平面;機電點載荷;電位移;Piezoelectric, Bimaterials;Anti-plane;Concentrated loadings;Electric displacement
    Date: 2011
    Issue Date: 2011-06-16 22:08:10 (UTC+8)
    Abstract: 本文乃解析雙異質壓電複合層板承受反平面動力點載荷及平面電位移點載荷時之暫態波傳問題，此複合材料為由兩層不同厚度之壓電材料所構成的雙層複合條板。解析時，首先利用單邊與雙邊拉普拉斯積分轉換法求得兩次轉換域中的剪應力與電位移全場解，再利用Durbin單邊拉普拉斯數值逆轉換法以及延伸的雙邊拉普拉斯數值逆轉換法來求得暫態時域解。數值結果部分則針對不同觀察點位置、不同材料厚度比以及不同負載形式等情況作詳細計算與討論，並將本研究的特例與文獻上之雙層等厚板的靜力解作比較，以驗證本文數值結果的正確性。
    In this study, transient elastic waves propagating in a two-layered piezoelectric medium subjected to anti-plane concentrated loading and in-plane electric displacement loading on the upper and lower free surfaces are investigated. The double-layer composite is constructed of two layers of piezoelectric materials with different thicknesses. The one-sided and the two-sided Laplace transforms are applied to obtain the shear stresses and the electric displacements in the transform domain. And then, the Durbin’s method for one-sided Laplace transform inversion and the extended Durbin’s method for two-sided Laplace transform inversion are used to carry out the numerical inversions. The numerical results for different field points, different ratios of thicknesses and different loading types are evaluated and discussed in detail.
    Appears in Collections:[Graduate Institute & Department of Aerospace Engineering] Thesis

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