臺灣博碩士論文加值系統

本研究提出一個有系統的方法，計算由於圓形剛性板的和諧振動，造成在層狀半空間層任何特定的位置上的振動。在此研究中，使用在圓柱坐標下的三維波動方程之解析解。在層狀半空間中任何特定位置的振動可由半無限積分中積分其波數k由0到無限大得到解析解，由於波數k消減的自然性質，其數值積分可用一個確定的上限值 取代無限大而不會使精度下降。上限值 的選擇與無因次化的振動頻率和無因次化的距離有關。由數值結果得知層內位移成波動狀衰減。本研究之方法可有效且準確的預測由剛性圓盤加載和諧載重所造成之層狀半空間層內振動位移。

第一章 緒論 1
文獻回顧 1
第二章 層狀半空間之解析模型 3
2.1波動方程式 3
2.2 層狀介質土壤應力與位移 6
2.3層內位移與應力 9
2.4 線性應力分布 15
第三章 數值分析 18
3.1 假設模型 18
3.2 數據結果 20
第四章 結論與建議 23
4.1結論: 23
4.2建議: 23
參考文獻 24

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