臺灣博碩士論文加值系統

本文首先以靜態推頂四邊夾持鋁合金平板之電子剪切光斑影像, 與ANSYS結果比較, 以驗證電子剪切光斑干涉術於全域量測位移梯度之正確性, 進而以模態分析法與電子剪 切光斑干涉術量測四邊夾持鋁合金平板振動之振頻模態及位移梯度分布, 並與ANSYS結果比較; 最後應用於複雜邊界條件之印刷電路板振動之振頻及全域位移梯度量測, 比較含陶瓷元件及完整平板之印刷電路板振頻及模態之差異, 並以模態分析資料配合電子剪切光斑影像作曲面湊配(fit), 進而微分求得振動印刷電路板不同振頻下最大應力之所在.

In this dissertation, the accuracy of displacement derivatives mesurement of electronic shearography was first examined. And then electronic shearography was applied to the virbrating aluminum plate with four edges clamped boundary condition. Finally, electronic shearography and modal analysis method were applied to the vibrating printed ciccuit boards, the location of maximum stresses occured wereobtained.