本文針對複合材料補片修補含裂縫鋁合金平板之振動特性進行分析,並以模態分析法(Model Testing Method)和振幅變動電子光斑影像干涉術(Amplitude-Fluctuation ESPI)兩種實驗方法獲得振頻及振型,最後並結合結構動力學的理論基礎判斷各種疊層之修補效應。
In this study, the modal testing method and Amplitude-Fluctuation ESPI were used to investigate the vibration characteristics of aluminum alloy plates containing a crack patched by the Composite material. The natural frequencies and the corresponding mode shapes were obtained in the experiments. The structural dynamics theory was also adopted to investigate the patched effects.