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本文通过对薄板的振动分析,简明地介绍全息干涉法中的时间平均法原理、实验步骤;分析了悬臂梁式薄板在各种长宽比下共振频率及振型的变化规律,并将实验与理论的结果作了比较。
In this paper, through the vibration analysis of thin plates, the principles of time average method and experimental procedures in holographic interferometry are briefly introduced. The changing laws of resonance frequency and mode shape of cantilever thin plate at various aspect ratios are analyzed. The results of the theory were compared.