為了探討振翅翼的結構強度，本文應用最大應變準則來估測振翅翼之破壞振翅拍頻；實驗方法為在振翅翼骨架的破壞點黏貼應變規，並分別測量不同振翅拍頻時破壞點之應變，取其最大值，再觀察振翅拍頻與破壞點最大應變之關係，並擬定出關係式，最後將骨架材料之臨界應變代入關係式中，藉由外插法估測破壞振翅拍頻。估測完成後，實際將翅膀拍斷，並將實驗得知的實際破壞振翅拍頻與我們估測之破壞振翅拍頻進行比較與討論。

　　In order to analyze the strength of flapping wings, we apply maximum strain criterion to estimate the wing beat frequency of failure in this thesis. In experimental process, we install a strain gauge on failure position of the flapping wing and measure the strains in different flapping frequencies, then record the maximum strain. After the experiment, we observe the relation between flapping frequency and maximum strain and fit curve by this relation. Finally, we take the critical strain into the result of fitting curve in order to estimate the flapping frequency of failure. Our estimation is then compared and verified by measuring the real flapping frequency of failure.

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