It is found that inherent frequencies are much larger than pumping frequencies and resonance cannot emerge before and after optimization. Fatigue breakage is caused by overload mainly.

结果发现优化前后支架的固有频率都远大于激励频率，不会产生共振，疲劳破坏主要由载荷超重引起的。

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It is found that inherent frequencies are much larger than pumping frequencies and resonance cannot emerge before and after optimization. Fatigue breakage is caused by overload mainly.

结果发现优化前后支架的固有频率都远大于激励频率，不会产生共振，疲劳破坏主要由载荷超重引起的。

youdao