通过冲击损伤试件的实验分析表明，由于结构损伤的出现压电阻抗谱中的模态频率及其阻抗幅值等特征信息将发生变化。
Experimental results on impact damaged pieces show that the presence of structure damages makes such characteristic information as mode frequency and value of piezoelectric impedance changed.
通过冲击损伤试件的实验分析表明，由于结构损伤的出现压电阻抗谱中的模态频率及其阻抗幅值等特征信息将发生变化。
Experimental results on impact damaged pieces show that the presence of structure damages makes such characteristic information as mode frequency and value of piezoelectric impedance changed.
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