Damage Assessment of Hydropower Plant Structures Based on Response Cepstrum Domain Characteristics
Data-driven modeling methods have been widely used in the field of safety monitoring for hydraulic structures;however,they still face several challenges,including interference from vibration response noise,insufficient model generalization capabilities,and overfitting issues.To address the problem of vibration damage in large hydropower station's powerhouse structures,this paper proposes a novel method based on response cepstral domain features.By analyzing the cepstral coefficients of vibration responses and applying principal component analysis,the method effectively captures the dynamic characteristics of structural vibrations while reducing interference from noise and loads,enabling accurate identification and quantification of structural damage.
structural vibration damageresponse features in quefrency domainprincipal component analysisanomaly detection
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