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Multi-Frequency Signal Detection Based on Frequency Exchange and Re-Scaling Stochastic Resonance and Its Application to Weak Fault Diagnosis

Mechanical fault diagnosis usually requires not only identification of the fault characteristic frequency, but also detection of its second and/or higher harmonics. However, it is difficult to detect a multi-frequency fault signal through the existing Stochastic Resonance (SR) methods, because the c...

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Detalles Bibliográficos
Autores principales: Liu, Jinjun, Leng, Yonggang, Lai, Zhihui, Fan, Shengbo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5981854/
https://www.ncbi.nlm.nih.gov/pubmed/29693577
http://dx.doi.org/10.3390/s18051325