Diagnostic for Mechanical Systems through Analysing Variations in Vibration Signatures
This paper presents a monitoring and diagnosis strategy and methodology for mechanical structures through analysing var iations in vibration signatures. As tor dynamic behavior of structures in machinery, equipment and installations, they are all considered as the linear mechanical systems. The occurrence of faults causes changes in physical parameters and/or excitation directly. Then, it is followed by varlat ions in natural features and response. These variations in vibration signatures reflect the existence and property of faults to some extent. Based on the reliationships between faults and variations and sensitivity analysis, the methods to monitor and diagnose faults in mechanical systems are described.
KeywordsMode Shape Modal Parameter Sensitive Region Fault Source Diagnosis Strategy
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