Fan blade vibration analysis via dynamic data system technique.

S. G. Kapoor, G. L. Fish

Research output: Contribution to journalArticlepeer-review


A recently developed Dynamic Data System (DDS) approach is proposed to analyze the axial fan blade vibrations. The technique develops mathematical models from the time history of strain gauge signals. The DDS models provide good estimates of system natural frequencies, damping ratios associated with each natural frequency, and the power distribution of the frequencies in the data from a relatively few number of data points. Finite element analysis confirms the results of natural frequencies obtained from the DDS models. It is shown that the damping may be a potential measure of how near resonance the system is being excited. The DDS models may also be used as a diagnostic of production line performance and may help blade designers to develop a better design of rotating machinery. (A)

Original languageEnglish (US)
Journal[No source information available]
StatePublished - Jan 1 1983
Externally publishedYes

ASJC Scopus subject areas

  • Mechanical Engineering

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