Abstract

FRANCO, S.. On the dynamic excitation of large Industrial Centrifugal Fan Impellers. R&D j. (Matieland, Online) [online]. 1988, vol.4, pp.1-8. ISSN 2309-8988.

When an impeller of a large centrifugal fan is rotating through a pressure field, dynamic excitation of certain impeller modes can take place in a resonance-like fashion. This paper discusses the conditions required for such an excitation to take place and the dynamic amplification factors thereof. Excitation due to aerodynamic and instability effects were not considered.

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