Effects of damping and damping mistuning on the forced vibration response of bladed disks

Chung Chih Lin, Marc Mignolet

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The effects of blade-to-blade variations in the damping coefficients on the forced response of a bladed disk are investigated. It is found that this nonuniformity of the disk can lead to variations in the blades' amplitudes of response which are similar, in magnitude, to those obtained with stiffness mistuning but are potentially more dangerous because of the skewness of the distribution toward large amplitudes. The influence of various structural parameters on the scatter of blade amplitudes is also studied. Finally, the adequacy of the combined Closed-Form Perturbation (CFP) method is demonstrated by comparison with simulation results.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers (Paper)
PublisherPubl by ASME
StatePublished - 1993
EventInternational Gas Turbine and Aeroengine Congress and Exposition - Cincinnati, OH, USA
Duration: May 24 1993May 27 1993

Other

OtherInternational Gas Turbine and Aeroengine Congress and Exposition
CityCincinnati, OH, USA
Period5/24/935/27/93

ASJC Scopus subject areas

  • Mechanical Engineering

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    Lin, C. C., & Mignolet, M. (1993). Effects of damping and damping mistuning on the forced vibration response of bladed disks. In American Society of Mechanical Engineers (Paper) Publ by ASME.