Free Vibration of a Rotating Disk–Blade Coupled System With Shrouds PUBLIC ACCESS

[+] Author Affiliations
Yukinori Kobayashi, Gen Yamada

Hokkaido University, Sapporo, Japan

Takahiro Tomioka

Railway Technical Research Institute, Kokubunji, Japan

Paper No. 96-GT-022, pp. V005T14A005; 7 pages
  • ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General
  • Birmingham, UK, June 10–13, 1996
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7876-7
  • Copyright © 1996 by ASME


The free vibration of rotating disk–blade coupled system is investigated by the Ritz method. Centrifugal effects due to rotation are taken into account for both of the disk and blades. The boundary and continuity conditions between the disk and blades are satisfied by means of artificial springs introduced at their joints, and the orthogonal polynomials generated by using the Gram–Schmidt process are employed as admissible functions for both of the disk and blades. Frequency parameters and mode shapes of vibration are obtained to investigate the vibration of the disk–blade coupled system.

Copyright © 1996 by ASME
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