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Aerodynamic Damping in Turbomachinery FREE

[+] Author Affiliations
Y. Cavaillé

Électricité De France, Chatou, France

Paper No. 72-GT-8, pp. V001T01A008; 11 pages
doi:10.1115/72-GT-8
From:
  • ASME 1972 International Gas Turbine and Fluids Engineering Conference and Products Show
  • ASME 1972 International Gas Turbine and Fluids Engineering Conference and Products Show
  • San Francisco, California, USA, March 26–30, 1972
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7981-8
  • Copyright © 1972 by ASME

abstract

An experimental study of aerodynamic damping has been carried out on an axial compressor in which stagger angle, pressure ratio, and relative velocity was varied. The study utilized explosive charges buried in the tip of the blade to provide excitation and found the damping by measuring the log decrement of the vibrations. The blade vibratory mode was pure bending.

Copyright © 1972 by ASME
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