Damping prediction for stalled rotor flap-lag stability with experimental correlation


Journal Article

A direct numerical time marching integration is used to compute the transient response (free oscillation) of the flap-lag motion of a stalled rotor. A time-domain quasilinear model identification technique is applied to identify the damping and frequency for the regressing mode, except for the chaotic lag response when stall occurs. A numerical example and correlation with the experimental results (Ref [4]) are provided. It is found that the present theoretical method has improved the flap-lag stability analysis with respect to agreement with experiment compared to earlier theoretical results. © 1995 American Society of Mechanical Engineers.

Full Text

Duke Authors

Cited Authors

  • Tang, DM; Dowell, EH

Published Date

  • January 1, 1995

Published In

Volume / Issue

  • 48 / 11

Start / End Page

  • S189 - S194

International Standard Serial Number (ISSN)

  • 0003-6900

Digital Object Identifier (DOI)

  • 10.1115/1.3005070

Citation Source

  • Scopus