NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
The effect of steady aerodynamic loading on the flutter stability of turbomachinery bladingAn aeroelastic analysis is presented which accounts for the effect of steady aerodynamic loading on the aeroelastic stability of a cascade of compressor blades. The aeroelastic model is a two degree of freedom model having bending and torsional displacements. A linearized unsteady potential flow theory is used to determine the unsteady aerodynamic response coefficients for the aeroelastic analysis. The steady aerodynamic loading was caused by the addition of airfoil thickness and camber and steady flow incidence. The importance of steady loading on the airfoil unsteady pressure distribution is demonstrated. Additionally, the effect of steady loading on the tuned flutter behavior and flutter boundaries indicates that neglecting either airfoil thickness, camber or incidence could result in nonconservative estimates of flutter behavior.
Document ID
19920032950
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Smith, Todd E.
(NASA Lewis Research Center Cleveland; Sverdrup Technology, Inc., Brook Park, OH, United States)
Kadambi, Jaikrishnan R.
(Case Western Reserve University Cleveland, OH, United States)
Date Acquired
August 15, 2013
Publication Date
June 1, 1991
Subject Category
Aerodynamics
Report/Patent Number
ASME PAPER 91-GT-130
Accession Number
92A15574
Funding Number(s)
CONTRACT_GRANT: NAS3-25266
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available