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The effect of steady aerodynamic loading on the flutter stability of turbomachinery blading
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Smith, Todd E. Kadambi, Jaikrishnan R. |
| Copyright Year | 1990 |
| Description | An 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. |
| File Size | 731361 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910010166 |
| Archival Resource Key | ark:/13960/t78s9n139 |
| Language | English |
| Publisher Date | 1990-12-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Degrees of Freedom Steady Flow Flow Theory Pressure Distribution Turbomachinery Airfoils Aerodynamic Coefficients Unsteady Flow Displacement Potential Flow Cascade Flow Compressor Blades Airfoil Profiles Unsteady Aerodynamics Bending Flutter Aeroelasticity Torsion Camber Aerodynamic Loads Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
