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Analysis of preflutter and postflutter characteristics with motion-matched aerodynamic forces
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cunningham, H. J. |
| Copyright Year | 1978 |
| Description | The development of the equations of dynamic equilibrium for a lifting surface from Lagrange's equation is reviewed and restated for general exponential growing and decaying oscillatory motion. Aerodynamic forces for this motion are obtained from the three-dimensional supersonic kernel function that is newly generalized to complex reduced frequencies. Illustrative calculations were made for two flutter models at supersonic Mach numbers. Preflutter and postflutter motion isodecrement curves were obtained. This type of analysis can be used to predict preflutter behavior during flutter testing and to predict postflutter behavior for use in the design of flutter suppression systems. |
| File Size | 1061644 |
| Page Count | 34 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780020538 |
| Archival Resource Key | ark:/13960/t8ff8kc10 |
| Language | English |
| Publisher Date | 1978-07-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Dynamic Response Lift Devices Surfaces Flutter Analysis Supersonic Flutter Aerodynamic Forces Aeroelasticity Aerodynamic Characteristics Prediction Analysis Techniques Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
