An Application of Finite Element Methods to Panel Flutter Optimization
Item
- Title
- An Application of Finite Element Methods to Panel Flutter Optimization
- Description
- This paper presents the results of an aeroelastic optimization study. The weight of a panel in high Mach number supersonic flow is minimized subject to the requirement that the critical aerodynamic parameter for flutter be held within prescribed limits. Panel equilibrium is described with finite element techniques. The study shows that finite element techniques, when used together with standard optimization methods, yield accurate results to this difficult problem. The numerical results of the investigation are compared to other converged numerical results to illustrate accuracy. The optimization mechanism itself is studied and discussed to provide qualitative results which may be applied to other aeroelastic optimization problems. The results of the paper show that, with an effective finite element model, weight savings and mass distributions found with finite element methods are comparable to those found by more complicated methods.
- Creator
- Weisshaar, Terry A.
- Abstract
- This paper presents the results of an aeroelastic optimization study. The weight of a panel in high Mach number supersonic flow is minimized subject to the requirement that the critical aerodynamic parameter for flutter be held within prescribed limits. Panel equilibrium is described with finite element techniques. The study shows that finite element techniques, when used together with standard optimization methods, yield accurate results to this difficult problem. The numerical results of the investigation are compared to other converged numerical results to illustrate accuracy. The optimization mechanism itself is studied and discussed to provide qualitative results which may be applied to other aeroelastic optimization problems. The results of the paper show that, with an effective finite element model, weight savings and mass distributions found with finite element methods are comparable to those found by more complicated methods.
- Corporate Author
- University of Maryland
- Report Number
- AFFDL TR 71-160 p. 537-556
- Report Availability
- Full text available
- Publisher
- Wright-Patterson Air Force Base, OH : Air Force Flight Dynamics Laboratory, Air Force Systems Command and Air Force Institute of Technology, Air University
- Date
- 1973
- Type
- article
- Date Issued
- 1973-12
- Provenance
- Bombardier/Aero
- Distribution Classification
- 1
- Distribution Conflict
- No
- DTIC Record Exists
- No
- Format
- 1 online resource (20 pages) : ill.
- Extent
- 20
- Identifier
- AD0785968
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| Title | Class |
|---|---|
| Proceedings of the Third Conference on Matrix Methods in Structural Mechanics: Proceedings of the Conference held at Wright-Patterson Air Force Base, Ohio 19-21 October 1971 |