Multi-Exciter Vibroacoustic Simulation of Hypersonic Flight Vibration
Many aerospace structures must survive severe high frequency, hypersonic, random vibration during their flights. The random vibrations are generated by the turbulent boundary layer developed along the exterior of the structures during flight. These environments have not been simulated very well in the past using a fixed-based, single exciter input with an upper frequency range of 2 kHz. This study investigates the possibility of using acoustic ardor independently controlled multiple exciters to more accurately simulate hypersonic flight vibration. The test configuration, equipment, and methodology are described. Comparisons with actual flight measurements and previous single exciter simulations are also presented.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 14835
- Report Number(s):
- SAND99-1676C; TRN: AH200130%%42
- Resource Relation:
- Conference: 70th Shock and Vibration Symposium, Albuquerque, NM (US), 11/15/1999--11/19/1999; Other Information: PBD: 11 Nov 1999
- Country of Publication:
- United States
- Language:
- English
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