| Flight hardware on missile and space vehicles often require pre-flight evaluation during exposure to high intensity, high frequency shock environments associated with the detonation of pyrotechnic devices on the vehicle. The pyrotechnic shock, or pyroshock, event is generated using a test apparatus capable of replicating field measurements in a controlled, repeatable laboratory setting. In order to improve the process used to design and optimize the test apparatus, an analysis method is needed to predict the structural response within standard test tolerances up to 10 kHz.; Finite element methods are investigated for their application to mechanical impact and pyrotechnic detonation test apparatuses. Acoustic pressure wave propagations from a pyrotechnic detonation in the pyroshock test chamber are evaluated and used to define the analysis forcing functions. Analytical predictions are verified with measured test data for both the mechanical and pyrotechnic detonation test events. |
