Application of wave propagation to pyroshock analysis

Issue title: Dedicated to Professor Bruno Piombo

Article type: Research Article

Authors: Gherlone, M. | Lomario, D. | Mattone, M. | Ruotolo, R.

Affiliations: Department of Aerospace Engineering, Politecnico di Torino, corso Duca degli Abruzzi 24, Torino, Italy

Note: [] Corresponding author: Romualdo RUOTOLO, Department of Aerospace Engineering, Politecnico di Torino, c.so Duca degli Abruzzi 24, Torino, 10129, Italy. Fax: +39 011 5646899. Currently employed at Fiat-GM Powertrain Italia. E-mail: [email protected]

Abstract: Pyroshocks are high frequency transients due to pyrotechnic devices used in aerospace engineering in order to deploy solar arrays and antennae, separate subsystems from the spacecraft or separate the spacecraft itself from the base stage booster; their prediction is usually complex and very time consuming. The aim of this article is to investigate on the application of the analysis of transmission of waves in elastic media in order to predict the dynamic response to pyroshocks. The work is completed by numerical examples, related to components of common use in the aerospace engineering field, showing the comparison between results obtained by using both MSC-NASTRAN and this novel application of wave propagation analysis.

Journal: Shock and Vibration, vol. 11, no. 3-4, pp. 145-156, 2004