The Summarization of Pyro-shock Testing Data and SRS Level Prediction Methodology

Details The Summarization of Pyro-shock Testing Data and SRS Level Prediction Methodology The Summarization of Pyro-shock Testing Data and SRS Level Prediction Methodology

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.558..549s&link_type=abstract

Proceedings of the 5th International Symposium on Environmental Testing for Space Programmes Noordwijk, The Netherlands (ESA SP-

Computer Science

Shock Test, Distance Attenuation Of Shock Response, Shock Response Spectrum, Environment Test

Scientific paper

Mechanical separation through pyrotechnic shock is widely employed in space vehicle separation. These kinds of pyrotechnic shock devices produce transient loads with high levels of acceleration at different location of satellite. The prediction of acceleration level is significant for the definition of payload shock environment in the earlier design phase and selection of proper accelerometers in the test. This paper summarizes the shock response spectrum (SRS) from the pyrotechnical testing data of several typical satellites from the view points of distance from the source, complex equipment mount structure, etc. The empirical curve for the prediction possibility of pyrotechnic shock level is discussed. At first, the SRS distribution maps at the measure points were compared to understand the shock response environment which may differ from the distance attenuation from the shock source, effects of material and size of structural components, effects of joints and inserts of structural components, etc. Then, the paper discusses the prediction methodologies related to the empirical and extrapolation model presented by NASA-HDBK-7005 is compared to the testing data distribution of several satellites.

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