Progress in pyroshock simulation for qualification tests: A systematic literature review

Abstract

Spacecraft and their onboard equipment are subjected to significant dynamic loads, particularly when the activation of pyrotechnic devices induces intense high-frequency shocks, known as pyroshocks, which propagate throughout the entire structure and can cause critical damages. Qualification tests are needed to ensure aerospace equipment can withstand impulsive loads and therefore test rigs and simulation models are designed to replicate real-world pyroshocks while pursuing repeatability, accuracy, and safety.

This paper systematically categorizes and analyzes existing research papers on pyroshock simulation techniques, examining both experimental and numerical approaches. Scientific databases were queried but only a selection of the most relevant papers is presented and labeled, according the publication year, the purpose, the physical domain, the numerical method, the kind of fixture, and the excitation method. Additionally, a shorter review on contact mechanics is included to offer complementary insights, considering its relevance to pyroshock simulations.