A series of Lagrange simulations using an erosion algorithm was conducted to evaluate the influence of design drivers of a separation pyrotechnic device. The parametric investigation included tube components (amount of explosive, type of stuffing material, thickness and length of the tube), structure characteristics (rigidity of the yoke, location of the notch) and technological aspect as the permissible clearance between the tube and the structure. A satisfactory agreement between preliminary experimental results and predictions suggests that the numerical approach has in fact been accurate in the modelling of the system functioning. Trends were drawn that give the ground rules to optimize the device. By means of numerical simulation, the number of experiments are reduced significantly, and consequently the cost of a study.
Contribution of computational simulation to define the design drivers of a pyrotechnic device
Der Beitrag der Computersimulation zur Definition der Auslegung von Treibern von einer pyrotechnischen Anlage
2002
9 Seiten, 13 Bilder, 2 Tabellen, 2 Quellen
Conference paper
English
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