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http://dx.doi.org/10.5139/JKSAS.2019.47.9.617

Influence of Design Parameters on the Behavior of Pyrotechnic Separation Nut  

Woo, Jeongmin (Inha University)
Kim, Jeong Ho (Inha University)
Cho, Jin Yeon (Inha University)
Jang, Seung-Gyo (Agency for Defense Development)
Lee, Hyo-Nam (Agency for Defense Development)
Yang, Hee Won (Hanwha Corporation)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.47, no.9, 2019 , pp. 617-628 More about this Journal
Abstract
The currently considered pyrotechnic separation nut is separated through the complicated process, because it has many internal moving parts and two variable-volume chambers connected by the vent hole. Therefore, it has many design parameters. Some of these are the contact angles between internal moving parts, the masses of the internal moving parts, the inner diameter of the push rod protrusion, the initial volumes of the chambers, the mass of the explosive charge, and the diameter of the vent hole. To improve the pyrotechnic separation nut, it is necessary to understand how the behavior of the separation nut is changed according to design parameters. In this point of view, parametric studies are carried out using the previously proposed prediction model for pyrotechnic separation nut behaviors. In each case, the parameter of the interest is changed while the others are kept unchanged. From the results, it is investigated how each design parameter influences the separation behavior.
Keywords
PMD; Pyrotechnic Separation Nut; Segmented Nuts; Parametric Study;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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