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http://dx.doi.org/10.6108/KSPE.2020.24.4.073

Research of Solid Propellant Electrostatic Sensitivity in Confinement  

Choi, Jiyong (Propulsion Center, Hanwha Coporation Daejeon Plant)
Lee, Seonjae (Propulsion Center, Hanwha Coporation Daejeon Plant)
Kim, Jihong (Propulsion Center, Hanwha Coporation Daejeon Plant)
Kim, Jinyong (Propulsion Center, Hanwha Coporation Daejeon Plant)
Park, Euiyong (Propulsion Center, Hanwha Coporation Daejeon Plant)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.24, no.4, 2020 , pp. 73-78 More about this Journal
Abstract
The main reasons that ignite the propellant in the process of producing solid rocket motor are worker mistakes, wrong working process, mechanical defects, impact, friction, electrostatic and short circuits. In the past decades, many accidents have occurred in the process of producing solid rocket motor, accidents investigation have confirmed that the sensitivity of electrostatic is very high under specific condition. In this paper, we analyzed overseas accident cases and measured the sensitivity of electrostatic in the situation of confinement and pressure load by considering the manufacturing process. As a result of the test, the sensitivity of propellant was increased in the situation of confinement and pressure load and the propellant reacted more sensitively to electrostatic in the situation of confinement than pressure load.
Keywords
Electrostatic Discharge; Confinement; Solid Propellant; Hydroxyl-Terminated Polybutadiene(HTPB); Aluminum;
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  • Reference
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