A Bayesian design method for monopropellant engine system reliability qualification test plan

Bo Wang, Ping Jiang and Bo Guo

Reliability Engineering and System Safety, 2024, vol. 248, issue C

Abstract: During the development of systems, traditional System Reliability Qualification Testing (SRQT) is typically utilized to assess whether they meet predefined reliability standards. However, this approach often demands substantial sample sizes and prolonged test durations, rendering it impractical for costly, highly reliable systems with limited sample sizes. Additionally, the extended test duration may not align with practical time-to-market pressures or budget constraints. To overcome these challenges, the study integrates subsystem data into the monopropellant engine system RQT plan's design. By leveraging Monte-Carlo simulation, subsystem data is modeled to create a system parameter distribution, enabling the formulation of SRQT plans based on posterior risks. An example of a monopropellant liquid rocket engine system is provided to demonstrate the advantages and applications of the proposed methodology.

Keywords: Monopropellant engine; Reliability qualification test plan; System reliability; Monte-Carlo; Reliability block diagram (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:248:y:2024:i:c:s0951832024002473

DOI: 10.1016/j.ress.2024.110173

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