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http://dx.doi.org/10.5139/JKSAS.2014.42.5.437

A Methodology for Estimating Reliability and Development Cost of a New Liquid Rocket Engine -focused on Staged Combustion Cycle with LOX/LH2  

Kim, Kyungmee O. (Department of Industrial Engineering, Konkuk University)
Hwang, Junwoo (Department of Industrial Engineering, Konkuk University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.42, no.5, 2014 , pp. 437-443 More about this Journal
Abstract
Engine is one of the most important parts in a rocket for completing its mission successfully. In this paper, we provide a methodology for estimating reliability and development cost of a liquid rocket engine newly developed. To estimate reliability, a baseline engine is selected considering factors whose effects on reliability are unquantifiable. Then reliability of a baseline engine is adjusted to reflect the effect of factors that can be modeled quantitatively. Using the previous Transcost engine cost expressed in terms of mass and the number of hot firing tests, the engine development cost is reexpressed in reliability and thrust requirements. Finally, a numerical example is given to illustrate the application of the methodology to a turbopump rocket engine using staged combustion cycle with LOX/LH2 propellant.
Keywords
Engine thrust; Failure rate; Hot firing test; Engine development cost; Reliability growth;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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