De-rating design and analysis for safety and reliability

Author

Zhaofeng Huang

Author_Institution

Internal Mail Code RFA45, Aerojet Rocketdyne, Canoga Park, CA, USA

fYear

2014

fDate

27-30 Jan. 2014

Firstpage

1

Lastpage

7

Abstract

In this paper, the power level de-rating concept for high energy or long life systems will be presented. The relationship between de-rating and various generic failure modes will be discussed. Answers to some de-rating reliability related questions will be provided along with a generic de-rating reliability analysis methodology and modeling approach. The paper will also discuss the interrelationships among propulsion engine de-rating, engine out design and engine health management system with illustrative example. With the derating design, it is shown that the safety and reliability of a launch vehicle with a liquid propulsion system can be enhanced.

Keywords

aerospace propulsion; condition monitoring; design engineering; failure analysis; reliability; rocket engines; safety; derating design; engine health management; generic derating reliability analysis; generic failure modes; launch vehicles; liquid propulsion engine; power level derating; safety; Analytical models; Engines; Fatigue; Mathematical model; Propulsion; Reliability engineering; De-rating; Engine-out; Failure Modes; Reliability; Safety;

fLanguage

English

Publisher

ieee

Conference_Titel

Reliability and Maintainability Symposium (RAMS), 2014 Annual

Conference_Location

Colorado Springs, CO

Print_ISBN

978-1-4799-2847-7

Type

conf

DOI

10.1109/RAMS.2014.6798442

Filename

6798442