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Dynamic Simulation and Analysis of the Space Shuttle Main Engine with Artificially Injected Faults

  • Cha, Jihyoung (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Ha, Chulsu (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Koo, Jaye (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Ko, Sangho (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
  • Received : 2016.01.25
  • Accepted : 2016.10.22
  • Published : 2016.12.30

Abstract

Securing the safety and the reliability of liquid-propellant rocket engines (LREs) for space vehicles is indispensable as engines consist of many complex components and operate under extremely high energy-dense conditions. Thus, health monitoring has become a mandatory requirement, especially for the reusable LREs that are currently being developed. In this context, a dynamic simulation program based on MATLAB/Simulink was developed in the current research on the Space Shuttle Main Engine (SSME), a partly reusable engine. Then, a series of fault simulations using this program was conducted: at a steady state operating condition (104% Rated Propulsion Level), various simulated fault conditions were artificially injected into the simulation models for the five major valves, the pumps, and the turbines of the SSME. The consequent effects due to each fault were analyzed based on the time responses of the major parameters of the engine. It is believed that this research topic is an essential pre-step for the development of fault detection and diagnosis algorithms for reusable engines in the future.

Keywords

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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