Model based IVHM system for the solid rocket booster
Abstract
We report progress in the development of a model-based hybrid probabilistic approach to an on-board IVHM for solid rocket boosters (SRBs) that can accommodate the abrupt changes of the model parameters in various nonlinear dynamical off-nominal regimes. The work is related to the ORION mission program. Specifically, a case breach fault for SRBs is considered that takes into account burning a hole through the rocket case, as well as ablation of the nozzle throat under the action of hot gas flow. A high-fidelity model (HFM) of the fault is developed in FLUENT in cylindrical symmetry. The results of the FLUENT simulations are shown to be in good agreement with quasi-stationary approximation and analytical solution of a system of one-dimensional partial differential equations (PDEs) for the gas flow in the combustion chamber and in the hole through the rocket case.
Keywords
Cite
@article{arxiv.0807.1519,
title = {Model based IVHM system for the solid rocket booster},
author = {D. G. Luchinsky and V. V. Osipov and V. N. Smelyanskiy and D. A. Timucin and S. Uckun},
journal= {arXiv preprint arXiv:0807.1519},
year = {2009}
}
Comments
15 pages, 8 figures