Author Type

Graduate Student

Date of Award

1990

Document Type

Thesis

Publication Status

Version of Record

Submission Date

October 2026

Thesis/Dissertation Advisor [Chair]

Duyar, Ahmet

Abstract

Accurate representation of the dynamic behaviour of the Space Shuttle Main Engine (SSME) is required for various diagnostic, design and evaluation purposes. A complete nonlinear dynamic simulation of the SSME developed by the Rocketdyne Division of the Rockwell International Corporation is difficult to use due to its size and complexity, hence the need to obtain a simplified model of the SSME to generate data describing the normal modes of operation in real time is relevant and also the objective of this thesis. The process involved in obtaining such a model are: (1) To determine the point models at various operating points and (2) To obtain a comprehensive piece-wise linear model by regressing the parameters of the point models with variables describing the operating points. The comprehensive model obtained by using such a scheme is presented along with the point models. The nonlinearities inherent in the engine's operation are modelled as separate blocks and are added to linearized model. Finally the validity of the linked model is demonstrated with suitable test signals.

Extent

90 p.

Comments

College of Engineering and Computer Science|FAU Electronic Theses and Dissertations Collection|Thesis (M.S.)--Florida Atlantic University, 1990.|College of Engineering and Computer Science

Identifier

FADT14644

Format

pdf

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