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Development of an Intelligent Monitoring and Control System for a Heterogeneous Numerical Propulsion System Simulation


Abdollah A. Afjeh*, Patrick T. Homer**, Henry Lewandowski***,
John A. Reed*, and Richard D. Schlichting**

Cleveland State University***, The University of Arizona**, University of Toledo*

Abstract

The NASA Numerical Propulsion System Simulation (
NPSS) project is exploring the use of computer simulation to facilitate the design of new jet engines. Several key issues raised in this research are being examined in an NPSS-related research project: zooming, monitoring and control, and support for heterogeneity. The design of a simulation executive that addresses each of these issues is described. In this work, the strategy of zooming, which allows codes that model at different levels of fidelity to be integrated within a single simulation, is applied to the fan component of a turbofan propulsion system. A prototype monitoring and control system has been designed for this simulation to support experimentation with expert system techniques for active control of the simulation. An interconnection system provides a transparent means of connecting the heterogeneous systems that comprise the prototype.

Proceedings 28th Annual Simulation Symposium, Phoenix AZ, (April 1995), 278-287.

Abstract
1. - Introduction
2. - Simulation Strategy
2.1 - Zooming
2.2 - Simulation Tools
2.3 - Prototype Zooming System
3. - Intelligent Monitoring and Control
3.1 - Control Strategy
3.2 - Control System Components
3.3 - Prototype Monitoring and Control System
4. - Current Status and Future Directions
4.1 - Current State
4.2 - Future Directions
Acknowledgments
References

Engine Simulation: Intelligent Monitoring and Control
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