Propulsion System Flow Stability Program (Dynamic). Part XX. Computer Programs for the Root Locus Analysis of Linearized Turbojet and Turbofan Control Systems
Report Number: AFAPL TR 68-142 Part XX Author(s): Lum, Evan L. Corporate Author: North American Rockwell Corp Los Angeles CA Los Angeles Div Laboratory: Air Force Aero Propulsion Laboratory Date of Publication: 1968-12 Pages: 95 Contract: F33615-67-C-1848 AD Number: AD0853262
Abstract: This part describes computer programs developed to handle the computational tasks for the linear stability analysis of propulsion controls by root locus techniques. The descriptions, flowcharts, and Fortran program listings of two main programs TJET and TFAN developed for the analysis of turbojet and turbofan engine control systems are presented. Also presented are the descriptions of three subroutines specially developed to facilitate data handling for this study. Examples are given to illustrate the application of computer programs TJET and TFAN. TJET and TFAN have been valuable in the linear analysis of the propulsion system, However, it is recommended that these computer programs be expanded to include the capability of analyzing coupled control loops and to include a limited transient analysis.
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This report has the following parts/volumes:
Propulsion System Flow Stability Program (Dynamic). Part VIII. Model for Predicting Compressor Performance with Combined Circumferential and Radial Distortion - Computer Program.
AFAPL TR 68-142 Part VIII
Propulsion System Flow Stability Program (Dynamic). Part XII. Unsteady Combustion in Duct Burners and Afterburners
AFAPL TR 68-142 Part XII
Propulsion System Flow Stability Program (Dynamic). Part XVI. Survey of Sensors Applicable to the Control of Aircraft Propulsion Systems
AFAPL TR 68-142 Part XVI
Propulsion System Flow Stability Program (Dynamic). Part XVII. Propulsion System Simulation Digital Computer Program Format and Routines
AFAPL TR 68-142 Part XVII