NDLI: Evaluation of space shuttle main engine fluid dynamic frequency response characteristics

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Evaluation of space shuttle main engine fluid dynamic frequency response characteristics

Content Provider	NASA Technical Reports Server (NTRS)
Author	Gardner, T. G.
Copyright Year	1980
Description	In order to determine the POGO stability characteristics of the space shuttle main engine liquid oxygen (LOX) system, the fluid dynamic frequency response functions between elements in the SSME LOX system was evaluated, both analytically and experimentally. For the experimental data evaluation, a software package was written for the Hewlett-Packard 5451C Fourier analyzer. The POGO analysis software is documented and consists of five separate segments. Each segment is stored on the 5451C disc as an individual program and performs its own unique function. Two separate data reduction methods, a signal calibration, coherence or pulser signal based frequency response function blanking, and automatic plotting features are included in the program. The 5451C allows variable parameter transfer from program to program. This feature is used to advantage and requires only minimal user interface during the data reduction process. Experimental results are included and compared with the analytical predictions in order to adjust the general model and arrive at a realistic simulation of the POGO characteristics.
File Size	10130898
Page Count	145
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19810004576
Archival Resource Key	ark:/13960/t0fv3cq4g
Language	English
Publisher Date	1980-10-01
Access Restriction	Open
Subject Keyword	Spacecraft Propulsion And Power Dynamic Response Systems Stability Turbine Pumps Pogo Effects Fluid Dynamics Liquid Oxygen Space Shuttle Main Engine Heat Exchangers Flow Charts Engine Parts Axial Flow Computer Programs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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