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Improve SSME power balance modelEffort was dedicated to development and testing of a formal strategy for reconciling uncertain test data with physically limited computational prediction. Specific weaknesses in the logical structure of the current Power Balance Model (PBM) version are described with emphasis given to the main routing subroutines BAL and DATRED. Selected results from a variational analysis of PBM predictions are compared to Technology Test Bed (TTB) variational study results to assess PBM predictive capability. The motivation for systematic integration of uncertain test data with computational predictions based on limited physical models is provided. The theoretical foundation for the reconciliation strategy developed in this effort is presented, and results of a reconciliation analysis of the Space Shuttle Main Engine (SSME) high pressure fuel side turbopump subsystem are examined.
Document ID
19930001568
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Karr, Gerald R. (Alabama Univ. Huntsville, AL, United States)
Date Acquired
September 6, 2013
Publication Date
September 9, 1992
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
NAS 1.26:184464
NASA-CR-184464
Accession Number
93N10756
Funding Number(s)
CONTRACT_GRANT: NAS8-36955
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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