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Refurbishment cost study of the thermal protection system of a space shuttle vehicle. Phase 2: SupplementThe labor costs and techniques associated with the maintenance of a bonded-on ablator thermal protection system (TPS) concept, suitable for Space Shuttle application are examined. The baseline approach to TPS attachment involves bonding reusable surface insulation (RSI) and/or ablators to the structural skin of the vehicle. The RSI and/or ablators in the form of either flat or contoured panels can be bonded to the skin of the primary structure directly or by way of an intermediate silicone foam rubber pad. The use of foam rubber pads permits the use of buckling skins and protruding heat rivets on the primary structure, minimizing structural weight and fabrication costs. In the case of the RSI, the foam rubber pad serves as a required strain isolator. For purpose of comparison, test data were obtained for an installation with and without the use of a strain isolator. The refurbishment aspects of a bonded-on RSI concept (without a strain isolator) were examined experimentally along with several externally removable panel concepts employing both ablator and RSI TPS. The various concepts are compared.
Document ID
19720020272
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Haas, D. W. (McDonnell-Douglas Astronautics Co. Saint Louis, MO, United States)
Gerler, V. M. (McDonnell-Douglas Astronautics Co. Saint Louis, MO, United States)
Date Acquired
August 6, 2013
Publication Date
July 12, 1972
Subject Category
Space Vehicles
Report/Patent Number
NASA-CR-112034-1
Accession Number
72N27922
Funding Number(s)
CONTRACT_GRANT: NAS1-10990
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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