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Thermal response of an aeroassisted orbital-transfer vehicle with a conical drag brakeAs an aeroassisted orbital-transfer vehicle (AOTV) goes through an aerobraking maneuver, a significant amount of heat is generated. In this paper, the thermal response of a specific AOTV to this aerobrake heating is examined. The vehicle has a 70 deg, conical drag-brake heat shield attached to a cylindrical body which contains the payload. The heat shield is made of silica fabric. The heat-shield thickness is varied from that of a thin cloth to a 1.5-cm blanket. The fabric thickness, the radiation absorptivity of the vehicle surface materials, and radiation from the wake are all significant parameters in the thermal response to the heating produced by the braking maneuver. The maximum temperatures occur in the vicinity of the interface between the body and the conical heat shield.
Document ID
19840054674
Document Type
Conference Paper
Authors
Pitts, W. C. (NASA Ames Research Center Moffett Field, CA, United States)
Murbach, M. S. (Informatics General Corp. Palo Alto, CA, United States)
Date Acquired
August 12, 2013
Publication Date
June 1, 1984
Subject Category
SPACECRAFT DESIGN, TESTING AND PERFORMANCE
Report/Patent Number
AIAA PAPER 84-1712
Distribution Limits
Public
Copyright
Other