Sensitivity study of Space Station Freedom operations cost and selected user resourcesThe results of sensitivity studies performed to estimate probable ranges for four key Space Station parameters using the Space Station Freedom's Model for Estimating Space Station Operations Cost (MESSOC) are discussed. The variables examined are grouped into five main categories: logistics, crew, design, space transportation system, and training. The modification of these variables implies programmatic decisions in areas such as orbital replacement unit (ORU) design, investment in repair capabilities, and crew operations policies. The model utilizes a wide range of algorithms and an extensive trial logistics data base to represent Space Station operations. The trial logistics data base consists largely of a collection of the ORUs that comprise the mature station, and their characteristics based on current engineering understanding of the Space Station. A nondimensional approach is used to examine the relative importance of variables on parameters.
Document ID
19900048954
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Accola, Anne (Grumman Aerospace Corp. Reston, VA, United States)
Fincannon, H. J. (Grumman Aerospace Corp. Reston, VA, United States)
Williams, Gregory J. (NASA Space Station Freedom Program Office Reston, VA, United States)
Meier, R. Timothy (Grumman Corp. Space Station Program Support Div., Reston, VA, United States)