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Study of auxiliary propulsion requirements for large space systems. Volume 1: Executive summaryAn insight into auxiliary propulsion systems (APS) requirements for large space systems (LSS) launchable by a single shuttle is presented. In an effort to scope the APS requirements for LSS, a set of generic LSSs were defined. For each generic LSS class a specific structural configuration, representative of that most likely to serve the needs of the 1980's and 1990's was defined. The environmental disturbance forces and torques which would be acting on each specific structural configuration in LEO and GEO orbits were then determined. Auxiliary propulsion requirements were determined as a function of: generic class specific configuration, size and openness of structure, orbit, angle of orientation, correction frequency, duty cycle, number and location of thrusters and direction of thrusters and APS/LSS interactions. The results of this analysis were used to define the APS characteristics of: (1) number and distribution of thrusters, (2) thruster modulation, (3) thrust level, (4) mission energy requirements, (5) total APS mass component breakdown, and (6) state of the art adequacy/deficiency.
Document ID
19840004158
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Smith, W. W. (Boeing Aerospace Co. Seattle, WA, United States)
Machles, G. W. (Boeing Aerospace Co. Seattle, WA, United States)
Date Acquired
September 4, 2013
Publication Date
September 1, 1983
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
NAS 1.26:168193-VOL-1
NASA-CR-168193-VOL-1
D180-27728-1
Accession Number
84N12226
Funding Number(s)
CONTRACT_GRANT: NAS3-23248
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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