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Study of SEP solar array modificationsThe feasibility of modifying the solar electric propulsion (SEP) 66 watt/kilogram, 12.5 kilowatt solar array blanket design to incorporate ultra-low mass blanket technology and to generate conceptual design data by modifying the SEP solar array design to 17.5kW power output was performed. Five modified designs were developed, which substituted present SEP solar array design components with one or more of 50 micron thick solar cells, 75 micron cell coverglasses, and a different blanket substrate developed by GE. A parametric analysis was performed to determine the solar array mast least weight and blanket tension required to maintain a minimum natural frequency of 0.04 Hz. The solar array wing assembly weights and power outputs were calculated, and preliminary cost estimates for flight hardware development, fabrication and qualification were made for each case studied.
Document ID
19780022716
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Antonides, G. J. (Lockheed Missiles and Space Co. Sunnyvale, CA, United States)
Date Acquired
September 3, 2013
Publication Date
July 14, 1978
Subject Category
Energy Production And Conversion
Report/Patent Number
NASA-CR-157403
LMSC-D573788
Accession Number
78N30659
Funding Number(s)
CONTRACT_GRANT: NAS7-100
CONTRACT_GRANT: JPL-955070
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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