Dynamic characteristics of a Space Station Freedom Mars evolution reference configurationOne concept for a manned mission to Mars uses as a transportation mode an evolutionary version of Space Station Freedom (SSF), termed the Mars Evolution Reference Configuration (MERC). The MERC is configured by adding to SSF dual keels, an upper and lower boom, additional laboratory and habitation modules, increased power, and an assembly platform. A finite-element model of the MERC was formulated to investigate the expected low frequency modes, and its variations with the addition of large payload. A basic reboost procedure using near-continuous firing of reaction control system jets is described with the closed-loop attitude control system. The elastic dynamic behavior at critical points during a reboost of the MERC, both with and without the Mars piloted vehicle installed, is examined.
Document ID
19900032947
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ayers, J. Kirk (NASA Langley Research Center Hampton, VA, United States)
Lim, Tae W. (Lockheed Engineering and Sciences Co. Hampton, VA, United States)
Cooper, Paul A. (NASA Langley Research Center Hampton, VA, United States)