Computer Science
Scientific paper
Jan 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996adspr..18..218s&link_type=abstract
Advances in Space Research, Volume 18, Issue 11, p. 218-218.
Computer Science
Scientific paper
The design project for the 1994 ISU Summer Session was to study a mission to Mars, which included use of an aerobraking manoeuvre. The effect of atmospheric conditions on this manoeuvre has been the subject of further study work between ISU participants as described in this paper. A computer simulation of Mars aerobraking manoeuvres has been developed with 3 degrees of freedom, based on software produced during the Summer Session project. Furthermore a software module was developed for optimisation of aerobraking manoeuvres in order to identify optimal initial trajectories and steering programmes. The optimisation variable in this case was the total heatload on the vehicle, which was minimised. An optimum steering programme was obtained for fixed start and end conditions for use in the simulator. The simulator was run with atmosphere models for different latitudes and seasons in order to study their influence on the manoeuvre. It was found that the different models have a significant influence on the manoeuvre and that the season in which the manoeuvre is performed has to be taken into account for mission planning purposes.
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