Computer Science – Performance
Scientific paper
Jan 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002iaf..confe.506m&link_type=abstract
IAF abstracts, 34th COSPAR Scientific Assembly, The Second World Space Congress, held 10-19 October, 2002 in Houston, TX, USA.,
Computer Science
Performance
Scientific paper
success or failure of the mission directly. In general, the SAR Antenna is very large, about 9500mm×4000mm in the deployed configuration. The SAR Antenna system is also very complicated, consisting of 5 antenna panels, deployment mechanism, hinges, tie-downs, extendible support structure and drivers. complicated space heat fluxes( the solar radiation, earth IR and albedo) and so on. However, the SAR Antenna in the orbital flying is directly exposed to the bad space environment. If the thermal design is not correct, the unreasonable temperature distribution of the SAR Antenna will be resulted in, which maybe causes too large thermal deformation to ensure the normal deployment and operation performance of the SAR Antenna. So it is necessary to conduct the thermal design for the SAR Antenna. respectively. The temperature distributions and the worst gradients of the SAR Antenna were obtained in the different cases. These results provide an important theoretic reference for the thermal design of the SAR Antenna. Based on the thermal analysis, some important conclusions are obtained. the software NEVADA and SINDA/G.
Jiang Hai
Liu Qiaohong
Ma Huitao
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