On Shock Environment of Solar Arrays of Chinese Lunar-probing Satellite in the Stage of Phasing Orbit
- Paper number
IAC-05-C2.2.10
- Author
Mr. Yueyu Wang, China Academy of Space Technology (CAST), China
- Year
2005
- Abstract
Now China is developing its own first lunar-probing satellite in order to execute a global, comprehensive, and integrated scientific exploration to the useful energy sources and resource of moon. This satellite will first enter into a big elliptic orbit(i.e. super GTO), then into the stage of phasing orbit. In this stage, a gradual increase in energy of the super GTO is gained after the lunar-probing satellite completes orbital perigee maneuver 3 times. As a result, the super GTO becomes Earth-to-moon transfer orbit with apogee height of about 380,000km. During orbital perigee maneuver, the firing of orbital thruster of lunar-probing satellite will produce a transient shock environment at the root-hinge of solar arrays of lunar-probing satellite. The refined structural dynamics model of lunar-probing satellite in its on-orbit status was achieved using commercial software and finite element analyses to shock load time history at root-hinge of solar arrays during the firing of orbital thruster were carried out by using time-domain response analysis(TRA) method. The analytical results showed that the amplitudes of shock load satisfy the strength requirement of root-hinge structure of lunar-probing satellite. This paper presents an effective and practical technical approach which deals with this kind of shock environment problem and important reference for the system engineering and structural design of lunar-probing satellite.
- Abstract document
- Manuscript document
IAC-05-C2.2.10.pdf (🔒 authorized access only).
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