Integrated optimization of trajectories and layout parameters of spacecraft with air-breathing electric propulsion
| Autor: | A.A. Golikov, A.S. Filatyev |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Propellant
Spacecraft business.industry Photovoltaic system Aerospace Engineering Electrically powered spacecraft propulsion Physics::Space Physics Aerodynamic drag Orbit (dynamics) Environmental science Astrophysics::Earth and Planetary Astrophysics Electric power Aerospace engineering business Geocentric orbit |
| Zdroj: | Acta Astronautica. 193:644-652 |
| ISSN: | 0094-5765 |
| Popis: | Spacecraft operation in ultra-low Earth orbits (150–250 km) can provide advantages for carrying out traditional tasks. At the same time, the long-term maintenance of spacecraft in such orbits requires the delivery of a propellant supply from the Earth to compensate the aerodynamic drag. An increase in the lifetime can be achieved with air-breathing electric propulsion (ABEP) using outboard atmospheric gases as a propellant. To ensure ABEP operation, it is necessary to provide the required electric power supply and density of ionized gas. At the same time, lowering the orbit altitude or extension of solar arrays is accompanied by a rise in aerodynamic drag, the required thrust to compensate it and, therefore, the required power supply. In this paper the problem of integrated optimization of the trajectories and layout parameters of spacecraft by the criterion of the ABEP power consumption at the fixed spacecraft volume is considered. Variations in the density and composition of the atmosphere and the periods of shading of the spacecraft are taken into account. An analytical solution is obtained depending on generalized parameters that combine such characteristics as the specific power of solar arrays, total thruster efficiency and aerodynamic drag coefficient. The dependencies of the orbit characteristics enabling the long-term maintenance of spacecraft with ABEP on the generalized parameters are determined. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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