Low-cost ground simulation system for attitude and orbit control of low earth orbit satellites

Abstract

The application discloses a low-cost low-orbit satellite attitude and orbit control ground simulation system, and a technical solution for realizing the purpose of the application is divided into two steps of fixed-axis attitude adjustment and free attitude and orbit control, required devices include a micro wind tunnel mechanism (1) and a support mechanism, the support mechanism is divided into a fixed-axis support (2) and a free support (3). The micro wind tunnel mechanism (1) is used for simulating 300KM atmosphere in ground tests. The micro wind tunnel mechanism (1) is an open-circuit wind tunnel in the experiment. The micro wind tunnel mechanism (1) is divided into an experimental section (1C), a steady flow section (1B) and a large-angle diffusion section (1A); the atmospheric sail (4) is first installed on the support mechanism and then placed in the experimental section (1C). The airflow generated by the fan is injected into the large-angle diffusion section (1A) through the fan sleeve (5), flows through the steady flow section (1B), after the airflow quality is improved in the porous air duct (18) of the steady flow section (1B), the airflow flows into the experimental section (1C) and is finally discharged into the atmosphere. The micro wind tunnel mechanism (1) has small volume and low cost, and is suitable for ground experimental simulation of low-speed atmospheric sail small satellites.

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