Pulse and pneumatic assistance combination-based low-orbit orbit plane transfer method

Abstract

The invention discloses a pulse and pneumatic assistance combination-based low-orbit orbit plane transfer method, relates to a large-range orbit plane transfer method for an earth low-orbit spacecraft, and belongs to the field of aerospace. The method comprises the steps of firstly establishing the number of orbits and a dynamic equation of a flight process in atmosphere; changing an orbit of the spacecraft to a highly elliptic orbit in a maneuvering manner by applying a pulse, and enabling the spacecraft to enter the atmosphere by applying an de-orbit pulse at an apogee; selecting an optimization target as a maximum change amount of an orbit plane, giving constraints and obtaining an optimal control rate and a terminal state variable meeting aerodynamic requirements, thereby finishing pneumatic assisted orbit plane transfer; and enabling the spacecraft to fly out of the atmosphere and run to a target orbit height along a transfer orbit, and enabling the spacecraft to enter a target orbit by applying an orbit determination pulse. According to the method, the orbit plane transfer of the low-orbit spacecraft can be finished with relatively low fuel consumption; and the method is good in robustness, high in repeatability, small in influence of spacecraft orbit orientation, high in flexibility of a pneumatic assistance process, and wide in application range for the target orbit.

Description

technical field [0001] The invention relates to a method for changing a low-orbit orbital surface by combining aerodynamic force and pulse, in particular to a method suitable for a large-scale orbital surface transfer of an earth low-orbit spacecraft, and belongs to the field of aerospace technology. Background technique [0002] The orbital plane maneuvering of low-orbit spacecraft in space is a common type of maneuvering process in space missions. Due to the high fuel consumption of the maneuvering process, the maneuverability of spacecraft in space is greatly limited. Therefore, the study of low-orbit orbital plane transfer is of great importance The spacecraft space maneuver mission is of great significance. Compared with traditional impulse maneuvers, orbital maneuvering with aerodynamic deceleration assistance can save a lot of fuel. Therefore, aerodynamic-assisted orbital maneuvering is considered to be an orbital maneuvering strategy with huge potential benefits. Ho...

AI Technical Summary

Problems solved by technology

Due to the effect of aerodynamic force, this method consumes less fuel in the process of orbit transfer, but the biggest defect of this method is that it is only applicable to the case where the target orbit is high orbit, and it is not applicable to low orbit spacecraft

Images