Tank-distributively arranged spacecraft-used propellant counterweight method

Abstract

The method provided by the invention is based on the designed counterweight system. According to the counterweight system, a controller serves as the center; a mass measurement table is adopted for measuring the mass and the mass center position of the spacecraft before filling of the propellant is carried out each time; a controller determines an object in need of filling according to the mass center position; the controller adopts torque balance calculation to obtain the mass of the filling object according to the filling object, the mass center position of the spacecraft and the measured mass center position of each tank; the controller controls the corresponding filler to fill the propellant to the corresponding tank via a tank interface according to the mass obtained after calculation and the filling object; and if the mass center position measured by the mass measurement table can not meet the design demands, the above process is repeated by the control table until the mass center position of the spacecraft meets the design demands.

Description

technical field [0001] The invention belongs to the field of aerospace detection and control, and in particular relates to a propellant counterweight method for spacecraft with distributed installation of storage tanks. Background technique [0002] After the spacecraft completes the assembly work, it is necessary to measure the mass and the position of the center of mass of the spacecraft. If the position of the center of mass of the spacecraft is not at the coordinate origin of the overall coordinate system, the process of counterweighting the spacecraft is required, that is, in the pre-designed A counterweight is installed on the counterweight installation position of the spacecraft. [0003] At present, the spacecraft are all counterweighted by copper counterweights, and this counterweight method increases the dry mass of the detector, that is, this part of the mass cannot be used in the mission of the spacecraft, and also increases the The consumption of propellant dur...

AI Technical Summary

Problems solved by technology

[0003] At present, the spacecraft are all counterweighted by copper counterweights, and this counterweight method increases the dry mass of the detector, that is, this part of the mass cannot be used in the mission of the spacecraft, and also increases the The consumption of propellant during orbit change ultimately affects the life of the probe, so this method is not a cost-effective method

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