Method for determining optimal efficiency of water-based propulsion system based on multi-target optimization

Abstract

The invention discloses a method for determining the optimal efficiency of a water-based propulsion system based on multi-target optimization. The method comprises the following steps: setting independent variable parameters related to the scale of the water-based propulsion system; distributing volumes of a hydrogen cylinder and an oxygen cylinder according to an electrolysis principle; obtainingthe mass and maneuvering interval time of a propellant (water) required to be carried by the water-based propulsion system under the same load weight and speed increment as those of a traditional chemical propulsion system according to the parameters of the water-based propulsion system; solving an optimal solution set of the gas cylinder volume and the electrolytic tank power of the water-basedpropulsion system by taking the system weight and the maneuvering interval time saved by the water-based propulsion system as targets and utilizing a multi-target optimization method; and selecting proper parameters from the optimal solution set according to task requirements, and calculating the performance which can be provided under the scale. The optimal efficiency design of the water-based propulsion system is realized through the multi-objective optimization method, and the problem of mutual restriction between the efficiency and resources of the water-based propulsion system is solved.

Description

technical field [0001] The invention relates to the technology of a spacecraft chemical propulsion system, in particular to a method for determining the optimal performance of a water-based propulsion system based on multi-objective optimization, which is suitable for the design of the water-based propulsion system. Background technique [0002] The water-based propulsion system electrolyzes deionized water into hydrogen and oxygen gas through the proton exchange membrane electrolysis cell, which is supplied to the engine to generate thrust. The system has the advantages of environmental protection, high comprehensive specific impulse, and easy pre-packaging. [0003] At present, if the water-based propulsion system is to be applied to the satellite platform, the scheme design of the orbit service platform based on the water-based propulsion technology must be carried out at the level of engineering application. However, there are mutual constraints between water-based prop...

AI Technical Summary

Problems solved by technology

However, there are mutual constraints between water-based propulsion system configurations and specific space mission requirements:

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