A multi-objective optimization-based method for determining optimal performance of water-based propulsion systems

A technology for propulsion system and method determination, applied in multi-objective optimization, aerospace vehicle propulsion system device, design optimization/simulation, etc., to achieve strong versatility, increase load-to-weight ratio, and simple and effective methods

Active Publication Date: 2021-08-10
BEIJING INST OF CONTROL ENG
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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  • A multi-objective optimization-based method for determining optimal performance of water-based propulsion systems
  • A multi-objective optimization-based method for determining optimal performance of water-based propulsion systems
  • A multi-objective optimization-based method for determining optimal performance of water-based propulsion systems

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Embodiment Construction

[0047] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0048] figure 1 It is a flow chart of a method for determining the optimal performance of a water-based propulsion system based on multi-objective optimization in an embodiment of the present invention. Refer to figure 1 A method for determining the optimal efficiency of a water-based propulsion system based on multi-objective optimization provided in this embodiment specifically includes the following steps:

[0049] (1) Set the independent variable parameters related to the scale of the water-based propulsion system: the total volume of the gas cylinder is V g , the electrolytic cell power is P s , from which the corresponding cylinder weight m can be obtained wg , cell weight m s ....

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Abstract

The invention discloses a method for determining the optimal efficiency of a water-based propulsion system based on multi-objective optimization. The method includes: setting the independent variable parameters related to the scale of the water-based propulsion system; according to the electrolysis principle, allocating the volume of the hydrogen cylinder and the oxygen cylinder; obtaining the water-based propulsion system parameters under the same load weight and speed increment as the traditional chemical propulsion system, the water The mass of the propellant (water) and the maneuvering interval that the water-based propulsion system needs to carry; taking the system weight saved by the water-based propulsion system and the maneuvering interval time as the goal, the gas cylinder volume of the water-based propulsion system is solved by using the multi-objective optimization method and the optimal solution set of the electrolytic cell power; select appropriate parameters from the optimal solution set according to the task requirements, and calculate the performance that can be provided at this scale. The invention realizes the optimal efficiency design of the water-based propulsion system through the multi-objective optimization method, and solves the problem of mutual restriction between the efficiency and the resources of the water-based propulsion system.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/40G06F30/20G06F111/06
CPCB64G1/402
Inventor 尹文娟林震王猛杰唐飞宋涛马云华焦焱李泽
Owner BEIJING INST OF CONTROL ENG
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