Satellite overall parameter modeling and optimizing method based on SysML

Abstract

The invention discloses a satellite overall parameter modeling and optimizing method based on SysML. The satellite overall parameter modeling and optimizing method is achieved through the following steps: (1) performing system modeling on a complex product from the four dimensions of requirement, function, structure and parameter based on the SysML; (2) establishing a three-level index system of an overall performance index (MoE), a performance index (MoP) and a technical performance index (TPM), and realizing mapping from user demands to system implementation end performance parameters; and (3) defining a design variable, constraining and optimizing an objective function and establishing an analysis model of each subject based on a parameter diagram of the SysML model library, and completing a parameter optimization task in the conceptual design stage of the remote sensing satellite by adopting a collaborative optimization method based on a SysML model and a genetic algorithm. According to the method, the project period can be shortened, and a reference basis is provided for optimization design of other complex projects.

Description

technical field [0001] The invention relates to the technical field of computer modeling and simulation, in particular to a method for modeling and optimizing satellite general parameters based on SysML. Background technique [0002] The earth observation satellite is a large complex system product, and the design process involves multiple disciplines such as orbit, power supply, measurement and control, and payload. The traditional system design process is centered on documents, based on overall goals and constraints, to determine the final solution. During the design process, the heads of various disciplines communicated and negotiated with each other, generating a large amount of information and continuously revised data. Ordinary documents or other irrelevant storage methods have become a major obstacle in the system design process, and the process of proofreading, modification, and evaluation takes up a lot of time in the product design cycle. In addition, it is diffi...

AI Technical Summary

Problems solved by technology

Ordinary documents or other irrelevant storage methods have become a major obstacle in the system design process, and the process of proofreading, modification, evaluation, etc. takes up a lot of time in the product design cycle

In addition, it is difficult for the designer to make a choice in the face of various proposals proposed by various designers.

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