Research method for multidisciplinary design optimization of certain earth observation satellite

Abstract

A research method for multidisciplinary design optimization of a certain earth observation satellite includes the steps of 1, analyzing different disciplines which the earth observation satellite is related to, by a mathematical model layer L1, determining a design variable range, finally determining a mathematical model of the earth observation satellite, and transmitting the information of the mathematical model to an optimization model layer L2; 2, on the basis that the optimization model layer L2 already acquires the information of the mathematical model, determining an optimization target and a bound variable, establishing an optimization model, and transmitting the information of the optimization model to an algorithmic computation layer L3; 3, acquiring a group of computation results by an enveloped dual algorithm computation module of the algorithmic computation layer L3, and providing a result data layer L4 with the computation results; 4, analyzing the computation results in the result data layer L4; if the computation results meet a convergence criterion, transmitting the results to an application layer L5; if not, modifying a design variable, and repeating the steps from 1 to 4. Compared to the traditional satellite design, test, modification design and test process, the method has the advantage that efficiency is improved.

Description

technical field [0001] The invention provides a multidisciplinary optimization research method for a certain type of earth observation satellite, which is used to deal with multi-variable and multi-constraint satellite optimization problems, and finally obtains the optimal earth observation resolution of the earth observation satellite, which belongs to aerospace technology field. Background technique [0002] Human beings live in the four major spheres of the earth, the lithosphere, hydrosphere, and atmosphere. Human beings and the earth they live in are facing severe challenges, which require us to use satellite technology to detect them in a timely manner. Moreover, this earth observation is the need for national defense construction and national security, such as air dominance, sea dominance, sky dominance, and information dominance. Satellite platform design is a very complex project with the characteristics of multi-discipline, multi-level and severe coupling between...

AI Technical Summary

Problems solved by technology

[0003] The obvious characteristics of the MDO problem are that there are many variables and constraints, the scale of the problem is large, and most of the functions are nonlinear implicit functions.

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