Design optimization method of wave-transparent, invisible and heatproof radome

Abstract

The invention relates to a design optimization method of a wave-transparent, invisible and heatproof radome, and belongs to the field of radome design. In order to convert a multi-objective optimization problem into a single-objective optimization problem which is easier to solve under the condition that an objective weight factor is not introduced, and enable the electrical performance and the stealth performance of the radome to be optimal synchronously, the method comprises the steps of: establishing a mapping relationship between a radome design variable and a state parameter; determiningthe specific expression form of the radome design variable; determining an objective function and constraint conditions in the radome multidisciplinary design optimization problem; representing the stealth performance by using the electrical performance index, and reducing the dimension of the target function; constructing a radome multidisciplinary optimization module and an analysis module, obtaining sensitivity information, constructing a linear approximation function, and completing multidisciplinary design optimization by adopting a single-stage optimization algorithm. Therefore, the difficulty of optimization design is reduced, the performance of the radome is synchronous and optimal, and the design optimization period is shortened.

Description

technical field [0001] The invention belongs to the field of radome design, and in particular relates to a design optimization method of a wave-transparent, stealthy and heat-resistant radome. Background technique [0002] The force and thermal environment of the seeker radome of a supersonic cruise missile is very harsh during flight, while the working environment temperature of the terminal guidance system and electronic equipment on the missile generally does not exceed 80°C. Therefore, as an important thermal protection component and structural load-bearing component, the primary function of the radome is to be able to withstand the high-temperature and high-pressure environment faced by high-speed flight, and to achieve effective protection of the terminal guidance system and electronic equipment on the missile through heat-resistant design; Secondly, in order to achieve the purpose of precise guidance, it is required that the radome can realize the electrical performan...

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Problems solved by technology

However, this method needs to pre-determine the target weight. Whenever the weight changes, the algorithm needs to be re-run, resulting in the final result being greatly affected by it.

And the weight values ​​are mostly unpredictable and will change as the environment changes

[0006] In addition, in the patent "A Method for Multidisciplinary Design Optimization of Wearable Electronic Device System", it is proposed to use the Pareto dominance relationship to obtain a set of non-dominated solution sets, and on this basis to make the next decision according to the actual situation. But this Pareto solution often improves the objective function while weakening at least one other objective function

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