High-speed aircraft lifting surface aerodynamic heating structure multidisciplinary optimization design platform

Abstract

The invention relates to a high-speed aircraft lifting surface aerodynamic heating structure multidisciplinary optimization design platform belonging to the technical field of modern high-speed aircraft designs. In the invention, by aiming at the demands of lifting surface heat vibration analysis in an aerodynamic heating environment when a high-speed aircraft lifting surface is designed and considering the positive correlation among aerodynamic heating structures, an aerodynamic heating structure integrated analysis method including aerodynamic heating calculation, transient heat conduction analysis, structural heat model analysis and non-constant aerodynamic force and heat vibration analysis is researched, and the aerodynamic heating structure multidisciplinary optimization design taking the most dangerous heat vibration speed as the constraint and taking the lifting surface structural quality as a target function is researched to achieve the goal of the optimization design on the high-speed aircraft lifting surface. The invention breaks through the problem that the multidisciplinary design optimization is carried out without combining with the influence of three aspects of aerodynamic heating on the structure in the traditional high-speed aircraft design, provides a set of high-speed aircraft lifting surface aerodynamic heating structure optimization design methods and waysand has the advantages of simple scheme and high efficiency.

Description

technical field The invention relates to a multidisciplinary optimization design platform for the aerodynamic thermal structure of the lifting surface of a high-speed aircraft, belonging to the technical field of modern high-speed aircraft design. Background technique The term hypersonic was first proposed by the famous Chinese aerodynamicist Qian Xuesen in 1946. The so-called hypersonic aircraft generally refers to an aircraft whose flight Mach number is greater than 5, and which can achieve hypersonic flight in the atmosphere and across the atmosphere. Hypersonic aircraft is the relentless pursuit of mankind in the new century, and its application prospects are very broad. In terms of business, hypersonic transport passenger aircraft can realize early departure and late return for global travel within a few hours, and the trans-Pacific passenger traffic will increase significantly. In terms of military affairs, for the consideration of space resource development and nati...

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Problems solved by technology

The purpose of the present invention is to solve the problem that there is no multidisciplinary design and optimization considering the influence of aerodynamic heating on the structure in high-speed aircraft, and to propose a multidisciplinary optimization design platform for aerodynamic and thermal structures of the lifting surface of high-speed aircraft

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