飞行器多学科耦合伴随体系的现状与发展趋势

The multidisciplinary coupled adjoint system has many advantages, such as independence of multidisciplinary coupled sensitivity analysis from the number of design variables of various disciplines, and is thus an interesting development direction. This paper discusses the advantages, current situation, difficulties and future development trend of the multidisciplinary coupled adjoint system, including the disciplines of aerodynamics, structure, electromagnetism, acoustics, and infrared, which are closely related to aircraft design. The core contents, key technologies and current development situation of the single discipline and the multidisciplinary adjoint system are analyzed. The key technologies such as boundary condition processing, Jacobi derivation of multiple disciplines, and storage processing and solution of large sparse matrix are discussed systematically. The research ideas and solutions for respective key technologies and basic problems are given, and the development trend of multidisciplinary coupled adjoint theory and application is provided. Through this systematic discussion, we hope to provide meaningful suggestions for researchers engaged in multidisciplinary adjoint optimization and application, promote the research on multidisciplinary coupled system sensitivity, and the development of Multidisciplinary Optimization (MDO) technology based on high fidelity analysis.