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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2020, Vol. 41 ›› Issue (5): 623404-623404.doi: 10.7527/S1000-6893.2019.23404

• Specical Topic of Numerical Optimization and Design of Aircraft Aerodynamic Shape • Previous Articles     Next Articles

Current situation and development trend of multidisciplinary coupled adjoint system for aircraft

HUANG Jiangtao1, LIU Gang1, GAO Zhenghong2, ZHOU Zhu1, CHEN Zuobin1, JIANG Xiong1   

  1. 1. Computational Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China;
    2. School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2019-08-26 Revised:2019-09-10 Online:2020-05-15 Published:2019-10-10
  • Supported by:
    National Natural Science Foundation of China (11402288); National Key R&D Program of China (2016YFB0200704)

Abstract: 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.

Key words: multidisciplinary coupled adjoint method, multidisciplinary optimization, coupled sensitivity, cross Jacobi, uncertainty analysis

CLC Number: