飞行器气动稳健优化设计方法研究进展

Research progress on aerodynamic robust design optimization methods for air vehicles

  • 摘要: 随着对现代飞行器性能需求的不断提高,面向工程应用的先进气动外形设计方法要求能兼顾多学科高性能和稳健性,以突破传统设计方法设计的外形稳健性差、难以实现工程应用的难题。针对这一问题,飞行器气动稳健优化设计方法脱颖而出并取得了快速发展,多种高效实用的不确定量化和稳健优化方法被相继提出,成为了满足工程型号气动外形设计要求最有力的手段之一。本文以建立工程实用的高效气动稳健优化设计方法为需求,综述了飞行器气动稳健优化设计相关理论和方法的最新研究进展。首先,系统介绍了飞行器气动稳健优化设计方法的研究现状和最新进展,对不确定建模、不确定量化和稳健优化等关键技术的发展现状进行了详细介绍和讨论;然后,结合当前最受关注的工程应用问题,陈述和讨论了气动稳健优化设计方法在跨声速翼型/机翼、自然层流外形、叶栅/旋翼外形3类典型复杂气动设计问题中的应用效果和进展,同时结合多学科分析与优化设计需要,调研了气动/隐身/声爆/结构多学科稳健优化设计在工程设计问题中的最新进展和发展方向;最后,结合文献综述,讨论了飞行器气动稳健优化设计理论和方法在发展和应用上面临的难题和挑战,并展望了未来研究方向。

     

    Abstract: The demand for advanced aerodynamic shape design methods that can balance the multidisciplinary high performance and robustness of air vehicles is ever-increasing. Traditional aerodynamic design methods often fall short of robustness, hindering their ability to achieve optimal performance and limiting their practical engineering applications. The robust aerodynamic design optimization (RADO) method for air vehicles, which seamlessly integrates the strengths of aerodynamic shape optimization techniques with robust design principles, has become one of the most viable approaches to satisfy the engineering requirements for aerodynamic configuration design with the advent of various efficient and practical uncertainty quantification (UQ) and robust optimization methods. This paper provides a comprehensive overview of the recent progress in RADO for air vehicles, addressing both theoretical and practical aspects of aerodynamic shape optimization and highlighting promising research directions for future exploration. This paper begins with a systematic review of state-of-the-art and research trends of RADO for air vehicles. Recent advancements in related key techniques, including uncertainty modeling, UQ, and robust optimization, are presented in detail. Concurrently, the application of RADO in three representative aerodynamic design problems—transonic airfoil/wing, natural laminar flow wing, and compressor blades/rotor blades—are reviewed and discussed thoroughly, focusing on the most pertinent engineering challenges. Next, the progress and development of aerodynamic/stealth/sonic boom/structural multidisciplinary robust optimization design (MRDO) in practical application are investigated. Finally, drawing from the comprehensive literature review, challenges and difficulties encountered in developing and applications of RADO for air vehicles are discussed.

     

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