先进战斗机气动弹性设计综述

中国新一代战斗机的研发引领了飞机设计领域各项技术的创新和发展。针对研制总要求和任务特殊性，中国航空工业成都飞机设计研究所气动弹性专业建立了精益气动弹性设计与验证技术体系。基于多学科优化设计流程，开展了旨在提高飞机气动弹性品质的关键技术攻关、气弹优化设计和分析工作。完成了考虑含全动翼面结构非线性的全机动力学特性地面试验、亚跨超声速颤振模型风洞试验和气动弹性飞行试验验证。在较短的研发周期内，成功实现气动弹性设计目标，为新一代战斗机的成功研制提供了技术保障。描述了该飞机气动弹性设计历程、主要技术工作以及在此基础上取得的技术进步、能力提升以及具有研究所特色的气动弹性设计知识工程建设。

Review of aeroelasticity design for advanced fighter

The birth of Chinese new-generation fighter leads all the technical innovation and development in aircraft designing field. Lean aero-elasticity design and verification technology system were established in AVIC Chengdu Aircraft Design and Research Institute according to the project development requirements and task particularity. Critical technology research and optimization design and analysis aiming at enhancing aircraft aero-elastic quality were carried out based on multi-disciplinary design optimization process. Whole aircraft dynamic characteristics ground test with consideration of all-movable surface structural nonlinearity, subsonic/transonic/supersonic flutter model wind tunnel tests that cover all Mach numbers and flight aero-elasticity test verification were completed and passed. Aero-elasticity design objective was achieved within a short development period, providing technical support for successful development of new-generation fighter. This paper describes the design process, major technical work of the aircraft, as well as the gained technical progress, capability enhancement, and knowledge engineering construction of aeroelastic design with research institute characteristics.