大型飞机设计中的气动弹性关键技术分析

Analysis on the Key Technology of Aerodynamic Elasticity in the Design of Large Aircraft

气动弹性作为大型飞机的弹性变形因素,对飞机飞行过程中的结构存在较大影响。空气动力作用下飞机会产生相应弹性形变,这之后弹性形变又会影响周围的空气动力,飞机周围空气动力又会继续影响飞机的弹性形变。针对这种大型飞机飞行中的气动弹性,本文主要从飞机设计方面,进行飞机翼面刚度、结构动力学、跨声速振颤、气动伺服等技术研究,以保证大型飞机在稳定飞行的同时,减少飞机的气动弹性干扰与安全隐患。

As the elastic deformation factor of the large aircraft, the aerodynamic elasticity has a great influence on the structure of the aircraft during flight. Under the action of aerodynamics, the aircraft will have corresponding elastic deformation. After that, the elastic deformation will affect the aerodynamics around the aircraft, and the aerodynamics around the aircraft will continue to affect the elastic deformation of the aircraft. Aiming at the aerodynamic elasticity in the flight of such large aircraft, this paper mainly carries out the research on aircraft wing stiffness, structure dynamics, transonic vibration and pneumatic servo technology from the aspect of aircraft design, so as to reduce aerodynamic and elastic disturbance and potential safety hazards of large aircraft while ensuring stable flight.