飞机结构与气动力及飞控系统耦合分析技术

结合工程实践对飞机的气动伺服弹性稳定性检查的设计思想、理论及试验方法进行了探讨。内容包括理论背景、频率响应分析、伺服颤振分析、状态方程法以及地面耦合试验、风洞稳定性试验和飞行试验验证介绍等。在此基础上用某型飞机作为实例验证了气动伺服弹性的工程设计方法,进一步证实了本文所描述的分析和试验技术的有效性和实用性。最后提出了未来气动伺服弹性研究应开展的工作。

Coupling Analysis of Aircraft Structure with Aerodynamics and Flight Control System

The stability investigation of the aircraft aero-servo-elasticity(ASE) is one of the important work in the modern aircraft development.Combined with the engineering practice,this paper describes its designing idea,theoretical and experimental methods.It includes the theoretical background,the frequency response analysis,the servo-flutter analysis,the state equation method,the ground coupling test,the wind tunnel stability,and the flight certification tests.In order to verify the engineering design method an example shows that the present studies are effective and applicable.Finally,a further research for aircraft aero-servo-elasticity is suggested.