飞行器动态稳定性参数计算方法研究进展  

Research progress of numerical method of dynamic stability derivatives of aircraft

作　　者：刘绪[1] 刘伟[1] 柴振霞 杨小亮[1] 

机构地区：[1]国防科学技术大学航天科学与工程学院,长沙410073

出　　处：《航空学报》2016年第8期2348-2369,共22页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(11172325;11502292);国防科学技术大学预研项目(ZDYYJCYJ20140101)~~

摘　　要：动态稳定性参数(简称动导数)是飞行器控制系统设计、飞行器动不稳定发生边界分析及相应动态稳定性判据研究的关键气动参数。在对飞行稳定性问题进行概述的基础上,介绍飞行器动态稳定性参数数值模拟的国内外研究进展。并按照理论方法、工程近似方法及计算流体力学(CFD)模拟方法的动导数发展方向对近年来主要的动导数计算方法进行了综述,评价了各种动导数预测方法的优缺点,指出了动导数数值模拟在理论基础、非定常气动力建模、预测方法精度和效率等方面存在的问题。最后对动导数数值模拟的发展趋势进行了展望。Dynamic stability derivatives（for short,dynamic derivatives）are key aerodynamic parameters for designing the control system,investigating the dynamic instability boundary and studying the dynamic stability criteria of aircraft.After a brief summary of flight stability,the research progress made in the numerical simulation of aircraft dynamic stability parameters is described.The main dynamic derivative calculation methods applied over the past few years are reviewed with respect to the theoretical method,engineering approximation and computational fluid dynamics（CFD）simulation.The merits of these dynamic derivative prediction methods are identified,and problems with numerical simulation of dynamic derivatives in terms of theoretical basis,unsteady aerodynamic modeling,the precision and efficiency of the prediction methods are pointed out.A mature,reliable prediction of dynamic stability characteristic enables us to evaluate and select different air design plans so as to minimize the aircraft design cost and mitigate risk exposure.Finally,the development trend of numerical simulation of dynamic derivatives is prospected.

关 键 词：数值方法 计算流体力学 稳定性 时域分析 动导数 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]