基于数值虚拟飞行技术的飞行器动态特性分析
收稿日期: 2016-01-11
修回日期: 2016-04-06
网络出版日期: 2016-04-20
Analysis of flying vehicle's dynamic characteristics based on numerical virtual flight technology
Received date: 2016-01-11
Revised date: 2016-04-06
Online published: 2016-04-20
基于结合结构重叠网格、闭环PID控制器、舵偏控制律、刚体六自由度运动和非定常Navier-Stokes方程求解等模块的数值虚拟飞行技术，对“起源号”返回舱、基本带翼导弹外形的多自由度非定常运动、受控特性及控制参数的整定开展了模拟。分析了不同自由度（DOF）下飞行器的运动特性，飞行器受扰动后的稳定性及控制参数的整定。计算结果表明：利用数值虚拟飞行技术可有效地开展复杂流动下飞行物体非线性运动问题的研究，对研究飞行器在非线性流动下的动态特性、受控特性、流动机理研究以及控制律的设计检验具有较高的工程价值和应用前景。
黄宇 , 阎超 , 席柯 , 王文 . 基于数值虚拟飞行技术的飞行器动态特性分析[J]. 航空学报, 2016 , 37(8) : 2525 -2538 . DOI: 10.7527/S1000-6893.2016.0120
With the numerical virtual flight technology based on structured overlapping grid, closed PID controller, rudder control, rigid body motion and unsteady N-S equation solver, the unsteady motion characteristic, dynamic stability and adjustment of control parameter of Genesis capsule and basic finner projectile have been simulated. The motion characteristic with different degree of freedom (DOF) motion, the motion stability and the adjustment of control parameter with disturbance of those flying vehicles have been analyzed. The calculation results show that the study of flying vehicle's nonlinear motion under the condition of complex fluid flows can be effectively carried out by numerical virtual flight technology, which has practical value and application prospect in the area of simulation and prediction of flying vehicle's motion and controlling characteristic, fluid mechanics study and design of control rule under the condition of unsteady and nonlinear aerodynamics.
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