增稳锥套与软管二级摆建模与仿真  

Modelling and simulation of the double pendulum of the actively stabilized drogue and hose

作　　者：石超[1] 薛建平[1] 董新民[1] 王健[1] 陈勇[1] 

机构地区：[1]空军工程大学航空航天工程学院,陕西西安710038

出　　处：《飞行力学》2015年第3期209-212,217,共5页Flight Dynamics

基　　金：国家自然科学基金资助(61304120;61473307)

摘　　要：为给增稳锥套的概念设计提供一种仿真验证平台,提出了一种简化的软管与增稳锥套二级摆模型,建立了其运动模型,并进行了仿真研究。首先,使用三维建模软件UG设计了一种加装"十字形"舵面的增稳锥套,通过CFD方法计算得到此锥套在不同迎角下的气动系数,并采用一元线性回归方法对气动系数进行拟合。然后,给出了二级摆模型,建立了其运动学与动力学方程,进一步搭建了其MATLAB/Simunlink仿真模型。最后,利用前面拟合所得的气动系数进行了仿真,获得了稳定气流中增稳锥套的静力平衡位置,为增稳锥套的进一步主动增稳控制方法研究奠定了仿真验证平台基础。To provide a simulation and verification platform for the conceptual design of the actively stabihzed drogue, a simple pendulum model consisting of the pendulum level representing the hose and the ac- tively stabilized drogue was put forward, and the kinematic model was built. Firstly, an actively stabilized drogue equipped with the cross type control surfaces was designed using the 3D modeling software UG. By the computational fluid dynamic （CFD） method, aerodynamic parameters of the drogue with different angles were computed and were fitted by means of linear regression method. Then, a double pendulum was given, and the kinematic and dynamic model was built in order to build the MATLAB/Simulink model. Finally, a simulation was performed using aerodynamic parameters fitted by means of linear regression method; the static equilibrium position of the actively stabilized drogue in the steady flow was achieved, providing the basis for the simulation and verification platform for the study of the actively sta- bility augmentation control methods of the drogue.

关 键 词：增稳锥套 二级摆模型 CFD方法 一元线性回归 静力平衡位置 

分 类 号：V249.4[航空宇航科学与技术—飞行器设计]