摘要
对于无尾飞翼布局飞机,阻力方向舵是一种十分有效的航向操纵装置,在开裂状态下利用其产生的阻力形成的偏航力矩进行偏航控制。在这一过程中,阻力方向舵的气动分布具有较强的非线性特性,由此导致的舵面弹性变形会对其操纵效率产生较大影响。采用基于CFD/CSD的流固耦合方法,完成了非线性静气动弹性设计建模及仿真计算方法研究,开展了阻力方向舵弹性效率的计算分析,明确了阻力方向舵弹性效率随马赫数、速压,以及阻力舵开度的变化规律,同时研究了阻力舵开裂对全机气动特性及其他舵面弹性效率的影响。
For the tailless flying wing aircraft,the drag rudder is a very effective heading control device,the yaw moment is generated by the drag in the open state.In this process,the aerodynamic distribution of drag rudder shows strong nonlinear characteristics,the resulting elastic deformation of the rudder surface has a great impact on the control efficiency.In this paper,the fluid-solid coupling method based on CFD/CSD is used to research on nonlinear static aeroelastic modeling and simulation method,the elastic efficiency of drag rudder is calculated and analyzed,the variation of elastic efficiency of drag rudder with Mach number,velocity pressure and rudder surface opening is clarified.Meanwhile,the effects of drag rudder on aerodynamic characteristics and elastic efficiency of other rudders are studied.
作者
唐超
TANG Chao(Shenyang Aircraft Design&Research Institute,Shenyang 110035,China)
出处
《飞机设计》
2021年第6期10-18,共9页
Aircraft Design
