一种三维弹性机翼气动优化新方法  

Optimal Aerodynamic Design for Aeroelastic Wing

作　　者：钟科林[1] 杨旭东[1] 熊俊涛[1] 

机构地区：[1]西北工业大学航空学院,陕西西安710072

出　　处：《航空计算技术》2009年第3期63-67,共5页Aeronautical Computing Technique

摘　　要：基于控制理论方法和有限元分析软件,通过将网格生成、流场计算、有限元分析、粘性伴随方程数值求解、梯度求解和拟牛顿优化算法等几方面的有效结合,研究与发展了计及静气动弹性影响的三维机翼气动优化设计方法,其中,雷诺平均Navier-Stokes方程为主控方程,气动载荷和结构静弹性变形量由气动/结构方程的耦合迭代求解得到,目标函数梯度信息由共轭方程数值求解得到。典型大展弦比机翼气动减阻设计结果表明:研究及发展的计及静气动弹性影响的三维机翼气动优化设计方法是有效的,能够有效考虑静气动弹性的影响。By integrating the adjoint method and finite- element structural analysis software to consider aero- elastic interaction effect, a new aerodynamic optimization design approach for the elastic wing is studied, which concludes the grid generation, structural analysis, flow field calculation, the viscous continuous adjoint equations numerical simulation, gradient solution, optimal algorithm etc. the aero- structural analysis has been carried out by coupling the flow control equations solver and finite- element structural software. The gradient information with respect to design variables is obtained by the adjoint method. The result shows that the present method for the optimization design of three dimensional elastic wing configurations is effective and feasible.

关 键 词：静气动弹性 控制理论 有限元分析软件 弹性机翼 NAVIER-STOKES方程 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]