Structural Optimization of a Morphing Shock Control Bump
Structural Optimization of a Morphing Shock Control Bump
复制标题
变形冲击控制凸块的结构优化
DOI：
10.2514/6.2011-2129
复制
发表时间：
2011
影响因子：
2.8
通讯作者：
M. Santer
中科院分区：
文献类型：
--
作者：
O. Rhodes;M. Santer
本文研究了一种变形激波控制凸块的设计，它能减小跨音速翼型上的波阻损失。执行结构优化以找到最佳驱动方法，以实现所需的变形，同时将结构置于最小应变状态。施加垂直力的离散致动点形成用于优化的决策变量。两个目标函数的开发，以量化的质量变形在三个维度。最大限度地减少他们两个单独的结果，并作为一个组合的目标。最后，采用可变的边界条件，这使得一个可比的变形，以实现更少的驱动点。
This paper investigates the design of a morphing Shock Control Bump, capable of reducing the penalties of wave drag on transonic airfoils. A structural optimization is executed to flnd the optimum actuation method to achieve the required morph, whilst placing the structure in a minimum state of strain. Discrete actuation points at which vertical forces are applied form the decision variables for optimization. Two objective functions are developed to quantify the quality of a morph in three dimensions. Results of minimizing them both individually, and as a combined objective are presented. Finally a variable boundary condition is employed, which enables a comparable morph to be achieved with fewer actuation points.