一种面向模块化可重构机翼的分步补偿优化方法

A step-compensation optimization method for modular reconfigurable airfoil

针对模块化可重构机翼结构的优化设计问题,以沿展向分布的3个翼段模块为研究对象,研究了不同翼展方案机翼的载荷相关性,通过在优化迭代过程中自动调整设计空间,解决了模块化可重构机翼优化设计时复杂的变量-约束耦合影响问题,建立了适用于模块化可重构机翼结构的分步补偿优化方法。以某无人机模块化可重构机翼结构优化设计问题为例,建立了优化模型,并分别采用所提分步补偿优化方法和传统单方案优化方法进行了优化设计。结果表明:所提方法能够稳定收敛,与单方案优化结果相比较,所提方法以较小的重量代价满足了3种重构方案的所有设计要求,且优化结果具有较好的工程实用性。

For optimization of the modular reconfigurable airfoil structures,three wing modules that distributed along the span direction are taken as research object,and the correlations of load among airfoils with different wingspan are investigated. The complex coupling effects between variables and constraints are resolved by adjusting the design space during iteration automatically. A step-compensation optimization method is proposed for design of the modular reconfigurable airfoil structure. Optimization model of airfoil structures from a modular UAV is established and optimization design is conducted using both the step-compensation method and the traditional single scheme optimization method. The results show that using the proposed method can achieve steady convergence,and compared with the results from single scheme optimization method,the final design in this paper can meet all the design requirements of those three reconfiguration schemes with limited cost of weight,and keep better practicability in engineering.