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在现代民用飞机初步设计阶段,快速设计出高气动性能的增升装置是民用飞机设计瓶颈因素.本文通过增升装置气动外形参数化和微分进化优化算法搭建民机低速构型一体化设计和优化平台,并引入参数化变量重要性测度分析方法,计算对于设计目标升力系数的影响程度大的因子,分析出缝道宽度和后掠角参数化变量对升力系数的影响起主要作用.优化设计结果表明:优化构型升力系数增加,失速迎角增大,并且大大的提高了优化效率.
In the initial stage of modern civil aircraft design, rapid design of high aerodynamic performance of the lifting device is the bottleneck of civil aircraft design factors.This article through the lifting device aerodynamic shape parameterization and differential evolution optimization algorithm to build civil aircraft low-speed configuration integrated design and optimization Platform, and introduce the parametric variable importance measure analysis method to calculate the factors that affect the lift coefficient of the designed target greatly, and analyze the influence of the seam width and the sweep variable parameters on the lift coefficient.The results of the optimization design It shows that the lift coefficient of the optimized configuration increases, the angle of attack at attack increases, and greatly improves the optimization efficiency.