重庆理工大学学报2024，Vol.38Issue(19)：184-192,9.DOI:10.3969/j.issn.1674-8425(z).2024.10.023
复合材料机翼多工况下的自适应优化设计
Adaptive optimal design of composite wing under multiple-operating conditions
摘要
Abstract
To obtain composite aircraft wings with excellent aerodynamic performance,structural strength and lightweight,this paper proposes a multi-objective and multi-operating condition optimization method considering aerodynamic and structural analysis.The wings are subjected to analyses for aerodynamics and structural strength separately.Geometric optimization variables include wing aspect ratio,taper ratio,and sweepback angle while the structural optimization variables consist of layer thicknesses(-45°,90°,45°,0°)as well as the sandwich thickness of the upper and lower wing skin.A collaborative optimization model is built with stress and displacement as constraints,and the maximum lift-to-drag ratio and minimum weight as objectives.To address the large amount of computation in multi-objective optimization design of composite wings,an algorithm named the adaptive constraint Kriging model multi-objective optimization algorithm is proposed based on multi-criteria and physical programming(AKBCP).It introduces physical programming method and multi-criteria infill point.A comparitive analysis of test examples shows the algorithm achieves a fairly good optimization effect.Moreover,it is applied to the wing multi-objective optimization.Compared to the initial wing design,the lift-to-drag ratio of the optimized wing is improved by 3.12％and the weight is reduced by 31％.Our research may provide some new insights for optimizing the design of composite wings.关键词
复合材料机翼/多工况优化/物理规划法/多准则Key words
composite wings/multi-operating condition optimization/physical programming method/multi-criteria分类
航空航天引用本文复制引用
鞠光,徐平,铁瑛,尹志豪..复合材料机翼多工况下的自适应优化设计[J].重庆理工大学学报,2024,38(19):184-192,9.基金项目
国家自然科学基金项目(52175153) （52175153）
