民航客机最佳机翼面积的优化方法  

Civil Transport Aircraft Wing Area Optimization

作　　者：孙滢[1] 吴桂林[2] 

机构地区：[1]中国商飞上海飞机设计研究院ARJ21项目管理部,上海200232 [2]中国商飞上海飞机设计研究院总体气动部,上海200232

出　　处：《航空计算技术》2012年第3期14-17,共4页Aeronautical Computing Technique

基　　金：国家自然科学基金项目资助(10872093)

摘　　要：分析了民航客机燃油效率的影响因素,将气动阻力进行分解,推导出了以巡航效率为优化目标的最佳机翼优化方法。算例表明,无论是在飞机的方案设计阶段,还是在详细设计阶段,方法都是适用的。方法不仅可用于最佳机翼面积的优化工作,在详细设计阶段,还可用于检验飞机的气动优化设计是否偏离飞机的优化目标,以及检验飞机的最佳巡航航程指标是否与最佳燃油效率匹配。The factors influencing airliner fuel efficiency are analyzed;the aerodynamic drag is decomposed as well in this paper. The wing area optimization method is developed based on dealing with cruise efficiency as the optimization objective. The numerical experiments illustrate that this method is valid both in aircraft conceptual design stage and also in detailed design stage. The method can be not only used to optimize the optimum wing area in detailed design stage but also used to verify the deviation of aerodynamic design from its target, as well as to verify the match of aircraft cruise flight indicators with the best fuel efficiency.

关 键 词：燃油效率 巡航效率 巡航阻力分解 最佳机翼面积 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]