考虑不确定性的太阳能无人机总体参数设计  

Overall parameter design of solar UAV considering uncertainty

作　　者：姚远[1] 戴雨可 徐一鸣 YAO Yuan;DAI Yuke;XU Yiming(AVIC Chengdu Aircraft Design and Research Institute,Chengdu 610091,China)

机构地区：[1]航空工业成都飞机设计研究所,成都610091

出　　处：《航空学报》2024年第17期110-125,共16页Acta Aeronautica et Astronautica Sinica

摘　　要：与常规飞行器相比,超高空太阳能无人机平台在设计上需要同时满足昼夜能量平衡、高升阻比、超低翼载荷、超轻质结构等特殊要求。因此其总体参数取值与结构、能源、动力等分系统参数及全机性能参数密切相关,各分系统参数及全机性能参数的变化将直接影响到总体参数设计结果。基于能量平衡约束和重量平衡约束建立了超高空太阳能无人机的总体参数模型。在此基础上,以展弦比和光伏布板率作为优化设计变量,以飞机起飞重量和机翼面积作为优化目标,通过引入关键参数的不确定性,在确定性总体参数优化模型的基础上提出了考虑不确定性影响的总体参数设计方法,克服了确定性总体参数设计方法的局限性,在提升总体参数性能的同时,确保了总体参数设计方案在参数摄动下的可行概率。Compared with the design of conventional aircraft,that of ultra-high-altitude solar UAV platforms needs to meet special requirements such as weak energy balance,high lift-drag ratio,ultra-low wing load,and ultra-lightweight structure.Therefore,the overall parameter value is closely related to the structure,energy,power and other subsystem parameters and performance parameters,and the change of each sub-system parameter and the performance parameter will directly affect the design result of the overall parameter.Based on the energy balance constraint and weight balance constraint,the overall parameter model of ultra-high altitude solar UAVs is established in this paper.Next,with the aspect ratio and photovoltaic panel rate as optimization design variables and the aircraft take-off weight and wing area as optimization objectives,an overall parameter design method considering the influence of uncertainty is proposed based on the deterministic overall parameter optimization model by introducing the uncertainty of key pa⁃rameters,overcoming the limitations of the deterministic overall parameter design method.In addition to improving the performance of the overall parameter,the feasible probability of the overall parameter under parameter perturbation is ensured.

关 键 词：超高空太阳能无人机 总体参数设计方法 不确定性 能量平衡 可行概率 

分 类 号：V221[航空宇航科学与技术—飞行器设计]