CAJ | 학술논문

平流层飞艇总重最小化能一定程度上反映总费用最低的设计目标，满足有效载荷功率需求是飞艇总体设计的出发点和落脚点。在飞艇参数建模中引入太阳电池曲面铺装模型以及昼夜能源闭环模型；以整艇重量最小为设计目标，以昼夜能源供需平衡、浮重平衡、推阻平衡三大平衡问题为约束条件，运用粒子群优化算法对飞艇的外形尺寸参数进行优化设计；分析了有效载荷功率需求和功率密度对于飞艇总体设计结果的敏感性。分析结果表明：飞艇总重随有效载荷功率线性增加；飞艇总重随有效载荷功率密度增加而迅速减小，但变化率逐渐变小，飞艇总重趋于稳定。能源系统仿真的结果表明了飞艇总体设计方法的有效性和设计结果的临界特性。
평류층비정총중최소화능일정정도상반영총비용최저적설계목표，만족유효재하공솔수구시비정총체설계적출발점화락각점。재비정삼수건모중인입태양전지곡면포장모형이급주야능원폐배모형；이정정중량최소위설계목표，이주야능원공수평형、부중평형、추조평형삼대평형문제위약속조건，운용입자군우화산법대비정적외형척촌삼수진행우화설계；분석료유효재하공솔수구화공솔밀도대우비정총체설계결과적민감성。분석결과표명：비정총중수유효재하공솔선성증가；비정총중수유효재하공솔밀도증가이신속감소，단변화솔축점변소，비정총중추우은정。능원계통방진적결과표명료비정총체설계방법적유효성화설계결과적림계특성。
Minimizing the total weight of a stratospheric airship reflects the design object of lowest total cost to a certain extent.To meet the power requirement of payload is the springboard and goal for the conceptual design of the airship.The model of paving solar cells on curved surface and the model of energy-closed loop during day and night were introduced in the parametric modeling of the airship.The particle swarm optimization algorithm was used to optimize the parameters of the outside size.The design object is to find a feasible airship which has minimum total mass and satisfies the constraints with three balances:the diurnal balance between the energy supply and the energy requirement,the balance between mass and buoyancy,and the balance between drag and thrust.The sensitivity of the optimization results with different requirement of payload power and payload specific power was analyzed.The analysis results show that:the total airship weight increases linearly with the payload power;the total airship weight decreases steeply with the payload power density,but the change rate of the total weight also decreases and the total weight tends to be stable.The results of energy system simulation indicate the validity of the conceptual design method,as well as the critical characteristics of the design results.