低成本可消耗无人机极限不可用燃油量确定方法研究  

Research on Determination Method of Limit Unavailable Fuel Amount of Low-cost Expendable UAV

作　　者：范田昊 张士卫[1] 薛小伟[1] 朱贺明 Fan Tianhao;Zhang Shiwei;Xue Xiaowei;Zhu Heming(China Airborne Missile Academy,Luoyang 471000,China)

机构地区：[1]中国空空导弹研究院,河南洛阳471000

出　　处：《航空科学技术》2024年第9期29-34,共6页Aeronautical Science & Technology

摘　　要：对于低成本可消耗无人机,为了发挥其燃油的最大效能,需要在预定的飞行作战轨迹下测算出其极限的不可用燃油量。本文针对某型低成本可消耗无人机提出了一种极限不可用燃油量的确定方法。通过切割油面角建立该无人机特定姿态下的不可用燃油数据库,在此数据库的基础上拟合出该无人机所有姿态下不可用燃油量与俯仰角、滚转角之间的数学关系;将该无人机根据六自由度数学模型仿真出的随时间变化的理论剩余油量与相应时刻下对应姿态的不可用燃油量进行比较,确定特定飞行任务下该无人机的极限不可用燃油量。通过这种方法计算得到的极限不可用燃油量和该无人机实际飞行剩余油量误差仅有0.27L,误差小于传统民航飞机不可用油量计算方法的3.68L,误差减小了3.41L,燃油利用率提高了3.9%,表明此方法的准确性与可行性。For a low-cost expendable UAV,in order to maximize its fuel efficiency,it is necessary to measure the limit of its unusable fuel under a predetermined flight combat trajectory.In this paper,a method for determining the limit unavailable fuel quantity is proposed for a certain type of low-cost expendable UAV.The database of the UAV's unavailable fuel in a specific attitude is established by cutting the angle of the fuel surface,and the mathematical relationship between the unavailable fuel and the pitch and roll angles of the UAV in all the attitudes is fitted on the basis of the database;the theoretical residual fuel over time simulated by the UAV according to the six-degree-offreedom mathematical model is compared with the unavailable fuel of the corresponding attitudes at the corresponding moments,and the ultimate unavailable fuel of the UAV under a specific flight mission is determined.Compare the theoretical residual fuel quantity of the UAV simulated according to the six-degree-of-freedom mathematical model with the corresponding attitude at the corresponding moment,and determine the limit unavailable fuel quantity of the UAV under a specific flight mission.The error between the limit unavailable fuel quantity calculated by this method and the actual remaining fuel quantity of the UAV is only 0.27L,which is smaller than the 3.68L in the traditional method of calculating the unavailable fuel quantity of civil aviation aircraft,and the error has been reduced by 3.41L and the fuel utilization has been improved by 3.9%,which demonstrates the accuracy and feasibility of this method.

关 键 词：低成本可消耗 无人机 燃油系统 不可用燃油量 多项式拟合 

分 类 号：TJ760[兵器科学与技术—武器系统与运用工程] V228.1[航空宇航科学与技术—飞行器设计]