不同动力型式的巡飞弹总体参数对比分析

动力系统选型是影响巡飞弹战技指标中的航时、巡飞速度、航程以及任务载荷重量系数的关键因素之一。基于能量守恒推导出电动力螺旋桨、活塞式螺旋桨动力与喷气式动力3类动力型式的巡飞弹总体参数估算公式，利用敏度分析的思想逐个研究各动力型式性能参数对巡飞弹战技指标的影响程度与影响规律，并从能源供给的角度对比3类动力型式所用燃料的等效比能量特性，梳理出影响各动力型式差异的根源，为巡飞弹顶层设计阶段的动力系统与作战使用之间适配选型提供有效的指导原则。

Comparative analysis on primary parameters of loitering munitions of different propulsion systems

As to loitering munitions, the propulsion system significantly influences design missions of flight endurance, cruising velocity, range and the mass of payloads. Based on the constraint of energy balance, the estimation formulation of loitering munitions of three types of propulsion systems is established, including electric-motor type, piston type and jet type. Then the influences of performance parameters on design missions for different types of propulsion systems are analyzed comparatively and individually by the sensitivity analysis method. The characteristics of equivalentenergy density for each kind of fuel material of three propulsion system types are compared from the perspective of energy supply to conclude the original reasons for those three types. These conclusions could provide useful guidelines for selection of propulsion systems for different military operations in the phase of preliminary design of loitering munitions.