激光垂直推进飞行试验设计方法
Design method of flight experiment of laser vertical propulsion
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摘要: 在激光单脉冲能量特性分析基础上，通过光船运动过程中的受力分析，提出了最小单脉冲能量、最小平均推力和最小冲量的设计方法，提出了光船垂直推进的运动方程以及光船速度和位移的计算方法，计算了空气阻力、摩擦阻力、光船质量等主要因素对飞行速度、平均推力等的影响。定量研究结果表明:空气阻力的影响可以忽略不计；摩擦阻力越大，飞行速度越小；光船质量越大，完成飞行任务所需的最小单脉冲能量越大。Abstract: Based on the characteristic analysis of the laser single-pulse energy, force analysis of the lightcraft is done. For the minimum single-pulse energy, the minimum mean thrust, and the minimum impulse, the design methods are proposed. The equation of motion of the lightcraft is deduced during the vertical movement, and the velocity and displacement are calculated. The effects of air drag, friction drag and lightcraft mass on flight velocity and the mean thrust are discussed. The quantitative results indicate that flight velocity is independent of air drag; when the friction drag becomes larger, the flight velocity becomes smaller; the minimum single pulse energy needed for flight mission would increase as the lightcraft mass increases.
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Key words:
- laser propulsion /
- lightcraft /
- the minimum single-pulse energy /
- the mean thrust /
- flight velocity
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