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为了解决激光推进自由飞行演示中飞行器垂直飞行的稳定性问题,设计了旋转发射平台装置。在飞行器起飞前,给其施加一定的转速。当转速达到700 r/m时,质量为4.2 g,焦距为10 mm的抛物面型飞行器在单脉冲输出能量为13 J,重复频率50 Hz的TEA CO2激光器的推进下,成功实现了重复频率脉冲激光推进竖直自由飞行演示。飞行高度达到2.6 m,飞行持续时间为1.75 s。结果表明,在激光输出能量一定的情况下,通过提高飞行器的转速,可以提高激光推进自由飞行演示中飞行器的稳定性,从而适当地提高飞行高度。
In order to solve the stability problem of vertical flight of the aircraft during the laser propulsion free flight demonstration, a rotating launching platform device was designed. Give the aircraft a certain speed before taking off. A parabolic-type aircraft with a mass of 4.2 g and a focal length of 10 mm at a rotational speed of 700 r / m was successfully pulsed with a TEA CO2 laser with a pulse output of 13 J and a repetition frequency of 50 Hz Promote vertical free flight demonstration. The flight altitude reached 2.6 m and the flight duration was 1.75 s. The results show that the stability of the aircraft in the laser propulsion free flight demonstration can be improved by raising the revolving speed of the aircraft under certain laser output energy, so that the flight altitude can be increased properly.