Flight test of multi-pulses vertical laser propulsion in air breathing mode

Ming Wen; Jie Wu; Guangyu Wang

doi:10.1117/12.2011248

16 May 2013 Flight test of multi-pulses vertical laser propulsion in air breathing mode

Ming Wen, Jie Wu, Guangyu Wang

Proceedings Volume 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012); 87960M (2013) https://doi.org/10.1117/12.2011248
Event: 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 2012, Xi'an, Shaanxi, China

Abstract

The air breathing vertical laser propulsion experiment refers to that in the air breathing mode the light craft under the irradiation of incident laser of vertical direction will turn pulse laser energy into the vertical propulsion thrust of the light craft and continue along the fixed rail upward propulsion flight. It is an important experiment to test the minimum single pulse energy, the optimization degree of light craft structure, and the characteristics of turning the laser energy into the thrust. The experiment is to be conducted dozens of meters in height away the ground generally. The article gives a detailed explanation of the whole process of the air breathing vertical propulsion test, including vertical propulsion light craft design, the connections design, the connections performance test, the frictional resistance detection and the whole process of movement performance test. A vertical propulsion tower was used to conduct the single pulse experiment and multi-pulse performance was predicted with a multiple-pulse thrust measuring system. The impulse coupling coefficient was estimated from fight height. Finally, through the experiments of air breathing vertical laser propulsion, the relation of the movement time and flight height was obtained. In the curve, the mean acceleration of the light craft can arrive to 6m/s² in the first 20 pulses and the propulsion height can reach 3.5m in 1.12s. After 0.65s, the acceleration of the light craft decreased significantly. The results of the article lay the good foundation for the laser propulsion launch system verification.

Citation Download Citation

Ming Wen, Jie Wu, and Guangyu Wang "Flight test of multi-pulses vertical laser propulsion in air breathing mode", Proc. SPIE 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 87960M (16 May 2013); https://doi.org/10.1117/12.2011248

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KEYWORDS

Laser propulsion

Pulsed laser operation

Resistance

Laser energy

Laser systems engineering

Mirrors

Motion measurement

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