Microairplane propelled by laser driven exotic target

Yabe, Takashi; Phipps, Claude; Yamaguchi, Masashi; Nakagawa, R.; Aoki, Koichi; Mine, Hitoshi; Ogata, Yoichi; Baasandash, Choijil; Nakagawa, Masato; Fujiwara, Etsuo; Yoshida, Kazuhiro; Nishiguchi, A.; Kajiwara, Itsuro

doi:10.1063/1.1485313

Cited by 108 publications

(46 citation statements)

References 12 publications

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“…Obviously, the solution has to be liquid enough to be pumped easily through the nozzle. On the other hand, previous works have shown that the ablation of liquid targets yields very low specific impulse [10,11], for instance 19 s with carbon-ink-doped water [12]. This is essentially due to the splashing of the liquid, which drives out the laser energy into droplet formation instead of high-velocity plasma acceleration.…”

Section: Introductionmentioning

confidence: 93%

Laser ablation of energetic polymer solutions: effect of viscosity and fluence on the splashing behavior

et al. 2008

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Laser plasma thrusters are a new kind of propulsion system for small satellites, and work with the thrust created by the laser ablation of a target. Liquid polymer solutions are very promising fuels for such systems, provided that no splashing of the target occurs, because ejection of droplets strongly decreases the performances of the system. We have investigated the nanosecond infrared laser ablation of glycidyl azide polymer solutions containing carbon nanoparticles as absorber. Shadowgraphy imaging revealed two cases, namely splashing regime and solid-like behavior. The transition between both regimes depends on the viscosity of the solution and on the laser fluence, and is explained by the recoil force acting on the target. Appropriate conditions to avoid splashing were identified, showing that this liquid polymer solution is a suitable fuel for laser plasma thrusters.

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Section: Introductionmentioning

confidence: 93%

Laser ablation of energetic polymer solutions: effect of viscosity and fluence on the splashing behavior

et al. 2008

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“…When a plasma plume of mass Δm is released by velocity v, the gained momentum (impulse) is Δmv and this becomes the excitation force against a target structure. LA has been researched for vibration tests [40][41][42][43][44][45][46][47]49] , laser vapor deposition [50] , thrust [51] , laser micromachining [52] , laser peening [53] , detection of bolt loosening [42] , and acoustic tests [48] . It is a newly established as non-contact excitation technology [40][41][42][43][44][45][46][47][48][49] , but it is destructive as sub-millimeter damage is generated on the target structure.…”

Section: Introductionmentioning

confidence: 99%

Non-contact and non-destructive Lamb wave generation using laser-induced plasma shock wave

Hosoya

Yoshinaga

Kanda

et al. 2018

International Journal of Mechanical Sciences

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a b s t r a c tThis paper proposes a non-contact and non-destructive method to generate Lamb waves against a target structure using the impulse excitation force generated by laser-induced plasma (LIP). When a high power pulse laser is irradiated in air and its laser fluence exceeds 10 15 W/m 2 , a plasma is formed. While the plasma in air expands in high speed, shock waves on the spherical surface are generated and these shock waves become the impulse excitation force against a target structure, resulting in the non-contact and non-destructive approach. A 2024 aluminum alloy plate is used as the test piece in the experiment, and the dynamic characteristics of the Lamb waves generated from LIP shock waves are measured. Phase velocity and group velocity of generated Lamb waves were compared to the calculated values from Rayleigh-Lamb frequency equations and we found that maximum error was 5% and its frequency component included at least 400 kHz. Further, we investigated the relationship between the distance from the LIP shock wave-generating location to a test piece and the dynamic characteristics of the generated Lamb waves. This method can control the amplitude and the frequency components of generated Lamb waves by changing this distance.

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“…Laser propulsion [3][4][5][6] is significant in achieving a miniature and light micro-airplane. A laser-driven microairplane has been studied by Yabe and Kajiwara et al [7][8][9][10] A laser-driven micro-airplane requires precise laser tracking control to achieve continuous flight. Development of a high-speed micro-airplane also requires good laser tracking performance.…”

Section: Introductionmentioning

confidence: 99%

Tracking Control and System Development for Laser-Driven Micro-Vehicles

Kajiwara

Hoshino

Hara

et al. 2006

Trans. Japan Soc. Aero. S Sci.

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The purpose of this paper is to design a control system for an integrated laser propulsion/tracking system to achieve continuous motion and control of laser-driven micro-vehicles. Laser propulsion is significant in achieving miniature and light micro-vehicles. A laser-driven micro-airplane has been studied using a paper airplane and YAG laser, resulting in successful gliding of the airplane. High-performance laser tracking control is required to achieve continuous flight. This paper presents a control design strategy based on the generalized Kalman-Yakubovic-Popov lemma to achieve this requirement. Experiments have been carried out to evaluate the performance of the integrated laser propulsion/tracking system.

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Microairplane propelled by laser driven exotic target

Cited by 108 publications

References 12 publications

Laser ablation of energetic polymer solutions: effect of viscosity and fluence on the splashing behavior

Laser ablation of energetic polymer solutions: effect of viscosity and fluence on the splashing behavior

Non-contact and non-destructive Lamb wave generation using laser-induced plasma shock wave

Tracking Control and System Development for Laser-Driven Micro-Vehicles

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