Protection of flying vehicles against blast loads

Silnikov, М.V.; Mikhaylin, A.I.

doi:10.1016/j.actaastro.2013.12.012

Cited by 47 publications

(8 citation statements)

References 8 publications

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“…It has been demonstrated that inert particles significantly weaken the shock waves up to their suppression, which can be used to enhance the explosion safety of spacecraft(see, for example, discussion of blast mitigation onboard flying vehicles in [34,35]). In contrast, high-energy particles of metals (aluminium, magnesium) or mixtures of reactive gases with additions of these particles can be used as working media in rocket engines using hybrid and heterogeneous detonation.…”

Section: Discussionmentioning

confidence: 99%

Interaction of a shock wave with an array of particles and effect of particles on the shock wave weakening

et al. 2017

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Two-phase systems that involve gas-particle or gas-droplet flows are widely used in aerospace and power engineering. The problems of weakening and suppression of detonation during saturation of a gas or liquid flow with the array of solid particles are considered. The tasks, associated with the formation of particles arrays, dust lifting behind a travelling shock wave, ignition of particles in high-speed and high-temperature gas flows are adjoined to safety of space flight. The mathematical models of shock wave interaction with the array of solid particles are discussed, and numerical methods are briefly described. The numerical simulations of interaction between sub-and supersonic flows and an array of particles being in motionless state at the initial time are performed. Calculations are carried out taking into account the influence that the particles cause on the flow of carrier gas. The results obtained show that inert particles significantly weaken the shock waves up to their suppression, which can be used to enhance the explosion safety of spacecrafts.

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Section: Discussionmentioning

confidence: 99%

Interaction of a shock wave with an array of particles and effect of particles on the shock wave weakening

et al. 2017

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“…During space flights, the spacecraft instrumentation is exposed to the extremely negative impacts of radiation [1], but even more dangerous threats are directed to the cosmonaut crew, especially during long-term flights and in the case of future landings on the nearest celestial bodies, such as the Moon, Mars and asteroids. Because plans for manned flights to Mars are now often discussed in the scientific literature, the present paper considers important aspects of human safety during those expeditions.…”

Section: Introductionmentioning

confidence: 99%

The role of a space patrol of solar X-ray radiation in the provisioning of the safety of orbital and interplanetary manned space flights

Avakyan

Kovalenok²,

Savinykh

et al. 2015

Acta Astronautica

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“…1a) and one additional parameter of the incident shock (for example, its strength 1 J or its amplitude 1 p  ). Here the strength 1 J of the incident shock is the static pressure ratio across it, and the amplitude 1 p  is the difference between pressures while crossing the shock (the shock overpressure which is especially important in problems of blast reflection [1,2] and corresponding structural survivability [3][4][5] problem corresponds to variation in the wedge angle  in the problem of unsteady (quasisteady) reflection of propagating shock of the same strength. Thus, the non-monotonic dependence of the mechanical loads behind reflected unsteady shock from an inclined surface appears from the non-monotonic pressure variation downstream the point of steady reflection.…”

Section: Introductionmentioning

confidence: 99%

Optimal regular reflection of shock and blast waves

Чернышов

Tyapko

2018

MATEC Web Conf.

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The regular reflection of an oblique steady shock in supersonic gas flow is considered. The static pressure extremum conditions after the point of reflection of the shock with fixed strength depending on oncoming flow Mach number are determined analytically. The obtained results are applied to solution of the mechanically equivalent problem of the reflection of a propagating shock from an inclined surface. Non-monotonic variation of the mechanical loads on the obstacle with respect to its inclination angle is shown; the obstacle slope angles that correspond to pressure minima downwards of the unsteady shock reflection point are determined analytically.

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Protection of flying vehicles against blast loads

Cited by 47 publications

References 8 publications

Interaction of a shock wave with an array of particles and effect of particles on the shock wave weakening

Interaction of a shock wave with an array of particles and effect of particles on the shock wave weakening

The role of a space patrol of solar X-ray radiation in the provisioning of the safety of orbital and interplanetary manned space flights

Optimal regular reflection of shock and blast waves

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