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Propulsion strengthening member

a technology of propulsion and strengthening parts, applied in the direction of cosmonautic components, cosmonautic parts, transportation and packaging, etc., can solve the problems of explosive increase of debris, damage to artificial satellites, and increased debris in outer spa

Pending Publication Date: 2022-03-17
SKY PERFECT JSAT CORPORATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a way to make a part that can strengthen the progress made by laser irradiation in outer space.

Problems solved by technology

In recent years, increasing debris (space debris) in outer space has become a problem.
There is a risk that debris may collide with an operational artificial satellite, and when debris of even approximately several centimeters collides with an artificial satellite, the artificial satellite suffers devastating damage.
Moreover, there is concern about the problem (the Kessler syndrome) of an explosive increase in debris due to increasing amounts of debris and collisions between the debris and artificial satellites.
Moving debris such as that described above by irradiating the debris with a high-strength laser either from the ground or from outer space has been proposed, but launching an artificial satellite carrying a high-strength laser into outer space is impractical.

Method used

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Examples

Experimental program
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Effect test

embodiment

[0031]A spacecraft according to this embodiment is an artificial satellite that controls the orbit or the attitude of a target in outer space by irradiating the target with a laser. By controlling the orbit or the attitude of the target, an unnecessary target, in some embodiments, is removed.

[0032]The target is an artificial object, including debris (space debris), existing in outer space, or an object (a meteorite or the like, in some embodiments) other than an artificial object. Debris includes artificial satellites that have become uncontrollable, artificial satellites that have completed their operations and are no longer required, and parts of artificial satellites that have been detached by a collision or the like. In this embodiment, an example in which the target is debris will be described.

[0033]Controlling the orbit or the attitude means changing the orbit or the attitude of a target (debris) existing in outer space. Changing the orbit means raising or lowering the altitud...

modified example 1

[0100]FIG. 13 shows a special pad 910 according to modified example 1 of the above embodiment. The special pad 910 differs from the special pad 900 described above in that a transparent member 911 is constituted by microspheres (nanoparticles). According to this configuration, the density of the laser 21 that passes through the transparent member 911 so as to reach the opaque member 902 increases, with the result that ablation can be generated at a lower laser output. Moreover, the microspheres constituting the transparent member 911 are discharged by the part of the opaque member 902 that is ejected by ablation, and as a result, a reaction force Δv thereto can be acquired. Note that similarly to the embodiment described above, the special pad910 is preferably laminated by stacking pluralities of the transparent member 911 and the opaque member 902 alternately. Further, there are no particular limitations on the number and size of the transparent member 911.

modified example 2

[0101]FIG. 14 shows a special pad 920 according to modified example 2 of the above embodiment. The special pad 920 differs from the special pad 900 described above in that the transparent member 911 is provided within an opaque member 922. According to this configuration, a reaction force corresponding to the emission angle of the laser 21 can be generated. Note that a plurality of the opaque members 922 including the transparent member 911 may be laminated.

[0102]FIGS. 15A to 15D are views showing examples of propulsion strengthening by the special pad 920 according to modified example 2 of this embodiment. Here, for convenience, an example in which one transparent member 911 is included within the opaque member 922 will be described. FIG. 15A shows an example of a case in which the surface of the special pad 920 is irradiated with the laser 21 from an oblique direction relative thereto. FIG. 15B shows the force (arrow 22) with which a part of the opaque member 922 is ejected by abl...

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PUM

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Abstract

A propulsion strengthening member attached to a surface of an object existing in outer space, the propulsion strengthening member includes: a transparent member that transmits an emitted laser; and an opaque member that is provided between the transparent member and the object and absorbs the laser such that at least a part thereof is evaporated by energy of the laser.

Description

TECHNICAL FIELD[0001]The present invention relates to a propulsion strengthening member.BACKGROUND ART[0002]In recent years, increasing debris (space debris) in outer space has become a problem. Debris is made up of, in some embodiments, artificial satellites that are no longer needed, artificial satellites that have failed, parts of artificial satellites that have been detached by a collision or the like. There is a risk that debris may collide with an operational artificial satellite, and when debris of even approximately several centimeters collides with an artificial satellite, the artificial satellite suffers devastating damage. Moreover, there is concern about the problem (the Kessler syndrome) of an explosive increase in debris due to increasing amounts of debris and collisions between the debris and artificial satellites. To prevent an increase in debris, debris has to be removed by incineration or moved to an orbit (a graveyard orbit) on which the debris does not collide wi...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B64G1/40
CPCB64G1/405B64G1/66B64G1/242B64G1/244B64G1/40B64G1/1081F41H13/005B32B2307/41B32B27/08B32B2250/42B32B2307/412
Inventor FUKUSHIMA, TADANORIYAMADA, JUNHIRATA, DAISUKEEBISUZAKI, TOSHIKAZUWADA, SATOSHI
Owner SKY PERFECT JSAT CORPORATION