Dibbs: Difference between revisions
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Ablative Propulsion for Contingency Reentry | Ablative Propulsion for Contingency Reentry | ||
<issues project = "Abraham Becker" search="false" filter="false" /> | <issues project = "Abraham Becker" search="false" filter="false" /> | ||
I propose the investigation of a failsafe emergency system for SE that would protect crew, climbers and potentially ribbon in the event of a LEO ribbon severing. This would be achieved through the use of a ribbon deployable reflector mechanism and collections of ground basedlasers to support the hardware in the event of catastrophic sever. Given the relatively narrow range (400km - 3000km altitude) of a likely LEO sever, a limited number of deployable reflectors could effect a SE ribbon backup system. | |||
The reflectors could either make use of (1) laser ablative material or | |||
(2) laser photonic pressure to achieve the lift to ensure the safety of the | |||
crew and hardware. The key issue would be the development of a long lasting | |||
lightweight laser ablative with sufficient thrust capability to achieve the | |||
objective. Alternatively, the photon pressure could be employed when the | |||
price-performance of megawatt lasers drops below a tipping point to enable the | |||
economic feasibility of such an undertaking. | |||
Optimally, the lower ribbon could be suspended for a long enough duration to be re-attached with the upper ribbon portion, which could be held down by the | |||
application of a similar system only inverted to deploy beams down from GEO to a | |||
reflector above the sever point. The power of the beams could be adjusted to | |||
enable an intercept and eventual fusion of the two ribbon segments. Given the ribbonmass requirements, nanotech robots would most likely be used to effect | |||
the fusion of CNT composite materials. | |||
This investigation would be advisable in light of the extreme cost of the | |||
SE assets and the likelihood of an eventual ribbon severing in LEO. Even if the normal operation of SE poses little threat of sever, unexpected solar events like a coronal mass ejection intersection with earth's magnetosphere could make a sever much more likely due to the attendant variations of trajectories of LEO objects. The additional costs of such a system would only be more lasers of the kind to be developed in any event for the power beaming app. The benefit would obviously be the protection of life and expensive hardware even in the event of catastrophic failure. | |||
ANB 07/22/08 | |||
== Andreas Hein == | == Andreas Hein == |
Revision as of 05:33, 25 July 2008
Title: Dibbs | ||
[Cover Img] |
About:
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Tags:
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Abstract
This is a collaborative page used for figuring out who's doing what.
Editors: it's easiest to use the section-edit links to get straight to the list you want to modify
Because of a bug in the issue tracker: it is best to add or edit issues on your user page, and only SHOW your issues on this page.
Brad Edwards
brad_edwards@yahoo.com
<issues project = "Edwards" filter = "false" search = "false" />
Kinda Done | In Progress | Intend to do |
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Ben Shelef
Kinda Done | In Progress | Intend to do |
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Andrew Price
email: aprice2704@gmail.com
http://www.healthspace.com HealthSpace Integrated Solutions Ltd.
http://www.skyder.com Skyder Research Ltd.
Wants a space elevator that can lift 400,000 teu (20ft containers) of cargo per year
<issues project = "Aprice" filter = "false" search = "false" />
Kinda Done | In Progress | Intend to do |
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Ed Gray
Economics ed_gray@sbcglobal.net
<issues project = "Ed Gray" search="false" filter="false" />
Kinda Done | In Progress | Intend to do |
Greg Rebholz
Legal Pillar (wiki) gregrebholz@gmail.com <issues project = "Greg Rebholz" search="false" filter="false" />
Kinda Done | In Progress | Intend to do |
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Amie Ellison
Japanese Translation <issues project = "Amie Ellison" search="false" filter="false" />
Abraham Becker
Ablative Propulsion for Contingency Reentry <issues project = "Abraham Becker" search="false" filter="false" />
I propose the investigation of a failsafe emergency system for SE that would protect crew, climbers and potentially ribbon in the event of a LEO ribbon severing. This would be achieved through the use of a ribbon deployable reflector mechanism and collections of ground basedlasers to support the hardware in the event of catastrophic sever. Given the relatively narrow range (400km - 3000km altitude) of a likely LEO sever, a limited number of deployable reflectors could effect a SE ribbon backup system. The reflectors could either make use of (1) laser ablative material or
(2) laser photonic pressure to achieve the lift to ensure the safety of the crew and hardware. The key issue would be the development of a long lasting lightweight laser ablative with sufficient thrust capability to achieve the objective. Alternatively, the photon pressure could be employed when the price-performance of megawatt lasers drops below a tipping point to enable the economic feasibility of such an undertaking.
Optimally, the lower ribbon could be suspended for a long enough duration to be re-attached with the upper ribbon portion, which could be held down by the
application of a similar system only inverted to deploy beams down from GEO to a reflector above the sever point. The power of the beams could be adjusted to enable an intercept and eventual fusion of the two ribbon segments. Given the ribbonmass requirements, nanotech robots would most likely be used to effect the fusion of CNT composite materials.
This investigation would be advisable in light of the extreme cost of the
SE assets and the likelihood of an eventual ribbon severing in LEO. Even if the normal operation of SE poses little threat of sever, unexpected solar events like a coronal mass ejection intersection with earth's magnetosphere could make a sever much more likely due to the attendant variations of trajectories of LEO objects. The additional costs of such a system would only be more lasers of the kind to be developed in any event for the power beaming app. The benefit would obviously be the protection of life and expensive hardware even in the event of catastrophic failure.
ANB 07/22/08
Andreas Hein
Ablative Propulsion for Contingency Reentry <issues project = "Andreas Hein" search="false" filter="false" />
Bryan Laubscher
Red Team Concept - Oscillations, Satellites and Debris <issues project = "Bryan Laubscher" search="false" filter="false" />
Jim Dempsey
Numerical simulation tools <issues project = "Jim Dempsey" search="false" filter="false" />
David Lang
<issues project = "David Lang" search="false" filter="false" />
Ted Semon
<issues project = "Ted Semon" search="false" filter="false" />
Blaise Gassend
<issues project = "Blaise Gassend" search="false" filter="false" />
Keith Curtis
Software & Simulation work
<issues project = "Simulation" search="false" filter="false" />
Wiki work
<issues project = "WikiTodo" search="false" filter="false" />
Christopher J Petrella
Spinoff Technologies