RibbonDynamics: Difference between revisions
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[[Image: | [[Image:Dynamics_HandB_Final_pdf.pdf]]: Large compilation of David Lang's Space Elevator dynamics work. (10.2Meg PDF) - This document will be split and referenced. | ||
SELECTED ATMOSPHERIC WIND RESPONSE ANIMATIONS '''(Deflection distances are generally magnified & time is accelerated)''' | |||
ATMOSPHERIC WIND RESPONSE | |||
'''Note, these winds are very high, and are not typical of the space elevator geographical location''' | '''Note, these winds are very high, and are not typical of the space elevator geographical location''' | ||
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WAVE PROPAGATION VIEWED AT RIBBON HIGH ABOVE EARTH '''(Deflection distances are generally magnified & time is accelerated)''' | SELECTED WAVE PROPAGATION ANIMATIONS VIEWED AT RIBBON HIGH ABOVE EARTH '''(Deflection distances are generally magnified & time is accelerated)''' | ||
Note: this wave originates at the ground in response to a planned base-movement | Note: this wave originates at the ground in response to a planned base-movement | ||
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(you can contact Paul in the Seattle area at "psnow10@comcast.net", phone: 425 466-1405) | (you can contact Paul in the Seattle area at "psnow10@comcast.net", phone: 425 466-1405) | ||
SPACE ELEVATOR PAPERS and ILLUSTRATIVE ANIMATIONS PERTAINING THERETO | |||
[[image:Paper_Lang_Aero.pdf ]]: Paper on Aerodynamic Response to Atmospheric Wind (PDF) | |||
[[image:Paper_Lang_Climber_Transit.pdf ]]: Paper on Dynamic Response to Climber Transits (PDF) | |||
[[image:Paper_Lang_GEO_Deploy.pdf ]]: Paper on the Dynamics of GEO-Based Construction Deployment (PDF) | |||
'''For those interested in working with GTOSS please contact Brad Edwards at brad_edwards@yahoo.com. The GTOSS program is being added to this site and will be made available to individuals with the background knowledge to use it. The code is extremely complex as are the input parameters and interpretation of the output results.''' | '''For those interested in working with GTOSS please contact Brad Edwards at brad_edwards@yahoo.com. The GTOSS program is being added to this site and will be made available to individuals with the background knowledge to use it. The code is extremely complex as are the input parameters and interpretation of the output results.''' | ||
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Revision as of 06:55, 12 December 2008
GTOSS
(Make sure you have mercurial and relevant fortran compilers, etc. installed)
Then type:
hg clone http://hg.sharesource.org/gtoss
Inside the "SE Dynamics Exploration Runs" directory there are 35 runs doing all kinds of space elevator analysis.
GTOSS Documentation
Getting started documentation is here: File:Getting Started with GTOSS.pdf
Full Docs are located here: http://keithcu.com/GTOSS%20Reference%20Docs.zip
Ribbon Dynamics
The space elevator is a challenging dynamics problem. It reaches through a gravity well, has a very unique aspect ratio, is in an environment with wind, passing gravity wells, solar wind pressure, ascending climbers and a moving anchor. An extensive study was undertaken by David Lang to simulate the system from deployment through operation. The results of those studies are below.
| GTOSS
Also see http://home.comcast.net/~GTOSS/GTOSS_and_Space_Elev.html
SELECTED ATMOSPHERIC WIND RESPONSE ANIMATIONS (Deflection distances are generally magnified & time is accelerated) Note, these winds are very high, and are not typical of the space elevator geographical location File:Lang Movie Low.avi: AVI movie: Stop-time animation with Low altitude view and atmospheric density depiction File:Lang Movie Full.avi: AVI movie: Stop-time animation of entire elevator length (with horizontal response scale greatly magnified)
SELECTED WAVE PROPAGATION ANIMATIONS VIEWED AT RIBBON HIGH ABOVE EARTH (Deflection distances are generally magnified & time is accelerated) Note: this wave originates at the ground in response to a planned base-movement : QUICKTIME movie, Horizontal scale is greatly magnified Note: the above QT movie was made using the application SpaceAnimator, created by Paul Snow (you can contact Paul in the Seattle area at "psnow10@comcast.net", phone: 425 466-1405)
SPACE ELEVATOR PAPERS and ILLUSTRATIVE ANIMATIONS PERTAINING THERETO File:Paper Lang Aero.pdf: Paper on Aerodynamic Response to Atmospheric Wind (PDF) File:Paper Lang Climber Transit.pdf: Paper on Dynamic Response to Climber Transits (PDF) File:Paper Lang GEO Deploy.pdf: Paper on the Dynamics of GEO-Based Construction Deployment (PDF)
For those interested in working with GTOSS please contact Brad Edwards at brad_edwards@yahoo.com. The GTOSS program is being added to this site and will be made available to individuals with the background knowledge to use it. The code is extremely complex as are the input parameters and interpretation of the output results. |
