Comments on: Some Boom Rendezvous Videos http://selenianboondocks.com/2009/12/some-boom-rendezvous-videos/ Random Musings from the Warped Minds of Jonathan Goff, Ken Murphy, John Hare, and Kirk Sorensen Sat, 05 May 2012 20:53:30 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Selenian Boondocks » Blog Archive » The Business of Altius Space Machines http://selenianboondocks.com/2009/12/some-boom-rendezvous-videos/comment-page-1/#comment-9333 Selenian Boondocks » Blog Archive » The Business of Altius Space Machines Fri, 17 Sep 2010 09:16:07 +0000 http://selenianboondocks.com/?p=1300#comment-9333 [...] Sorensen, one of my cobloggers here on Selenian Boondocks, invented the Boom Rendezvous concept, which I see as an important part of the solution to this problem. Boom [...] [...] Sorensen, one of my cobloggers here on Selenian Boondocks, invented the Boom Rendezvous concept, which I see as an important part of the solution to this problem. Boom [...]

]]> By: jeff m. http://selenianboondocks.com/2009/12/some-boom-rendezvous-videos/comment-page-1/#comment-6502 jeff m. Fri, 04 Dec 2009 05:04:40 +0000 http://selenianboondocks.com/?p=1300#comment-6502 This is a very interesting technology and technique, but one question that came to mind while I was reading and seeing the video: Does this work based on the assumption that the axis of the docking apparatus lines up with the CG of the vehicle on both mating vehicles? How well would it work if these conditions weren't met? Anyways, just a thought. This is a very interesting technology and technique, but one question that came to mind while I was reading and seeing the video: Does this work based on the assumption that the axis of the docking apparatus lines up with the CG of the vehicle on both mating vehicles? How well would it work if these conditions weren’t met? Anyways, just a thought.

]]> By: Pete http://selenianboondocks.com/2009/12/some-boom-rendezvous-videos/comment-page-1/#comment-6465 Pete Thu, 03 Dec 2009 14:10:32 +0000 http://selenianboondocks.com/?p=1300#comment-6465 These booms look very cool, and may be off the shelf, but I am not sure that they would be that light, nor that they could take much in the way of bending loads - their slenderness ratio seems very high. If mass is not a serious constraint, then a truss robotic arm would presumably be lighter, and perhaps more robust. If launch packing is an issue, similar roll up trusses are used for mobile towers, locking together as they unroll. There is another interesting boom system, perhaps a solution in search of a problem, where one can use a tensile spinning belt with belt feed constraining pulleys at each end (pulleys might eventually be magnetic). The belt material gets fired out by one pulley, hits the other and gets turned back 180 degrees and fired back. The interesting thing about such booms is that the compressive strength is independent of length. They might also be used to accelerate and decelerate payloads to higher speeds. This may be an interesting system for much further down the track - one could fire out a "harpoon" in a controlled manner. These booms look very cool, and may be off the shelf, but I am not sure that they would be that light, nor that they could take much in the way of bending loads – their slenderness ratio seems very high. If mass is not a serious constraint, then a truss robotic arm would presumably be lighter, and perhaps more robust. If launch packing is an issue, similar roll up trusses are used for mobile towers, locking together as they unroll.

There is another interesting boom system, perhaps a solution in search of a problem, where one can use a tensile spinning belt with belt feed constraining pulleys at each end (pulleys might eventually be magnetic). The belt material gets fired out by one pulley, hits the other and gets turned back 180 degrees and fired back. The interesting thing about such booms is that the compressive strength is independent of length. They might also be used to accelerate and decelerate payloads to higher speeds. This may be an interesting system for much further down the track – one could fire out a “harpoon” in a controlled manner.

]]> By: Martijn Meijering http://selenianboondocks.com/2009/12/some-boom-rendezvous-videos/comment-page-1/#comment-6460 Martijn Meijering Thu, 03 Dec 2009 12:48:15 +0000 http://selenianboondocks.com/?p=1300#comment-6460 <i>If you have time, the other videos on his youtube channel are pretty interesting as well</i> Seconded, very impressive. If you have time, the other videos on his youtube channel are pretty interesting as well

Seconded, very impressive.

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