Quote from: jongoff on 12/11/2010 02:31 amQuote from: simonbp on 12/11/2010 02:01 amNo, but it's enough to get from LLO to the surface. If you use a Star 24 (or so) to capture into a dirty orbit, you could then clean it up with the lander before descent.Well, if you had another stage to do part of the deceleration from lunar orbit (about half of it), then yeah this could work as is. dV from LLO to the lunar surface is on the order of ~1.8-2.0km/s. It should be pretty readily scalable though, so we could easily do a bigger tank if the situation merited it. I'm mostly using this to prove out the general manufacturing technique.But yeah, it could be part of a GLXP solution.Would this have the T/W to land at 1/6th G?
Quote from: simonbp on 12/11/2010 02:01 amNo, but it's enough to get from LLO to the surface. If you use a Star 24 (or so) to capture into a dirty orbit, you could then clean it up with the lander before descent.Well, if you had another stage to do part of the deceleration from lunar orbit (about half of it), then yeah this could work as is. dV from LLO to the lunar surface is on the order of ~1.8-2.0km/s. It should be pretty readily scalable though, so we could easily do a bigger tank if the situation merited it. I'm mostly using this to prove out the general manufacturing technique.But yeah, it could be part of a GLXP solution.
No, but it's enough to get from LLO to the surface. If you use a Star 24 (or so) to capture into a dirty orbit, you could then clean it up with the lander before descent.
On an unrelated note, I just wanted to remind people that I'll be on the Space Show on Monday from 2-3:30pm PST (we're on ST, right?). Their site is down right now due to a snafu with their hosting service, so in case they aren't back up by then, the show can be reached on http://www.live365.com/stations/dlivingston?site=proI'll be talking more about ASM and its recent contracts, including our recent SBIR award, and what the heck this may mean for our company (this is one of the most scary-cool opportunities I've ever found myself involved in).~Jon
Quote from: jongoff on 12/11/2010 07:59 pmOn an unrelated note, I just wanted to remind people that I'll be on the Space Show on Monday from 2-3:30pm PST (we're on ST, right?). Their site is down right now due to a snafu with their hosting service, so in case they aren't back up by then, the show can be reached on http://www.live365.com/stations/dlivingston?site=proI'll be talking more about ASM and its recent contracts, including our recent SBIR award, and what the heck this may mean for our company (this is one of the most scary-cool opportunities I've ever found myself involved in).~JonIs it immature attention seeking to bump your own thread to try and get people to listen to your radio show appearance?~Jon
Quote from: jongoff on 12/13/2010 08:20 pmQuote from: jongoff on 12/11/2010 07:59 pmOn an unrelated note, I just wanted to remind people that I'll be on the Space Show on Monday from 2-3:30pm PST (we're on ST, right?). Their site is down right now due to a snafu with their hosting service, so in case they aren't back up by then, the show can be reached on http://www.live365.com/stations/dlivingston?site=proI'll be talking more about ASM and its recent contracts, including our recent SBIR award, and what the heck this may mean for our company (this is one of the most scary-cool opportunities I've ever found myself involved in).~JonIs it immature attention seeking to bump your own thread to try and get people to listen to your radio show appearance?~JonI'm looking forward to listening!
The Electroadhesive "Sticky Boom", an innovative method for rendezvous and docking, is proposed for the Orbiting Sample Capture (OSC) portion of the Mars Sample Return (MSR) mission. This technology carries the advantages of greatly reducing the probability of accidental colisions, high inherent reliability from mechanical and guidance simplicity, lower propellant consumption, avoidance of plume impingement, high tolerance for relative spacecraft misalignment, very low mass and volume requirements, and reliable non-mechanical contact and proximity detection. The system consists of an electrically activated electroadhesive pad used for spacecraft capture, mounted flexibly on the end of a low volume/weight retractable boom. The research proposed in phase 1 aims to design a system optimized for MSR mission and demonstrate the reliable functionality of the system in simulated space environments raising the TRL from a 2 to a 3. This effort ends with a system design for a flight testbed for testing during Phase 2, thus further elevating the TRL to 5-6. Also covered are numerous other applications of the technology, which allows for docking with spacecraft not design for docking as well as capture of uncooperative targets and debris. Interest in application of this technology has been show by industry entities such as ULA.
On the Space Show jongoff's currently discussing the electroweak "sticky boom" project. For reference, here's the abstract for that:http://sbir.gsfc.nasa.gov/SBIR/abstracts/10/sbir/phase1/SBIR-10-1-S5.04-9001.html?solicitationId=SBIR_10_P1QuoteThe Electroadhesive "Sticky Boom", an innovative method for rendezvous and docking, is proposed for the Orbiting Sample Capture (OSC) portion of the Mars Sample Return (MSR) mission. This technology carries the advantages of greatly reducing the probability of accidental colisions, high inherent reliability from mechanical and guidance simplicity, lower propellant consumption, avoidance of plume impingement, high tolerance for relative spacecraft misalignment, very low mass and volume requirements, and reliable non-mechanical contact and proximity detection. The system consists of an electrically activated electroadhesive pad used for spacecraft capture, mounted flexibly on the end of a low volume/weight retractable boom. The research proposed in phase 1 aims to design a system optimized for MSR mission and demonstrate the reliable functionality of the system in simulated space environments raising the TRL from a 2 to a 3. This effort ends with a system design for a flight testbed for testing during Phase 2, thus further elevating the TRL to 5-6. Also covered are numerous other applications of the technology, which allows for docking with spacecraft not design for docking as well as capture of uncooperative targets and debris. Interest in application of this technology has been show by industry entities such as ULA.There's also a nice list of potential NASA and non-NASA applications at the link.
...oh, and not to nitpick, but it's electrostatic, not electroweak--if I know how to control the electroweak force this easy, I wouldn't be working on rockets. :-)
Quote from: jongoff on 12/13/2010 11:05 pm...oh, and not to nitpick, but it's electrostatic, not electroweak--if I know how to control the electroweak force this easy, I wouldn't be working on rockets. :-)Haha, oh man, I can't believe I typed that.
Thoughts? Comments? Flames?
Quote from: jongoff on 12/13/2010 11:07 pmThoughts? Comments? Flames?Really nice to hear you talk. It was interesting to hear your thoughts on hydrogen handling on-orbit and how a lot of things that make handling hydrogen difficult on the ground go away or become simpler on-orbit.
I was not able to listen to the end because of the time difference to europe. But it was a good show. You have a good voice for radio interviews. Also not many instances where you used filler words.
The sticky boom stuff sounds fascinating. I immediately thought of space debris. I guess you need some flat area to stick to a heavy object such as a tumbling satellite. You could try to use the solar cells or radiators...
Quote from: rklaehn on 12/14/2010 08:49 amI was not able to listen to the end because of the time difference to europe. But it was a good show. You have a good voice for radio interviews. Also not many instances where you used filler words.Thanks! I didn't know how I had done with filler words. I've been making a conscious effort, but there was too much going on for me to remember how I had done.FWIW, here's the archive of the show http://archived.thespaceshow.com/shows/1476-BWB-2010-12-13.mp3QuoteThe sticky boom stuff sounds fascinating. I immediately thought of space debris. I guess you need some flat area to stick to a heavy object such as a tumbling satellite. You could try to use the solar cells or radiators...Yeah, it's probably one of the coolest ideas I've ever been involved with. I'm working with SRI on getting a formal relationship set up and to file a joint patent to protect the IP. I've also found some other, really crazy applications that I want to at least get a provisional patent in place before I talk about them publicly.There's a huge amount of potential here, if I don't screw things up.~Jon
I was finally able to listen to the 2nd half of the show (I had to leave in the middle) - God job, Jon! Is there any more information about the 'sticky boom' concept you discussed - that you can point to? I realize that it may be proprietary, but any small nugget of information would be interesting to read, since this is the first I have heard of it.
I was finally able to listen to the 2nd half of the show (I had to leave in the middle) - Good job, Jon!
Is there any more information about the 'sticky boom' concept you discussed - that you can point to? I realize that it may be proprietary, but any small nugget of information would be interesting to read, since this is the first I have heard of it.