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NASA's Astronaut Glove Design Competition
Posted by
Zonk
on Sun Jul 24, 2005 07:57 PM
from the build-a-better-glove-and-the-world-will-beat-a-path-to-your-door dept.
from the build-a-better-glove-and-the-world-will-beat-a-path-to-your-door dept.
FleaPlus writes "NASA's Centennial Challenges program has announced its latest prize contest, the Astronaut Glove Challenge. The competition, a collaboration between NASA and the non-profit Volanz Aerospace, will be held in late 2006 and will award $250K to the team which produces the best-performing glove within contest parameters. The basic idea was originally proposed last year on Rand Simberg's Transterrestrial Musings blog to improve on current gloves, which have difficulties with remaining flexible while maintaining constant internal pressure in the vacuum of space. Previously-announced competitions include prizes for superstrong tethers, beaming power, and extracting oxygen from lunar regolith. These prizes are intended to lay the groundwork for larger competitions to further NASA's Vision for Space Exploration, possibly including 'an eight-figure prize for the first privately developed robotic moon lander.'"
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Calling Michael Jackson... (Score:2, Funny)
Reverse Engineer one from the Aliens (Score:3, Funny)
It's a bigger conspiracy than you think! (Score:2)
The aliens have the competition rigged for them to win. It ends up just being a typical government pay-off.
I'm only saying this because I'm in Mexico, and with the way this apartment is run, I'm probably not trackable. /me puts on a tin foil hat just in case
Having just watched The Wizard (Score:2, Funny)
Re:Having just watched The Wizard (Score:2)
I love the power glove. It's so bad.
Do you think NASA will accept 80s-style designs for fingerless gloves?
Re:Having just watched The Wizard (Score:2)
I would image a robotic glove. (Score:3, Interesting)
One of the solutions to this is building a robotic glove that helps muscle movement using signals detected from nerves (previosly posted on slashdot for the whole body).
Re:I would image a robotic glove. (Score:2)
Or, you could slap a chainsaw on the end and go Bruce Campbell style at 300 miles up.
Re:I would image a robotic glove. (Score:3, Insightful)
Like the sibling post says, all you need is to extend the sleeve to cover the whole arm to keep it contained, then have a glove with sensors that can map all the finger joints and provide force feedback..
Commercialization becomes essential (Score:5, Informative)
Since Michael Griffin became NASA administrator a few months ago we have seen a gradual change in the agency's position on the role of commercial entities in carrying out the VSE. Griffin initially said he was open to it, but noted in early May that he did not want to get into a position where the agency had to rely on commercial contracts to carry out the vision: "I cannot put public money at risk depending on a commercial provider to be in my critical path." Last month, Griffin said he wanted to press ahead with commercial ISS resupply services--cargo initially, later extending to crews--to free up resources elsewhere.
Yesterday, though, NASA raised its commitment to commercialization even higher. Speaking at the Return to the Moon conference, NASA's Chris Shank made it very clear: "We've run the budget and we can't afford to do this with a traditional approach." A non-traditional approach, he explained, will put a far greater emphasis on commercialization, including ISS crew and cargo and perhaps other opportunities, such as purchasing launch services for the CEV. Later in the day, NASA's Brant Sponberg unveiled the agency's new Innovative Programs effort, which includes a mix of service procurements, other transaction authority, and prize competitions.
I also rather liked this bit on Clark Lindsey's RLV News [hobbyspace.com]:
Jim Muncy gave a brief but interesting summary yesterday of how he sees the situation with US space policy. He saw Shank's presentation as an indication that the long battle by the entrepreneurial space community to get commercial spaceflight companies welcomed as partners in space development has been won. However, winning a battle can actually mean tougher consequences than losing since now comes the challenge is to fulfill that partnership successfully.
Getting another "big idea" accepted is also making progress. Large scale space settlement must become the primary goal of the space program. No Antarctica-like outposts on the Moon but Las Vegas-es instead. Griffin, in fact, stated in testimony to Congress that human expansion into the solar system is his long term vision for space policy. However, this big idea is still foreign to many at NASA, in Congress, the press and the general public.
Re:Commercialization becomes essential (Score:2)
Low and behold (Score:4, Funny)
tripod? (Score:3, Insightful)
Gloves? (Score:3, Funny)
That way the hands could be a bit easier to move due to the lower pressure. The suit could also be just a touch baggy.
match NASA superpowers with comic book heroes (Score:2, Funny)
Power Glove
Beaming Power
Extracting oxygen from lunar regolith
Robotic Moon lander
*uninformative, interesting*
*entries must be postmarked by 7/23 to qualify for free ipod drawing*
Glove, what glove? (Score:5, Interesting)
A common misbelief is that it would either instantly freeze or explode.
Space is a complete vaccuum, just like the kind in thermos bottles, and it's a VERY good thermal insulant. If your arm is at 37C, and you stick it in the best insulant possible, it will remain at 37C.
Now, the pressure inside your arm is one atmosphere, and the pressure outside is zero, so gases would begin to want to exit your arm, liquids will slowly turn to gases, tissues would expand, yes, but NOT EXPLOSIVELY.
Have you seen 2001: A Space Odyssey? At one point an astronaut jumps from a repair pod to an airlock without an helmet and survives just fine, which is perfectly realistic. The greatest worry is actually all the radiation that outer space is bathed in.
So for the glove design, a basic glove would an impermable layer and on top of that a metallic layer to block the radiations. It would, however, get hot very quick, so a cooling system becomes necessary for extended work outside. But a basic glove can be paper thin, because vaccuum is more harmless than you might think.
Re:Glove, what glove? (Score:2)
Re:Glove, what glove? (Score:5, Informative)
(Of course, all figures quoted are approximate.)
By reducing the pressure, they reduce the stress on the craft, the effects of an explosive decompression, they don't need to carry nitrogen with them, etc.
The Apollo 1 astronauts were killed by this, sort of. During the test, the capsule was filled with 100% oxygen as is customary, but they left it at full pressure. So the partial pressure of oxygen was 5x normal, which was high enough to make velcro burn very quickly ...
In any event, since we'd assume that their bodies would have acclimated to the reduced pressure, the pressure inside your arm would also be 1/5 atmosphere before you stuck it out in space.
I don't know how the body would react to going from 0.2 atmospheres to 0 atmospheres, but it would certainly be a lot less dramatic than going from 1 to 0.
I imagine that the effect would be like getting a hickey (but all over your body), at least with a 0.5 or so atmosphere difference. With a 0.2 atmosphere difference, the effect may be even smaller. I recall once giving a hickey and getting blood out, which really surprised me. But yet I didn't actually break the skin. I don't know how much of a vacuum I could create, but it wouldn't surprise me if blood and other fluids could start seeping out of somebody all over their body suddenly dropped from 1 to 0 atmospheres. Not explosive, but it could become life threatening very quickly if it happened body-wide. (Or maybe your body's pressure would quickly adjust and the blood/fluids loss would be small.)
Actually, I'd expect the greatest dangers to be 1) lack of oxygen, and 2) if you didn't let all of the air out of your lungs first, they'd expand and could very well be damaged by the difference in pressure. Radiation is indeed a danger, but unless it's extremely severe, it won't kill you in minutes, like lack of oxygen can.Parent
Re:Glove, what glove? (Score:3, Informative)
An unanswered question is what low levels of HALON would do. These quench the free-radical combustion mechanism at relatively low levels. But are now banned as suspected Ozone depletors.
Re:Glove, what glove? (Score:2)
I'm trying to remember the movie that demonstrated this effect... something about an area about to become depressurized, and one of the main characters (woman) is giving instructions to her daughter, to close her eyes very tightly and exhale.
The worst depiction of this was, oddly enough, in a Star Trek (TNG) episode. Geordi and Crusher were in a docking bay and had to depressurize
Re:Glove, what glove? (Score:2)
what you'd be giving up is the mostly unused nitrogen, which makes up about 78% of the atmosphere down here on Earth
http://www.uigi.com/nitrogen.html [uigi.com]
Re:Glove, what glove? (Score:2)
I suggest you look up "Apollo 1" as to why that is.
Space Shuttle, as an example, is 20% oxygen, 80% nitrogen, much like earth.
Re:Glove, what glove? (Score:4, Informative)
Now, the thing with the vacuum. Ever give someone a hickey, or been given a hickey? If you're planning to be out in that vacuum for more than a minute or two, I'ld suggest some kind of pressure suit. It doesn't have to be at one atmosphere, probably 2/3 or 1/2 atmosphere pressure would be ok. The trick is to design a glove so that the fingers don't want to pop straight because of the pressure inside. You want to be able to move your fingers with not too much difficulty. So basically you want a glove that fits snugly around the fingers, and such that when a finger is bent, the glove does not change much in volume.
Parent
Re:Glove, what glove? (Score:2, Funny)
Re:Glove, what glove? (Score:4, Informative)
In another forum, a long, long time ago, I recall someone talking about an experiment at a university on the effect of vacuum on exposed skin. I believe they were doing some research on low-pressure space suits.
They built a small vacuum chamber with an arm-sized hole surrounded by a pressure cuff. Someone put their arm through the hole, the cuff was expanded to seal around their arm and the chamber was pumped down to a reasonable vacuum.
The result was basically nothing. No pain, no significant swelling, nothing.
IIRC, they stopped after about 15 minutes because nothing was happening.
The conclusion was that undamaged skin makes a decent air-tight, water-tight, ummm, skin.
Seems like a pretty simple experiment if anyone was interested in replicating it.
Parent
Re:Glove, what glove? (Score:2)
Now, the pressure inside your arm is one atmosphere, and the pressure outside is zero, so gases would begin to want to exit your arm, liquids will slowly turn to gases, tissues would expand, yes, but NOT EXPLOSIVELY.
Isn't this the exact situation that divers face with decompression sickness? Okay, so your arm wouldn't explode, but getting the bends isn't much fun either. Wouldn't the nitrogen in your bloodstream start bubbling?
Skinsuit (Score:2)
I see this as particularly suitable for small diameter closures like gloves -- not much force to hold in. Gloves generating 5 psia hoop stress would only need 5-10 lb force per running inch. Not like keeping a blasted helmet on that might take 500 lb! Or waist closure that is even more (they must have
Re:Glove, what glove? (Score:3, Informative)
Heat is also gained and lost through radiation - so any skin exposed to the sun will rapidly be burned (because of the unfiltered UV) while getting heating. Any skin in shadow will lose heat by radiation.
In addition, the moisture in the upper layers of skin will be boiling away - carrying away more heat.
Re:Glove, what glove? (Score:3, Informative)
To comment on this again, what would happen to his had is probably going to be similar to what happened to Joseph Kittinger [wikipedia.org]'s hand when the pressure seal on his glove failed at 102,000 feet. He lost the use of his hand after a short period of near vacuum, and it hurt, but it did recover once he made it back down on the ground.
More on the story here [rb-29.net], and google will find you more if you search
They really... (Score:5, Funny)
Why Bother? (Score:2, Funny)
So, why not just use the same leather work gloves we use on Earth? Or, is this just another way for NASA
If air is the problem... (Score:2, Interesting)
$250k? (Score:5, Insightful)
Hey, if the patent system wasn't meant to be used in that way, it wouldn't have been designed to allow it, right?
I don't know about you guys (Score:4, Funny)
-:)
glove smovve (Score:4, Insightful)
Having something as fragile as the human hand, inside something as complicated as what is being proposed, isn't a solution.
Re:glove smovve (Score:2)
Re:glove smovve (Score:4, Insightful)
But there isn't.
Parent
How about a replacement for the shuttle... (Score:2, Insightful)
NASA's strategy for development (Score:4, Insightful)
Regolith (Score:2, Funny)
-Peter
why glove (Score:5, Interesting)
1. Mittens (less work I think per finger, more room for heating/cooling lines, less fabric and surface area). Also, enough surface area to be able to bind magnetically to tools maybe, and everyone knows mittens are warmer.
2. Robotic waldo claws, titanium and plastic hand simulacra and radical tentacles (as another poster also recommended waldos). Keeping the hand inside the end of the arm with a metal/rubber waldo attached to the outside (making your arms a bit longer basically) would have some definite advantages. First, you don't have to worry about puncturing your glove, you can get more strength into the waldo than your muscles provide, no pressure to work against, could be controlled by someone else, you could have more than two waldos coming out of your suit (either you multitask between them or you get someone to operate others), they could be shaped like tentacles or wrenches or whatever is best for space work, you can use materials best for space work without having to worry about bendability, temperature, or radiation protection, and you can use very thin or tiny waldo elements scaled down from your hand for tiny places, with mechanical aids adding precision (i.e. lock to an axis, etc.). Finally, consider that while you could just imagine having a single metal hand stuck at the end of a lengthened arm, looking like a deep sea diver's suit, it is also possible to imagine a plasticine hand virtually identical to that of man, but made with titanium bones and superplastic muscles. Considering that evolution and our brains have gotten this far with the current design, it may be best to simply use the same design but beef it up for outer space. If well integrated with the astronaut with advanced haptics technology, it could become like a "ghost hand" and very intuitive to use with fine control. Lastly, about those tentacles. Well yes, space anime does make good use of tentacles, and Doctor Octopus likes them, but I'm thinking that outer space might indeed be like the deep sea in that a large number of highly deformable tentacles could be extremely useful, if the mental barriers to efficient control can be overcome. Certainly it could be possible to mimic a hand with a bundle of fine tentacles, but I am mainly thinking about being able to grip and hold in place multiple large objects, hold oneself down so you don't float away when you try to screw something down, etc. If you could imagine yourself to be more of a fanciful creature from the undersea world than a landlubber biped, you might be able to imagine some improvements. Personally I like the idea of a utility tentacle that will grab onto secured parts to steady you when you are about to float away, and perhaps a couple additional ones that you can use to orient one or two parts in relation to your body while you are working on them.
3. muscle magnification. As someone said was posted earlier which I didn't know. If you have motors in your gloves they could detect where your are trying to move it and then supply more strength. Apparently the original post mentioned nerve signal sensing though I don't know if that's necessary. Also, use of memory metal and other active materials might be useful, and maybe a glove that makes it easier to (ratchet) close than open might be possible.
A combination of the above ideas might be useful, for example if you have a mitten and pull out the area between thumb and fingers to make it a convex box (maybe narrowing wrist to maintain pressure), you can then freely move your fingers and wrist to control a waldo. The movement of the hand could in fact be sensed by laser scanners built into the glove interior, possibly augmented if needed for precision work by having the astronaut first put on a silk glove with barcode-like patterns all over it and a non-slip interior coating. For manhandling big heavy things, coping with tiny things, or makin
I guess these guys have this already won? (Score:5, Informative)
Spacesuit glove manufacturing enhancements through the use of advanced technologies
Authors:
Cadogan, David; Bradley, David; Kosmo, Joseph
Abstract
The sucess of astronauts performing extravehicular activity (EVA) on orbit is highly dependent upon the performance of their spacesuit gloves.A study has recently been conducted to advance the development and manufacture of spacesuit gloves. The process replaces the manual techniques of spacesuit glove manufacture by utilizing emerging technologies such as laser scanning, Computer Aided Design (CAD), computer generated two-dimensional patterns from three-dimensionl surfaces, rapid prototyping technology, and laser cutting of materials, to manufacture the new gloves. Results of the program indicate that the baseline process will not increase the cost of the gloves as compared to the existing styles, and in production, may reduce the cost of the gloves. perhaps the most important outcome of the Laserscan process is that greater accuracy and design control can be realized. Greater accuracy was achieved in the baseline anthropometric measurement and CAD data measurement which subsequently improved the design feature. This effectively enhances glove performance through better fit and comfort.
see http://adsabs.harvard.edu/cgi-bin/nph-bib_query?b
Parent
Re:Couldn't they just.... (Score:5, Interesting)
They can't quite do that, but they can get pretty darn close. The Space Activity Suit [wikipedia.org] (aka: skinsuit) was a project to produce a spacesuit that was exposed to hard vacuum. The idea was that the human body is actually pretty good at maintaining its shape, so all you need is a bit of tight spandex to apply a pressure to the wearer, and a helmet to provide eye protection and a breathing apparatus. The suit itself would have pores in it, allowing the astronaut to actually *feel* what he's working on.
Sadly, the idea wasn't pursued despite encouraging results.
Parent
Re:Couldn't they just.... (Score:2)
Re:Couldn't they just.... (Score:4, Funny)
Parent
It's too hot in Arizoaa silly! (Score:2)
Re:Didn't Nintendo already do this? (Score:4, Funny)
Parent
Re:Didn't Nintendo already do this? (Score:2)
All dressed up but nowhere to go... (Score:2)
Is NASA changing its mission from, err, space missions, to handing out $250K grants for weird technology?
Re:All dressed up but nowhere to go... (Score:5, Informative)
Parent