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Inflatables in Space

Posted September 07, 2019 12:00 AM by M-ReeD
Pathfinder Tags: Habitat space

I am not a scientist, but even I see the flaws in the plan to launch a bouncy-house type structure into space.

Sierra Nevada Corporation, a United States Aerospace Company, has unveiled its full-scale prototype of an inflatable habitat that could one day accommodate astronauts in deep space.

Unveiled on August 21 at Johnson Space Center in Houston, the three-floor module is roughly 27 ft in diameter and 27 ft long with an estimated internal volume of 10,000 ft3. The module's first floor is designated for food and equipment storage while the second floor is a designated farming module where astronauts can grow food via an astrogarden, which is a wall of plants. Additionally, the second floor also offers storage for laboratory instruments to be used in experiments and the third floor is a designated sleeping and dining module.

At one-third the volume of the International Space Station, the inflatable module can be compressed, stored and transported in a single-launch payload. The module is composed of vectron, which is a lightweight material used in the manufacturing of bulletproof vests. As such, the module can shrink down to roughly 10 ft and fit in the payload fairings of most standard heavy-duty rockets. Once transported, the module can be deployed and inflated in just a matter of days, according to its developers.

In January 2018, Sierra Nevada Corporation was one of just five companies tasked with creating a prototype of astronaut living quarters for NASA’s Lunar Gateway project, which will reportedly function as a platform for future deep space missions. However, NASA eventually awarded a contract to Northrup Grumman to build the modules for the gateway.

For now, it is unclear what will become of the inflatable prototype, but its developers believe that as the gateway grows, more habitats will be necessary.

No matter its ultimate application, that the material is made from the same stuff used to manufacture bulletproof jackets is not enough to erase the vision of rogue satellites and other space debris puncturing the space bouncy house, and sending it along with some poor unsuspecting astronaut sputtering deeper into space.

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#1

Re: Inflatables in Space

09/07/2019 10:31 PM

The Bigelow Expandable Activity Module has been inflated on the ISS since 2016.

Details Here

It has "exceeded performance expectations" and expected to remain attached until 2028.

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#5
In reply to #1

Re: Inflatables in Space

09/09/2019 4:24 AM

You don't need rocket propulsion when your Bigelow house gets a hole in it, it's just the steering that becomes a little problamatical but then with a vacuum how far can you go on one decompression?.

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#2

Re: Inflatables in Space

09/08/2019 5:39 AM

Insofar as resistance to small mass high speed particle impact,a flexible material is more resistant than a solid material.

They engrave headstones using a rubber template overlay.

Then they sandblast the granite.

The sand does not erode the rubber, it bounces off.

This is simply latex rubber or Buna N rubber.No fiber reinforcement.

I can see how this exotic material could resist micro meteorite impacts even though they are traveling at much higher velocities.

In the case of a large mass impact,it doesn't matter what the material is,it's a goner.

I have also read about self healing fabrics that flow to seal holes automatically.

I don't know the weight of these fabrics,but it looks like a possible future use for them.

Better to bend than to break.

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#3

Re: Inflatables in Space

09/08/2019 6:46 AM

Bigelow Aerospace has been developing his inflatable space living modules for a couple of decades now. Space x intends / is using them to produce a rotating space station for the wealthy to escape the earth they have been destroying for some time now.

Space x is using concepts developed by the air force for the existing space station. They need to start using American submarine concepts for handling air, water, ballast, power and food. Remember the earth will not be providing food for some time. Youtube has several articles on Space X space station.

Might want to watch the Sci Fi movie Elysium.

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#7
In reply to #3

Re: Inflatables in Space

09/09/2019 3:33 PM

Welcome to CR4. The desire in this forum is not to politicize issues here, but rather discuss their technical issues or merits.

Was this really germane to your post?

" . . . for the wealthy to escape the earth they have been destroying for some time now."

One could say that there are plenty of 'poor' people who 'destroy' the earth as well.

The unfortunate consequence of adding little tidbits like this to your post is that any of your good points are now lumped in with a politicizing statement and detracts from the message.

Yes, you will find blatantly political posts, although the desire on this forum is to host those in the "Break Room".

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#8
In reply to #7

Re: Inflatables in Space

09/09/2019 4:34 PM

I regret you have taken offence at my post. I am attempting to show that the companies involved have obtained the backing and existing reasons to construct the best idea for a space station conceived to date.

However their scale I find very below workable. Our submarines have problems stay out to sea for more than 2 months because of food. As on earth there are very large areas devoted to feeding our population. Everything enlarges and calls for more people / robots to keep things working.

So far they have done a good job. However as a qualified enlisted ships diving officer on my last submarine I have noticed several factors that the air force is not familiar with that we deal with on a minute by minute, hour by hour, day by day functions.

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#4

Re: Inflatables in Space

09/08/2019 5:09 PM

I'm not a scientist, either, but I suspect the design is a bit more sophisticated than a "bouncy-house".

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#6

Re: Inflatables in Space

09/09/2019 2:20 PM

Will they stock them with inflatable party sheep?

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