Author Topic: Space Exploration Vehicle Concept  (Read 64964 times)

Offline Robotbeat

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Re: Space Exploration Vehicle Concept
« Reply #100 on: 12/05/2012 09:58 PM »
There are no /official/ plans, but I've heard some NASA engineers talking about it, and this presentation certainly talks all about it:
http://www.sei.aero/eng/papers/uploads/archive/SEV-L2-Lander-Presentation_1Oct2012.pdf

And JPL's ATHLETE lander proposal used a variant of SEV for a lander.
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Offline manboy

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Re: Space Exploration Vehicle Concept
« Reply #101 on: 12/05/2012 10:32 PM »
I found some more pictures on flickr. The first two show a different window design is being tested and the third shows that it has been switched out.
« Last Edit: 12/05/2012 10:33 PM by manboy »
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Offline Space Pete

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Re: Space Exploration Vehicle Concept
« Reply #102 on: 12/05/2012 10:49 PM »
Maybe we're looking at this the wrong way - maybe there will be no "final" window design.

As we can see in those images, changing the window design involves "simply" bolting a new forward bulkhead in place (assuming no welding is needed), and probably mating some connectors. If that's true, then the window designs could be thought of as modular.

So maybe they will build the SEVs with different window designs depending on their mission (i.e. one design for in space ops, another for surface ops, etc).
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Offline AnalogMan

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Re: Space Exploration Vehicle Concept
« Reply #103 on: 12/05/2012 11:15 PM »
Came across these two photos of the second prototype - titled as follows:

[1] MMSEV: Evaluation of habitability and mobility during tests on air bearing floor
[2] Modular Power Systems: Integrated roll-out solar arrays and fuel cell with MMSEV

Offline RocketmanUS

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Re: Space Exploration Vehicle Concept
« Reply #104 on: 12/06/2012 02:24 AM »
Maybe we're looking at this the wrong way - maybe there will be no "final" window design.

As we can see in those images, changing the window design involves "simply" bolting a new forward bulkhead in place (assuming no welding is needed), and probably mating some connectors. If that's true, then the window designs could be thought of as modular.

So maybe they will build the SEVs with different window designs depending on their mission (i.e. one design for in space ops, another for surface ops, etc).
More than likely it's not just the windows in the front that will be changed out. The rest of the body could come in different shapes and sizes.
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Online A_M_Swallow

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Re: Space Exploration Vehicle Concept
« Reply #105 on: 12/06/2012 04:55 AM »
There are no /official/ plans, but I've heard some NASA engineers talking about it, and this presentation certainly talks all about it:
http://www.sei.aero/eng/papers/uploads/archive/SEV-L2-Lander-Presentation_1Oct2012.pdf

And JPL's ATHLETE lander proposal used a variant of SEV for a lander.

ULA are getting Masten Space Systems to add Katana rocket engines to the side of a CENTAUR to produce the XEUS demonstration lander.  Its intended cargo appears to be a manned SEV.
http://masten-space.com/2012/05/21/katana-first-fire

Offline Jim

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Re: Space Exploration Vehicle Concept
« Reply #106 on: 12/06/2012 01:11 PM »
ULA are getting Masten Space Systems to add Katana rocket engines to the side of a CENTAUR to produce the XEUS demonstration lander.  Its intended cargo appears to be a manned SEV.
http://masten-space.com/2012/05/21/katana-first-fire

ULA is not involved.  They only provided the tank.  Also, it is has nothing to do with SEV project.  Videos are not evidence.
« Last Edit: 12/06/2012 01:15 PM by Jim »

Online A_M_Swallow

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Re: Space Exploration Vehicle Concept
« Reply #107 on: 12/06/2012 10:12 PM »

ULA is not involved.  They only provided the tank.  Also, it is has nothing to do with SEV project.  Videos are not evidence.

The moderators do not like the two of us arguing.  I will just say that there is a lot of contradiction in what you just said.

Offline Jim

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Re: Space Exploration Vehicle Concept
« Reply #108 on: 12/07/2012 03:04 AM »

ULA is not involved.  They only provided the tank.  Also, it is has nothing to do with SEV project.  Videos are not evidence.

The moderators do not like the two of us arguing.  I will just say that there is a lot of contradiction in what you just said.

Then stop posting incorrect statements. 

Online A_M_Swallow

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Re: Space Exploration Vehicle Concept
« Reply #109 on: 12/08/2012 05:16 AM »

ULA is not involved.  They only provided the tank.  Also, it is has nothing to do with SEV project.  Videos are not evidence.

The moderators do not like the two of us arguing.  I will just say that there is a lot of contradiction in what you just said.

Then stop posting incorrect statements. 


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Offline RocketmanUS

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Re: Space Exploration Vehicle Concept
« Reply #110 on: 01/04/2013 06:24 AM »
Does the SEV ( rover version ) use the life support system from the space suits or does it have it's own system for life support based on the life support system used on the space suits that are used for the suit ports?
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Offline pathfinder_01

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Re: Space Exploration Vehicle Concept
« Reply #111 on: 01/04/2013 06:56 AM »
Does the SEV ( rover version ) use the life support system from the space suits or does it have it's own system for life support based on the life support system used on the space suits that are used for the suit ports?

It would likely have it's own lifesupport sytems and those systems would probably not be based on the kind used in space suit. A space suit has power, mass, and volume limitations that don't apply to something larger.  The systems would likely be based on what is in Orion or perhaps the Deep space hab(but Orion would probably be the likely source).  Space suits generally have very limited lifesupport like 8 hours or so.
« Last Edit: 01/04/2013 07:19 AM by pathfinder_01 »

Offline Robotbeat

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Re: Space Exploration Vehicle Concept
« Reply #112 on: 01/06/2013 07:21 PM »
Came across these two photos of the second prototype - titled as follows:

[1] MMSEV: Evaluation of habitability and mobility during tests on air bearing floor
[2] Modular Power Systems: Integrated roll-out solar arrays and fuel cell with MMSEV
Does anyone have more information on the roll-out solar array concept? Looks interesting.
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To the maximum extent practicable, the Federal Government shall plan missions to accommodate the space transportation services capabilities of United States commercial providers. US law http://goo.gl/YZYNt0

Offline Robotbeat

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Re: Space Exploration Vehicle Concept
« Reply #113 on: 01/07/2013 12:50 AM »
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120016969_2012018967.pdf

"Environmental Controls and Life Support System (ECLSS) Design for a
Multi-Mission Space Exploration Vehicle (MMSEV)"
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Online Herb Schaltegger

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Re: Space Exploration Vehicle Concept
« Reply #114 on: 01/07/2013 02:40 PM »
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120016969_2012018967.pdf

"Environmental Controls and Life Support System (ECLSS) Design for a
Multi-Mission Space Exploration Vehicle (MMSEV)"

That has GOT to be one of the most content-empty abstracts I've ever seen, even for something out of a NASA regional center/contractor make-work project. 

The people who are planning a this concept need to stop wasting their time with idealized notional plans and bury their heads on the PDR and CDR FMEA documents for the Space Station Freedom/ISS ECLSS, and then compare those to the almost 20 years since then worth of operational data.  THAT'S how you're going to do real design work for the next long-duration spacecraft ECLSS. 

Offline apace

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Re: Space Exploration Vehicle Concept
« Reply #115 on: 01/07/2013 03:24 PM »
That has GOT to be one of the most content-empty abstracts I've ever seen, even for something out of a NASA regional center/contractor make-work project. 

They know, that their project never fly in their lifetime... so, what you expect from them?


Offline Robotbeat

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Re: Space Exploration Vehicle Concept
« Reply #116 on: 01/08/2013 01:44 AM »
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120016969_2012018967.pdf

"Environmental Controls and Life Support System (ECLSS) Design for a
Multi-Mission Space Exploration Vehicle (MMSEV)"

That has GOT to be one of the most content-empty abstracts I've ever seen, even for something out of a NASA regional center/contractor make-work project. 

The people who are planning a this concept need to stop wasting their time with idealized notional plans and bury their heads on the PDR and CDR FMEA documents for the Space Station Freedom/ISS ECLSS, and then compare those to the almost 20 years since then worth of operational data.  THAT'S how you're going to do real design work for the next long-duration spacecraft ECLSS. 
Sorry, I didn't realize that was just an abstract! Yeah, the quality of material on NTRS isn't guaranteed. This doesn't look to be anything real.
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To the maximum extent practicable, the Federal Government shall plan missions to accommodate the space transportation services capabilities of United States commercial providers. US law http://goo.gl/YZYNt0

Online A_M_Swallow

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Re: Space Exploration Vehicle Concept
« Reply #117 on: 01/08/2013 04:26 AM »
Someone appears to be designing the MMSEV and DSH ECLSS to work together.  The Deep Space Habitat (DSH) would act as a mother ship that resupplies the SEV.  I suspect that a Moon base would have to do the same to the rover MMSEV.

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120008179_2012008351.pdf
Title = Deep Space Habitat ECLSS Design Concept

Offline ChileVerde

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Re: Space Exploration Vehicle Concept
« Reply #118 on: 01/08/2013 01:34 PM »
Someone appears to be designing the MMSEV and DSH ECLSS to work together.  The Deep Space Habitat (DSH) would act as a mother ship that resupplies the SEV.  I suspect that a Moon base would have to do the same to the rover MMSEV.

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20120008179_2012008351.pdf
Title = Deep Space Habitat ECLSS Design Concept


This is an extremely interesting document, as it goes beyond just the ECLSS and describes an asteroid mission and DSH that NASA, as of 2011, presumably thought were realistic enough to serve as a DRM for the ECLSS.  As such, it provides a guide for other components that will have to be procured at some point, such as a cargo fairing, SEP vehicle, CPS, and  SEV.

It also drops a hint about radiation protection, the subject of another thread:

Quote
Deck 2 houses the individual crew quarters and has the least amount of services from the ECLSS. There has been considerable discussion regarding locating stored water in this area to provide radiation shielding for the crew. As the ECLSS intends to launch 450 kg of water, this is a possible location for this water, although the exact means of storage (smaller water bags or larger tanks) have not yet been determined.
"I canít tell you which asteroid, but there will be one in 2025," Bolden asserted.

Offline Jim

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Re: Space Exploration Vehicle Concept
« Reply #119 on: 01/08/2013 02:57 PM »
it is a study and not anything going forward.

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