Author Topic: Preasurized Rover - Idea  (Read 3001 times)

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Marco2001

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Preasurized Rover - Idea
« on: August 18, 2010, 11:49:52 AM »
Pressurized Rover
(A Mars vehicle capable of maintaining LSS during long trip)

Now we have in MCO and MCS a good martian rover that enables players to enter it for faster transportation. It is also very important that the rover actually makes the passage safer becouse the cabine is isolated from the martian wind. During dust storms the air temperature drops even to -90 deg C. Inside the rover the temp is still low (-40 to -50 at that time) but it's a great improvement - since it gaves the player much more time to find the shelter. Even then the rover doesn't support life, becouse player can still die of extreme cold, lack of oxygen, dehydration, hunger, and radiation (hopefoully implemented in the future). In case of traveling far the simple rover is no good. We need a fully preasurized rover. I've search the internet for some NASA/ESA schematics. I've found 2.
Hope you enjoy the reading and viewing videos.


---------------------------
Conceptual Design of A Mars Surface Transportation System (MSTS)



LINK: http://www.lpi.usra.edu/publications/reports/CB-979/texas.pdf

Other links:
http://www.nss.org/settlement/moon/LUNOX.html
http://www.nss.org/settlement/moon/images/lunox09.jpg
http://www.asc-csa.gc.ca/images/2007_GES_01.jpg
http://ares.jsc.nasa.gov/HumanExplore/Exploration/EXLibrary/images/Pics/MarsScenario1/06Rover.gif
http://ares.jsc.nasa.gov/HumanExplore/Exploration/EXLibrary/images/Pics/MarsScenario1/04Rover.gif
---------------------------


SPR - Small Pressurized Rover - Now known as LER (Lunar Electric Rover) or (SEV) Space Exploration Vehicle



Link - NASA's Space Exploration Vehicle (SEV): http://www.nasa.gov/exploration/home/SEV.html
Link - NASA EDGE: NE@SPR - Small Pressurized Rover: http://www.youtube.com/watch?v=JXJxzp1_3ZA
Link - Lunar Electric Rover(LER): http://www.youtube.com/watch?v=_42rZZc5gjs&feature=related
Link to links about it on NASA's page :D http://search.nasa.gov/search/search.jsp?nasaInclude=Lunar+Electric+Rover
Some schematics on-line: http://img255.imageshack.us/img255/5160/roverspev5.jpg
http://img128.imageshack.us/img128/8089/0locksuitdh7.jpg
http://www.space.com/images/070920_moon_fred_02.jpg
http://img514.imageshack.us/img514/9360/outpostsprrx8.jpg
http://upload.wikimedia.org/wikipedia/commons/1/10/Small_Pressurized_Rover-_components.jpg
http://www.spacecenterlectureseries.com/Test1/jsctour08.jpg


I think both projects are related to each other. You can find tons of stuff obout them on internet - especially on Youtube and NASA's page.
« Last Edit: August 18, 2010, 01:33:25 PM by Marco2001 »

Poland here. My time: GMT + 1h
Writing a book about Mars. Any ideas? Type to me.
I'am an Astrobiology/Biology student.

profit004

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Re: Preasurized Rover - Idea
« Reply #1 on: August 18, 2010, 09:20:21 PM »
Hmm..
Wow an actual rover design that does not suck badly..   Most of them I have seen are obviously top heavy and way too narrow of a wheel base.

It looks significantly more complex than is necessary  but it at least looks usable.

I  had another one floating around that was much more practical for martian terrain somewhere on the forum. Even though I designed it in my head in like 60 seconds I really think it would be much more suitable than anything I am seeing here for long distance travel on mars.


-> These here are useless for mars and martian terrain unless someone ships a bulldozer and makes them a road.
{ these are all the same.. and will not work on mars. }
http://www.nasa.gov/exploration/home/SEV.html\
http://www.youtube.com/watch?v=JXJxzp1_3ZA
http://www.youtube.com/watch?v=_42rZZc5gjs&feature=related
http://img514.imageshack.us/img514/9360/outpostsprrx8.jpg

(Ohh they are not completely oblivious.. this one isn't designed to go anywhere near mars. *Feels a little better now)


{too top heavy}
http://img255.imageshack.us/img255/5160/roverspev5.jpg

{not enough ground clearance}
http://upload.wikimedia.org/wikipedia/commons/1/10/Small_Pressurized_Rover-_components.jpg
 Looks like it might Lift up.. but in that case.. too top heavy. too small of wheels.

This is a good idea with the suit.
http://img128.imageshack.us/img128/8089/0locksuitdh7.jpg
http://www.space.com/images/070920_moon_fred_02.jpg\

{This one here is the only one that looks like it MIGHT work... but it is far too complicated.}
http://img190.imageshack.us/img190/5654/preasurizedrover.jpg

{not terrible, but will not cross most martian terrain. Could be used in the real flat area's}
http://ares.jsc.nasa.gov/HumanExplore/Exploration/EXLibrary/images/Pics/MarsScenario1/04Rover.gif
http://ares.jsc.nasa.gov/HumanExplore/Exploration/EXLibrary/images/Pics/MarsScenario1/06Rover.gif
http://www.nss.org/settlement/moon/images/lunox09.jpg
http://www.asc-csa.gc.ca/images/2007_GES_01.jpg
http://www.nss.org/settlement/moon/LUNOX.html
I wonder who NASA has working for them.. I mean have they even bothered too LOOK at the freaking pictures of the terrain they bothered spending millions of dollars to get a camera shot of?

Here are some of the things from another forum post a while ago where we discussed transport.


I am thinking probably automated heavy duty trucks with multiply redundant drive systems and very large wheels is the most likely short term solution... It would need a very wide stance for stability as well... a rollover would be catastrophic...(Sadly useless designs permeate pop culture... For example: This concept here involves so much wishful thinking it borders on santa clause.. Anyone trying to use this on mars will probably die or not get where they want to go... For one thing I can see it would roll over and continue rolling on an incline of 10-25 degrees depending on if those suspension joints compensated or not... A medium bump about 2.5 feet tall could flip it if they were rigid...  I have seen no practical designs rendered anywhere. )
 
Something like this traveling at a sane speed, with a wider base,and a lower center of gravity,  would be a lot better... Yes, I know it is a monster truck.. but many of the obstacles they face are similar to ones that will be on mars.
 
*Yes I know the rovers wheels were small, but they only traveled a couple feet a day and had time to plot every rock obstacle out weeks in advance. Also please note that even though they have traveled less than 18 miles total, one is currently stuck...

There will not be enough labor available for manual driving in many instances... There certainly will not be enough labor or equipment available to produce a decent road...  Every route will have to be mapped ahead of time and obstacles will have to be bypassed or traversed instead of removed...  The wheels will have to be very large... Probably diameter = 2.5-6 meters... ground clearance would need to be at least 1-3 meters, or route choices would be VERY limited... thankfully the gravity is less.. Could be done with current earth based technology... Rubber tires probably would not survive long in the cold with the high ultraviolet content.. would have to be a special material.. possibly Kevlar strengthened air tight material... possibly rubber covered with another material to protect it.. weight issues with rubber... More likely Kevlar fiber if earth made.  Wire mesh possible, however unlikely due to long term fatigue issues...  If rubber could be synthesized on mars, that would be the most likely solution, with internal bands of Kevlar or something similar (steel may become brittle) and an external coating to protect it.

I did a horrible MSpaint rendering on what could work in theory.. imagine a wheel base 2-3x the height of the vehicle, since I did not do a isometric rendering. It is necessary due to the height of the obstacles on mars to prevent a roll over.
{Image not available}

In any event it needs to be able to traverse something like this ->


Or this *Note the tiny rover for scale of the rocks*


And this ->


Roads could in theory be made mid term by fabricating a bulldozer type machine out of martian materials, however it would be cost prohibitive to ship one in from earth... To work effectively on mars it would have to weigh more than 2x what it does on earth.  Could not be automated or telepresenced , humans can feel things sitting in a bulldozer that are required for their operation(just trust me on this, if you have driven a bulldozer, or a loader there are things you just feel and cannot be transmitted in another form)... due to the stresses the operator would probably have to be in a pressure suit all the time because a shirt sleeve cabin would be prone to critical failure. Dozers flex an incredible amount during operation, and maintaining seals would be problematic. Might be possible though.
« Last Edit: August 18, 2010, 10:28:40 PM by profit004 »

Marco2001

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Re: Preasurized Rover - Idea
« Reply #2 on: August 22, 2010, 05:21:29 AM »

Poland here. My time: GMT + 1h
Writing a book about Mars. Any ideas? Type to me.
I'am an Astrobiology/Biology student.

profit004

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Re: Preasurized Rover - Idea
« Reply #3 on: August 22, 2010, 03:04:04 PM »
http://www.youtube.com/watch?v=sCgQ0c6ToL8&NR=1

That one is not bad at all.  The tires are a decent size, and a nice low center of gravity compared to them.

Decent ground clearance.. 

Simple design....

Fair maneuverability... Recheck that.. 0 turning radius.... Excellent maneuverability.

it handles small rocks in an intelligent manner.

My only concern is how they managed to design the floating tires.  If that was done well this would be an excellent pressurized rover.

* And of course the only idea for a martian pressurized rover that might work does not come from NASA..   Go figure.