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ExoMars
bobik
post Mar 9 2017, 07:03 PM
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ESA published a couple of amazingly detailed illustrations of the Exomars rover.
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Explorer1
post Mar 9 2017, 08:00 PM
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Just noticed the wheel rims 'sag' on the portion touching the ground like a deflated tire. Was it always designed that way or did they notice Curiosity's issues with sharp rocks? What are the advantages compared with rigid wheels? This page has some info that it's for navigating dunes but is slightly vague on how it works.
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RoverDriver
post Mar 9 2017, 08:14 PM
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Deformable wheels have the advantage of increasing the contact surface therefore increasing traction. Increased traction will decrease sinkage and will get better performance (less slip). Not always and not in all conditions, but it is a nice feature. Apparently the ExoMars rover will also have active suspension which will allow to transfer load between wheels, which is nice to have under difficult situations. It would also allow to change the vehicle attitude slightly, which is a bonus when driving a solar-powered vehicle.

Both the deformable wheels and the active suspension add mechanical and software complexity. If ESA actually manages to bring it to Mars, I'm very happy and humbled by their accomplishment.

Paolo


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Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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Sean
post Mar 24 2017, 01:06 PM
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Aram Dorsum 2

Click thru for video...



Features ExoMars rover to scale.

Distilled from MOLA/HRSC x5/CTX x6/HiRISE x3

Here are some stills illustrating the rover & ridge a little better than the video managed.










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Sean
post Mar 25 2017, 09:44 PM
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Here is a 1.8 gigapixel render of the Aram Dorsum HiRISE dataset...



And here is the interactive version over at Gigapan

Can you spot Exomars Rover?







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Sean
post Mar 27 2017, 04:01 AM
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Here is a model over at Sketchfab

The VR avatar is about 6m tall due to hard lower limit on Sketchfab avatar size related to volume of the scene.

Next version will be cropped smaller to accommodate correct avatar scale.





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