ROVER WHEELS: Monitoring changes over time, NOTE: Read back through the thread to avoid repeating misconceptions |
ROVER WHEELS: Monitoring changes over time, NOTE: Read back through the thread to avoid repeating misconceptions |
May 16 2013, 08:35 AM
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Junior Member Group: Members Posts: 22 Joined: 10-August 12 From: Australia Member No.: 6530 |
[MOD NOTE: This thread follows on a post by Ed Truthan containing a MAHLI mosaic of MSL wheels taken on sol 275.]
Ed: zooming in on that marvellous underbelly MAHLI montage, there appears to be further (and previously noted) deformation of the wheel surfaces. Damage is most evident in the view of the front-left wheel inner surface. Such wear has previously been discussed and concerns allayed. Nevertheless, the front left wheel surface *appears* to have been punctured. We've only done 700 meters, and have 7000 more to get to Mt Sharp..... Given that more odometry has now accumulated, is any (re-)new(ed) concern valid? DeanM |
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Dec 1 2013, 02:08 AM
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
And you're forgetting - compliance in the wheel is one of the design requirements to take the edge of impacts as wheels drop off rocks etc. Making it 'stronger' just so it doesn't get holes in it ( holes that don't matter ) could very well be counter productive. I don't see much evidence that anyone actually read the viewgraphs I linked to. It's worth remembering that unlike MER, MSL relies on the wheels to absorb not only driving loads but landing shock, and the wheels may have to elastically deform a fair bit in the process. Making the wheels thicker would reduce their ability to do so; I'm not sure by how much, but it could be a concern. Well - I did ;-) |
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Dec 1 2013, 03:00 AM
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Senior Member Group: Members Posts: 2542 Joined: 13-September 05 Member No.: 497 |
-------------------- Disclaimer: This post is based on public information only. Any opinions are my own.
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