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 |
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#201
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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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#202
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 2922 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 ![]() |
In this case we can see that the place was already damaged so, I guess, it was "easily" removed. Actually, we can't see yet whether the missing part is torn inside the weel or has been lost. Do you think there is any change of loosing a torn part of a weel? If yes, we'll have to look closely in the rear direction to see if we can see it.
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#203
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Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 ![]() |
The upper left fragment (in the image) is evidently torn inside. I didn't find immediate evidence yet, that this does hold for the lower right fragment, too. But the aluminium alloy should be sufficiently ductile to make it more likely, that no large fragment is lost.
A potentially lost fragment should behave similar to a pebble, cause some minor loss of weight of the rover, but without obvious implications to functionality. |
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