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Unread 13-01-2010, 23:02
BrianCloutier BrianCloutier is offline
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Impact of Bumps

CRUSH whipped up a prototype of a robot and bump today, and played around with the two to get a feel for how the robot could handle bumps. Here's a few pictures of our prototypes. We also took a video, after it's done uploading I'll post a link to it.

http://blog.crush1011.org/post/33349...today-and-were
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Unread 14-01-2010, 10:43
BrianCloutier BrianCloutier is offline
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Re: Impact of Bumps

Here's the video I promised of a robot tackling the bump, http://blog.crush1011.org/post/33359...-video-summing (We used a prototype because none of our existing robots had enough ground clearance to even attempt the bump.)

And another summing up our entire meeting yesterday, http://blog.crush1011.org/post/33359...were-trying-to

Enjoy!
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Unread 14-01-2010, 11:28
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gblake gblake is offline
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Re: Impact of Bumps

Guys,

Nice work - Be careful to pay attention to how a robot will behave when it is propelled by wheel torques instead of pulled by a rope.

The forces the wheels create have different locations and directions than the rope force, and as the robot tilts they vary differently than the rope force varys.

Blake
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Unread 14-01-2010, 12:29
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Jimmy Nichols Jimmy Nichols is offline
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Re: Impact of Bumps

Quote:
Originally Posted by gblake View Post
Guys,

Nice work - Be careful to pay attention to how a robot will behave when it is propelled by wheel torques instead of pulled by a rope.

The forces the wheels create have different locations and directions than the rope force, and as the robot tilts they vary differently than the rope force varys.

Blake
Especially with a wide robot. A more narrow robot would be more stable going over the bump.
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Unread 15-01-2010, 13:05
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Re: Impact of Bumps

Quote:
Originally Posted by Jimmy Nichols View Post
Especially with a wide robot. A more narrow robot would be more stable going over the bump.
not necessarily, since the angle of the bump is 45 degrees, a narrow robot may make a turn while its front falls forward after going up the bump. (im not sure if you can understand what i wrote)
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