Ask Your Question
2

URDF coefficients of friction mu1 and mu2 question

asked 2011-12-01 09:11:48 -0500

jimmycuff gravatar image

updated 2011-12-14 01:55:27 -0500

Can someone explain what these coefficients of friction mean? From looking at this tutorial it says that "Here mu1 and mu2 are the friction coefficients of the wheels."

http://www.ros.org/wiki/urdf/Tutorials/UnderstandingPR2URDFGazeboExtension

However, when looking at the PR2 urdf for the wheels these coefficients are fairly large (100.0). That seems extremely high for a coefficient of friction.

The coefficient of rubber on dry concrete is 0.6-0.85 for example.

Thanks in advance!

edit retag flag offensive close merge delete

Comments

1

It really starts to get annoying with all those deleted Gazebo ROS tutorials with no replacement link...,

Mehdi. gravatar image Mehdi.  ( 2015-06-17 04:36:08 -0500 )edit

1 Answer

Sort by ยป oldest newest most voted
1

answered 2011-12-14 09:27:14 -0500

Wim gravatar image

My best guess is that the numbers were chosen very high to make sure the wheels could never slip, even though the numbers do not make any sense in the physical world.

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Question Tools

Stats

Asked: 2011-12-01 09:11:48 -0500

Seen: 2,401 times

Last updated: Dec 14 '11