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Kinetic friction
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====
Name
====

Define the name of the link property. 

============
Physics type
============

Shows if the link property is mechanical or thermal.

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Property type
=============

Shows the link property type.

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Friction force and torque
=========================

Define the direction of the friction force. The friction force 
should be applied in opposite direction of the movement.

=================
Build-up velocity
=================

Define the velocity at which 96% of the friction force is built up. 

==============
Friction model
==============

The friction force is calculated according to the following equation:

f = fv * tanh(2/vb*v)

======== =======================
Variable Description
======== =======================
f		 friction reaction force
fv       direction of friction
vb		 build-up velocity
v		 link velocity
======== =======================

=========
Linearize
=========

The non-linear effect of the kinetic friction can be omitted in the analyses by ticking the 
linearize link properties box. Check the user help for analyses for further information on linearization.