Velocity Dependent Friction: Difference between revisions

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<math>t + \Delta t\!</math>
<math>t + \Delta t\!</math>


<math>\mu\!</math>
<math>\delta\!</math>


<math>{\mu _{fast}} - \left( {{\mu _{fast}} - {\mu _{slow}}} \right) \cdot {e^{ - transRate\, \cdot \,\left| v \right|}}\!</math>
<math>{\mu _{fast}} - \left( {{\mu _{fast}} - {\mu _{slow}}} \right) \cdot {e^{ - transRate\, \cdot \,\left| v \right|}}\!</math>

Revision as of 03:25, 23 January 2012



This command is used to construct a VDependent friction model object. It is useful for modeling the behavior of "PTFE" or PTFE-like materials sliding on a stainless steel surface. For a detailed presentation on the velocity dependence of such interfaces please refer to Constantinou et al. (1999).

frictionModel VDependent $frnTag $muSlow $muFast $transRate
$frnTag unique friction model object tag
$muSlow coefficient of friction at low velocity
$muFast coefficient of friction at high velocity
$transRate transition rate from low to high velocity


<math>t + \Delta t\!</math>

<math>\delta\!</math>

<math>{\mu _{fast}} - \left( {{\mu _{fast}} - {\mu _{slow}}} \right) \cdot {e^{ - transRate\, \cdot \,\left| v \right|}}\!</math>


EXAMPLES:

frictionModel VDependent 1 0.085 0.163 0.77


Code Developed by: Andreas Schellenberg, University of California, Berkeley.

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