Multi-Linear Velocity Dependent Friction: Difference between revisions
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Velocity and friction points need to be equal or larger than zero (no negative values should be defined). | Velocity and friction points need to be equal or larger than zero (no negative values should be defined). | ||
The number of provided velocity points needs to be equal to the number of provided friction points. | The number of provided velocity points needs to be equal to the number of provided friction points. | ||
{| | {| | ||
| style="background: | | style="background:lime; color:black; width:800px" | '''frictionModel VelDepMultiLinear $frnTag -vel $velocityPoints -frn $frictionPoints''' | ||
|} | |} | ||
| Line 23: | Line 22: | ||
[[File: | [[File:VelDepMultiLinear.png|500px]] | ||
---- | |||
EXAMPLE: | EXAMPLE: | ||
frictionModel VelDepMultiLinear 1 -vel 0.0 0.1 2.0 8.0 10.0 -frn 0.163 0.085 0.150 0.163 0.163 | frictionModel VelDepMultiLinear 1 -vel 0.0 0.1 2.0 8.0 10.0 -frn 0.163 0.085 0.150 0.163 0.163 | ||
---- | |||
RELATED TO: | |||
* [http://opensees.berkeley.edu/wiki/index.php/Flat_Slider_Bearing_Element Flat Slider Bearing Element] | |||
* [http://opensees.berkeley.edu/wiki/index.php/Single_Friction_Pendulum_Bearing_Element Single Friction Pendulum Bearing Element] | |||
* [http://opensees.berkeley.edu/wiki/index.php/Triple_Friction_Pendulum_Element Triple Friction Pendulum Bearing Element] | |||
Latest revision as of 20:07, 18 September 2014
- Command_Manual
- Tcl Commands
- Modeling_Commands
- model
- uniaxialMaterial
- ndMaterial
- frictionModel
- section
- geometricTransf
- element
- node
- sp commands
- mp commands
- timeSeries
- pattern
- mass
- block commands
- region
- rayleigh
- Analysis Commands
- Output Commands
- Misc Commands
- DataBase Commands
This command is used to construct a VelDepMultiLinear friction model object. The friction-velocity relationship is given by a multi-linear curve that is define by a set of points. The slope given by the last two specified points on the positive velocity axis is extrapolated to infinite positive velocities. Velocity and friction points need to be equal or larger than zero (no negative values should be defined). The number of provided velocity points needs to be equal to the number of provided friction points.
| frictionModel VelDepMultiLinear $frnTag -vel $velocityPoints -frn $frictionPoints |
| $frnTag | unique friction model object tag |
| $velocityPoints | array of velocity points along friction-velocity curve |
| $frictionPoints | array of friction points along friction-velocity curve |
EXAMPLE:
frictionModel VelDepMultiLinear 1 -vel 0.0 0.1 2.0 8.0 10.0 -frn 0.163 0.085 0.150 0.163 0.163
RELATED TO:
- Flat Slider Bearing Element
- Single Friction Pendulum Bearing Element
- Triple Friction Pendulum Bearing Element
Code Developed by: Andreas Schellenberg, University of California, Berkeley.