WOLFRAM SYSTEM MODELER
DamperLinear (velocity dependent) damper |
 |
Wolfram Language
In[1]:=
SystemModel["Modelica.Mechanics.MultiBody.Forces.Damper"]
Out[1]:=
Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
Linear damper acting as line force between frame_a and frame_b. A force f is exerted on the origin of frame_b and with opposite sign on the origin of frame_a along the line from the origin of frame_a to the origin of frame_b according to the equation:
f = d*der(s);
where "d" is a parameter, "s" is the distance between the origin of frame_a and the origin of frame_b and der(s) is the time derivative of "s".
In the following figure a typical animation is shown where a mass is hanging on a damper.
Parameters (8)
| s_small |
Value: 1e-10 Type: Distance (m) Description: Prevent zero-division if distance between frame_a and frame_b is zero |
|---|---|
| fixedRotationAtFrame_a |
Value: false Type: Boolean Description: = true, if rotation frame_a.R is fixed (to directly connect line forces) |
| fixedRotationAtFrame_b |
Value: false Type: Boolean Description: = true, if rotation frame_b.R is fixed (to directly connect line forces) |
| useHeatPort |
Value: false Type: Boolean Description: = true, if heatPort is enabled |
| T |
Value: 293.15 Type: Temperature (K) Description: Fixed device temperature if useHeatPort = false |
| animation |
Value: true Type: Boolean Description: = true, if animation shall be enabled |
| d |
Value: Type: TranslationalDampingConstant (N⋅s/m) Description: Damping constant |
| length_a |
Value: world.defaultForceLength Type: Distance (m) Description: Length of cylinder at frame_a side |
Inputs (5)
| diameter_a |
Default Value: world.defaultForceWidth Type: Diameter (m) Description: Diameter of cylinder at frame_a side |
|---|---|
| diameter_b |
Default Value: 0.6 * diameter_a Type: Diameter (m) Description: Diameter of cylinder at frame_b side |
| color_a |
Default Value: {100, 100, 100} Type: Color Description: Color at frame_a |
| color_b |
Default Value: {155, 155, 155} Type: Color Description: Color at frame_b |
| specularCoefficient |
Default Value: world.defaultSpecularCoefficient Type: SpecularCoefficient Description: Reflection of ambient light (= 0: light is completely absorbed) |
Connectors (3)
 |
frame_a |
Type: Frame_a Description: Coordinate system a fixed to the component with one cut-force and cut-torque |
|---|---|---|
 |
frame_b |
Type: Frame_b Description: Coordinate system b fixed to the component with one cut-force and cut-torque |
 |
heatPort |
Type: HeatPort_a Description: Optional port to which dissipated losses are transported in form of heat |
Components (3)
 |
world |
Type: World Description: World coordinate system + gravity field + default animation definition |
|---|---|---|
 |
shape_a |
Type: Shape Description: Visualizing an elementary object with variable size; all data have to be set as modifiers (see info layer) |
|
shape_b |
Type: Shape Description: Visualizing an elementary object with variable size; all data have to be set as modifiers (see info layer) |
Used in Examples (3)
 |
Modelica.Mechanics.MultiBody.Examples.Elementary Simple spring/damper/mass system |
 |
Modelica.Mechanics.MultiBody.Examples.Elementary Simple spring/damper/mass system |
 |
Modelica.Mechanics.MultiBody.Examples.Elementary Demonstrate the modeling of heat losses |