Single Component Frequency-Dependent Elements
Component Name
ac_single_f_d_element
Source Directory
/$MDI_RIDE_PLUGIN/template_builder/udes/ac_single_f_d_element
Description
This component is a one degree of freedom force modeled by three linear springs and three linear dampers; the elements may be connected in different ways and eventually deactivated in order to create the following:
1. Linear Pfeffer element (one spring in parallel with a series damper - parallel spring damper)
2. Simple FD damper (one spring in parallel with a series spring damper)
3. Simple FD bushing (one spring in series with a parallel spring damper)
4. General element (one parallel spring damper in parallel with a series of two parallel spring dampers)
Using the replace feature in Standard Interface, you can create a general frequency-dependent element as a replacement for a standard Adams Car bushing. In the replacement element dialog box, select a property file and setting preload for the component.
Specifications
.ARIDE.forcess.ac_single_f_d_element
Parameters
Parameter: | Type: | Function: |
|---|
property_file | string variable | Name of property file |
preload | real variable | Element preload |
type | string variable | Element type |
scale_factor | real variable | Force scale factor |
geo_scale | real variable | Geometry scale |
Input Parameters
Input parameter: | Type: | Function: |
|---|
i_marker | object variable | Action marker |
j_marker | object variable | Reaction marker |
Output Parameters
none
Objects:
Object: | Type: |
|---|
C1 | real variable |
K1 | real variable |
C2 | real variable |
K2 | real variable |
C3 | real variable |
K3 | real variable |
F01 | real variable |
F03 | real variable |
Uvar | state variable |
Outvark1c1 | state variable |
State_array | X_state_array |
Output_array | Y_output_array |
Ic_array | IC_array |
Input_array | U_input_array |
Force | single_component_force |
Gse | general_state_equation |
Request | request |
Graphic | geometry |
Dm_calc | real variable |
Request Definition
request
user (904,i_marker,j_marker)
Component name: | Component units: | Definition: |
|---|
Displacement | length | Distance between i_marker and j_marker |
Velocity | velocity | Relative velocity of i_marker and j_marker |
Force | force | Force between i_marker and j_marker |
Design Parameters
Parameter: | Type: | Function: |
|---|
scaling_factor | real variable | Scaling factor (DOE) |
Macros
Create Macro: (call: acar template_builder instance ac_single_f_d_element create) Adams Car Ride executes this macro when you create an instance of the definition ac_single_f_d_element.
Modify Macro: (call: acar template_builder instance ac_single_f_d_element modify) Adams Car Ride executes this macro when you modify an instance of the definition ac_single_f_d_element.