SpringDamper
Linear 1D rotational spring and damper in parallel
Library
Modelica/Mechanics/Rotational/Components
Description
A spring and damper element connected in parallel.The component can beconnected either between two inertias/gears to describe the shaft elasticityand damping, or between an inertia/gear and the housing (component Fixed),to describe a coupling of the element with the housing via a spring/damper.
See also the discussionState Selectionin the User's Guide of the Rotational library.
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo_c | c | Spring constant | Scalar | |
mo_d | d | Damping constant | Scalar | |
mo_phi_rel0 | phi_rel0 | Unstretched spring angle | Scalar | |
mo_useHeatPort | useHeatPort | =true, if heatPort is enabled | Number | 0 |
mo_phi_rel | phi_rel | phi_rel | Structure | |
mo_phi_rel/fixed | fixed | Cell of scalars | true | |
mo_phi_rel/start | start | Cell of scalars | ||
mo_w_rel | w_rel | w_rel | Structure | |
mo_w_rel/fixed | fixed | Cell of scalars | true | |
mo_w_rel/start | start | Cell of scalars | ||
mo_a_rel | a_rel | a_rel | Structure | |
mo_a_rel/fixed | fixed | Cell of scalars | true | |
mo_a_rel/start | start | Cell of scalars |
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo_phi_nominal | phi_nominal | Nominal value of phi_rel (used for scaling) | Scalar | |
mo_stateSelect | stateSelect | Priority to use phi_rel and w_rel as states | Structure | |
mo_stateSelect/choice1 | StateSelect.never | Number | 0 | |
mo_stateSelect/choice2 | StateSelect.avoid | Number | 0 | |
mo_stateSelect/choice3 | StateSelect.default | Number | 0 | |
mo_stateSelect/choice4 | StateSelect.prefer | Number | 0 | |
mo_stateSelect/choice5 | StateSelect.always | Number | 0 |
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo__nmodifiers | Number of Modifiers | Specifies the number of modifiers | Number | |
mo__modifiers | Modifiers | Add new modifier | Structure | |
mo__modifiers/varname | Variable name | Cell of strings | 'tau' | |
mo__modifiers/attribute | Attribute | Cell of strings | 'start' | |
mo__modifiers/value | Value |
Ports
| Name | Type | Description | IO Type | Number |
|---|---|---|---|---|
flange_a | implicit | Left flange of compliant 1-dim. rotational component | input | 1 |
flange_b | implicit | Right flange of compliant 1-dim. rotational component | output | 1 |
Port 3 | implicit | Optional port to which dissipated losses are transported in form of heat | input | mo_useHeatPort |