WOLFRAM SYSTEM MODELER
DCVM22Mechanically actuated proportional valve with two ports and two states |
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Diagram
Wolfram Language
In[1]:=
SystemModel["Hydraulic.Valves.DirectionalControl.MechanicalActuation.DCVM22"]
Out[1]:=
Information
This is a model of a control valve with two ports and two states. The valve has two ports, a and b. The insignal, u, to the spool is the force on the mechanical flange. The valve is controlled by a mechanical spool with dynamics; see SpoolM.
Control valve with two ports and two states
The valve is closed, and there is only leakage flow between the ports if there is no overlap
Open valve, u = 1; there is flow from a to b
Control valve with two ports and two states
The valve is closed, and there is only leakage flow between the ports if there is no overlap
Open valve, u = 1; there is flow from a to b
Implementation
This valve basically consists of an orifice controlled by a spool.Parameters (10)
| medium |
Value: Oil() Type: Medium Description: Medium in the component |
|---|---|
| Gleak |
Value: 1e-020 Type: PressureDependentLeakage (m³/(s⋅Pa)) Description: Leakage between orifices |
| overlap |
Value: 0 Type: Length (m) Description: Spool overlap, a number between -1 and 1; 0 if no overlap |
| AMax |
Value: 0.001 Type: Area (m²) Description: Maximum opening area |
| Cd |
Value: 0.62 Type: Real Description: Coefficient of discharge for the opening |
| V |
Value: 0.0001 Type: Volume (m³) Description: Volume of control valve |
| L |
Value: 1 Type: Length (m) Description: Valve length |
| x0 |
Value: 0 Type: Position (m) Description: Minimum valve position |
| f |
Value: 80 Type: Frequency (Hz) Description: Spool resonance frequency |
| d |
Value: 0.9 Type: Damping (s⁻¹) Description: Spool damping |
Connectors (3)
Components (5)
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medium |
Type: Medium Description: Medium in the component |
|---|---|---|
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volume_a |
Type: Volume Description: Fixed volume with fluid storage |
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volume_b |
Type: Volume Description: Fixed volume with fluid storage |
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flow_ab |
Type: ControlledOrifice Description: Controlled restriction |
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spoolWM |
Type: SpoolM Description: Model of a mechanic spool |