WOLFRAM SYSTEM MODELER
SpoolHModel of a hydraulic spool |
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Diagram
Wolfram Language
In[1]:=
SystemModel["Hydraulic.Utilities.SpoolH"]
Out[1]:=
Information
This is a model of a hydraulic spool. It has two input pressure signals, and y is the current spool opening.
Normalization of the characteristic curve
The opening of the valve depends on the pressure difference, dP, between the two input pressure signals. The parameter pOpen defines the pressure difference when the valve starts to open, and the parameter pSwitch defines the pressure at which the valve is fully open. The dynamics of the spool are a first-order system with the time constant t1.
Normalization of the characteristic curve
The opening of the valve depends on the pressure difference, dP, between the two input pressure signals. The parameter pOpen defines the pressure difference when the valve starts to open, and the parameter pSwitch defines the pressure at which the valve is fully open. The dynamics of the spool are a first-order system with the time constant t1.
Parameters (5)
| pOpen |
Value: 10000.0 Type: Pressure (Pa) Description: Opening pressure |
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| pSwitch |
Value: 500000.0 Type: Pressure (Pa) Description: Switching pressure |
| t1 |
Value: 0.1 Type: Time (s) Description: Time constant for first-order system |
| yMax |
Value: 1 Type: Real Description: Upper limit for output value |
| yMin |
Value: -1 Type: Real Description: Lower limit for output value |
Connectors (3)
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y |
Type: RealOutput Description: 'output Real' as connector |
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port_b |
Type: Port_b Description: Port for hydraulic fluid (unfilled icon) |
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port_a |
Type: Port_a Description: Port for hydraulic fluid (filled icon) |
Components (11)
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const |
Type: Constant Description: Generate constant signal of type Real |
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limiter2 |
Type: Limiter Description: Limit the range of a signal |
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firstOrder |
Type: FirstOrder Description: First order transfer function block (= 1 pole) |
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limiter1 |
Type: Limiter Description: Limit the range of a signal |
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division |
Type: Division Description: Output first input divided by second input |
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add |
Type: Add Description: Output the sum of the two inputs |
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pressure_b |
Type: PressureSensor Description: Sensor measuring absolute pressure |
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pressure_a |
Type: PressureSensor Description: Sensor measuring absolute pressure |
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deadZone |
Type: DeadZone Description: Provide a region of zero output |
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gain1 |
Type: Gain Description: Output the product of a gain value with the input signal |
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gain2 |
Type: Gain Description: Output the product of a gain value with the input signal |
Used in Components (15)
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Hydraulic.Valves.DirectionalControl.Internal Static check valve |
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Hydraulic.Valves.DirectionalControl.HydraulicActuation Hydraulically actuated proportional valve with two ports and two states |
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Hydraulic.Valves.DirectionalControl.HydraulicActuation Hydraulically actuated proportional valve with three ports and two states |
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Hydraulic.Valves.DirectionalControl.HydraulicActuation Hydraulically actuated proportional control valve with three ports and three states |
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Hydraulic.Valves.DirectionalControl.HydraulicActuation Hydraulically actuated proportional control valve with four ports and two states |
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Hydraulic.Valves.DirectionalControl.HydraulicActuation Hydraulically actuated proportional control valve with four ports and three states |
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Hydraulic.Valves.DirectionalControl.HydraulicActuation Hydraulically actuated proportional control valve with four ports and three states |
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Hydraulic.Valves.DirectionalControl.HydraulicActuation Hydraulically actuated proportional control valve with four ports and three states |
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Hydraulic.Valves.DirectionalControl.HydraulicActuation Hydraulically actuated proportional control valve with four ports and three states |
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Hydraulic.Valves.DirectionalControl.HydraulicActuation Hydraulically actuated proportional control valve with four ports and three states |
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Hydraulic.Valves.DirectionalControl.HydraulicActuation Hydraulically actuated proportional control valve with four ports and three states |
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Hydraulic.Valves.PressureControl.Internal Static pressure relief valve |
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Hydraulic.Valves.PressureControl.Internal Static pressure reducing valve |
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PressureCompensatingValveNormallyOpen Hydraulic.Valves.PressureControl.Internal Static pressure compensating valve |
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PressureCompensatingValveNormallyClosed Hydraulic.Valves.PressureControl.Internal Static pressure compensating valve |