WOLFRAM SYSTEM MODELER
HydrostaticTransmissionExample circuit of a pump driving a motor |
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Diagram
Wolfram Language
In[1]:=
SystemModel["Hydraulic.Examples.Rotation.HydrostaticTransmission"]
Out[1]:=
Information
This model shows an example of how to model a hydrostatic transmission with an angular velocity feedback controlling a variable displacement pump. The system is protected by one pressure relief valve on each side. Additional oil is supplied to the system from the pressure sources through very small orifices.
Fig. 1 shows the desired motor speed and the actual motor speed. Fig. 2 shows how the pump displacement is used to control the motor speed.
Fig. 1 Motor speed and reference speed
Fig. 2 Pump displacement setting
Fig. 1 shows the desired motor speed and the actual motor speed. Fig. 2 shows how the pump displacement is used to control the motor speed.
Fig. 1 Motor speed and reference speed
Fig. 2 Pump displacement setting
Parameters (1)
| medium |
Value: Oil() Type: Medium Description: Medium in the component |
|---|
Components (22)
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medium |
Type: Medium Description: Medium in the component |
|---|---|---|
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constantSpeed |
Type: ConstantSpeed |
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pressureReliefValve1 |
Type: PressureReliefValve |
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tank1 |
Type: Tank |
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tank2 |
Type: Tank |
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pressureReliefValve2 |
Type: PressureReliefValve |
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motor |
Type: Motor |
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pump |
Type: PumpVariable |
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volume1 |
Type: Volume |
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volume2 |
Type: Volume |
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tank3 |
Type: Tank |
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tank4 |
Type: Tank |
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speedSensor |
Type: SpeedSensor |
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step |
Type: Step |
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feedback |
Type: Feedback |
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gain1 |
Type: Gain |
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gain2 |
Type: Gain |
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integrator |
Type: Integrator |
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add1 |
Type: Add |
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firstOrder1 |
Type: FirstOrder |
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fixedLaminarThrottle1 |
Type: FixedLaminarThrottle |
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fixedLaminarThrottle2 |
Type: FixedLaminarThrottle |