WOLFRAM SYSTEM MODELER

DualPressureValve

Static dual pressure valve

Diagram

Wolfram Language

In[1]:=
SystemModel["Hydraulic.Valves.DirectionalControl.Internal.DualPressureValve"]
Out[1]:=

Information

This is a static model of a dual pressure valve.

Limitations

This model does not contain lumped volumes, so it does not integrate the flow and compute the pressure at the ports.

Parameters (5)

medium

Value: Oil()

Type: Medium

Description: Medium in the component

Gleak

Value: 1e-020

Type: PressureDependentLeakage (m³/(s⋅Pa))

Description: Leakage between orifices

t1

Value: 0.1

Type: Time (s)

Description: Time constant for first-order system

A

Value: 0.01

Type: Area (m²)

Description: Opening area when opened

Cd

Value: 0.62

Type: Real

Description: Coefficient of discharge for an opening

Connectors (3)

port_b

Type: Port_b

Description: Port for hydraulic fluid (unfilled icon)

port_a

Type: Port_b

Description: Port for hydraulic fluid (unfilled icon)

port_t

Type: Port_a

Description: Port for hydraulic fluid (filled icon)

Components (9)

medium

Type: Medium

Description: Medium in the component

flow_bt

Type: ControlledOrifice

Description: Controlled restriction

pressure_b

Type: PressureSensor

Description: Sensor measuring absolute pressure

pressure_a

Type: PressureSensor

Description: Sensor measuring absolute pressure

add

Type: Add

Description: Output the sum of the two inputs

flow_at

Type: ControlledOrifice

Description: Controlled restriction

gain

Type: Gain

Description: Output the product of a gain value with the input signal

sign1

Type: Sign

Description: Output the sign of the input

firstOrder

Type: FirstOrder

Description: First order transfer function block (= 1 pole)

Used in Components (1)

DualPressureValve

Hydraulic.Valves.DirectionalControl

Dual pressure valve with lumped volumes