WOLFRAM SYSTEM MODELER

Straight4Port

Basic building block for directional control valves

Diagram

Wolfram Language

In[1]:=
SystemModel["Hydraulic.Valves.DirectionalControl.Internal.States.Straight4Port"]
Out[1]:=

Information

This model is a basic building block for directional control valves. When the input signal is 1, ports a-p and b-t are connected.

Parameters (6)

medium

Value: Oil()

Type: Medium

Description: Medium in the component

Gleak

Value: 9.999999999999999e-21

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

Description: Leakage between orifices

overlap

Value: 0

Type: Length (m)

Description: A number between -1 and 1; 0 if no overlap

AMax

Value: 0.0001

Type: Area (m²)

Description: Maximum opening area

Cd

Value: 0.62

Type: Real

Description: Coefficient of discharge for the opening

k

Value: 1

Type: Real

Description: Gain parameter for control signal u

Connectors (5)

port_p

Type: Port_a

Description: Port for hydraulic fluid (filled icon)

port_t

Type: Port_a

Description: Port for hydraulic fluid (filled icon)

port_b

Type: Port_b

Description: Port for hydraulic fluid (unfilled icon)

port_a

Type: Port_b

Description: Port for hydraulic fluid (unfilled icon)

u

Type: RealInput

Description: 'input Real' as connector

Components (4)

medium

Type: Medium

Description: Medium in the component

gain

Type: Gain

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

flow_pa

Type: ControlledOrifice

Description: Controlled restriction

flow_tb

Type: ControlledOrifice

Description: Controlled restriction

Used in Components (7)

V42

Hydraulic.Valves.DirectionalControl.Internal

Partial valve with four ports and two states

V43ClosedCenter

Hydraulic.Valves.DirectionalControl.Internal

Partial valve with four ports and three states

V43DiagonalCenter

Hydraulic.Valves.DirectionalControl.Internal

Partial valve with four ports and three states

V43FloatingCenter

Hydraulic.Valves.DirectionalControl.Internal

Partial valve with four ports and three states

V43OpenCenter

Hydraulic.Valves.DirectionalControl.Internal

Partial valve with four ports and three states

V43TandemCenter

Hydraulic.Valves.DirectionalControl.Internal

Partial valve with four ports and three states

V63

Hydraulic.Valves.DirectionalControl.Internal

Partial valve with six ports and three states