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WOLFRAM SYSTEM MODELER

Chamber

Base model for a hydraulic cylinder

Wolfram Language

In[1]:=

SystemModel["Hydraulic.Interfaces.Chamber"]

Out[1]:=

Information

Single acting cylinder

This is a base model for a hydraulic cylinder. This is a model with no friction and no mass of a single acting cylinder. The stroke of the cylinder cannot be negative. The volume in the chamber is given by:

where

V	:	Volume
	:	Dead volume for the chamber
A	:	Piston area
	:	Relative distance between flanges
lengthRod	:	Length of piston rod

The pressure in the chamber is given by the equation:

where

	:	Pressure change
	:	Bulk modulus of the media in the chamber
	:	Mass flow rate
	:	Density of the medium in the chamber
	:	Relative velocity between flanges
A	:	Piston area
V	:	Volume

Limitations

The piston has no mass, the cylinder has no friction, and there are no chamber walls that the piston can hit.

Reference

C. Nordling and J. Österman, Physics Handbook for Science and Engineering, 7th ed., Lund, Sweden: Studentlitteratur, 2004 p. 183.

Parameters (8)

medium	Value: Oil() Type: Medium Description: Medium in the component
useSupport	Value: false Type: Boolean Description: = true, if support flange enabled, otherwise implicitly grounded
diameterPiston	Value: Type: Diameter (m) Description: Diameter of piston
A	Value: pi * (diameterPiston / 2) ^ 2 Type: Area (m²) Description: Area of piston
Vdead	Value: A * (lengthRod + lengthPiston) * 0.005 Type: Volume (m³) Description: Dead volume
lengthRod	Value: Type: Length (m) Description: Length of piston rod
lengthPiston	Value: 0 Type: Length (m) Description: Length of piston
strokeAnimationLength	Value: 1 Type: Position (m) Description: Stroke when animation has reached its end position.

Connectors (3)

	flange	Type: Flange_b Description: Flange of component
	support	Type: Support Description: Support/housing of component
	port	Type: Port_a Description: Hydraulic port