II

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II

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Library

Bond Graph

Use

Domains: Continuous. Size: 1-D. Kind: Block Diagrams, Bond Graphs.

Description

This model represents a two port I-element. Normally the equation of a two port I-element is written in vector notation as:

 

p.f = (1/I) * int(p.e)

 

When the I matrix is singular simulation will not be possible. Therefore the element is described in a safer notation as:

 

p.f = A * int(p.e) , with A = (1/I);

 

Both ports have a preferred effort out causality:

 

state1 = int (p1.e);

state2 = int (p2.e);

p1.f = a11*state1 + a12*state2;

p2.f = a21*state1 + a22*state2;

Interface

Ports

Description

p1,p2

Input ports of the storage element.

Causality

 

preferred effort out p1

preferred effort out p2

A flow out causality results in a derivative constitutive equation.

Outputs

 

state1

state2

 

Parameters

 

a11, a12, a21, a22

The storage element constants.

Initial Values

 

state1_initial

state2_initial

The initial values of the storage element.