Bond Graph
Domains: Continuous. Size: 3-D. Kind: Bond Graphs.
This model is the multiport equivalent of the single dissipative element. Consequently the constitutive equation must be written as a matrix-vector multiplication. This model can have an effort out as well as a flow out causality. In the last case the constitutive equation, as shown below, is simply inverted.
effort out causality:
p.e = R*p.f;
flow out causality:
p.f = inverse(R)*p.e;
Ports |
Description |
p[3] |
Input port of the R-element (columnvector with size 3). |
Causality |
|
indifferent |
|
Parameters |
|
R |
The friction parameters (matrix of size [3,3]). |
The flow out equation contains an inverted R matrix. The elements of this matrix should be chosen with care to prevent this matrix from becoming singular.