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OnePorts_abg.tex

MTT command:

mtt OnePorts abg tex

Figure 1.1: System OnePorts: acausal bond graph

The acausal bond graph of system OnePorts is displayed in Figure 1.1 (on page [*]); it contains the one port components: R, C and I in each of the two possible causalities.

Note that the R has no prefered causality and, in this case, a causal stroke must be provided by the user. On the other hand, the C and I components are assigned prefered causality by MTT in the 3rd and 5th cases where no stroke is assigned by ther user. In the 4th and 6th cases, the user provides a causal stroke to put the components into derivative causality. 1.2 (on page [*]) shows the causality automatically completed for the 3rd and 5th cases.

Section 1.5 (on page [*]) gives the system equations, $ y_1$ to $ y_6$ are the outputs (with the given causality) of the 6 components and $ u_1$ to $ u_6$ are the coresponding inputs. $ x_1$ and $ x_2$ are the states of the 3rd and 5th cases (ie integrated flow and effort respectively), $ z_1$ and $ z_2$ are the corresponding quantities for the the 4th and 6th cases, the two components in derivative causality.



Subsections
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