MTT command:
mtt OnePorts abg tex
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, to are the outputs (with the given causality) of the 6 components and to are the coresponding inputs. and are the states of the 3rd and 5th cases (ie integrated flow and effort respectively), and are the corresponding quantities for the the 4th and 6th cases, the two components in derivative causality.