% Verbal description for system TwoLink (TwoLink_desc.tex)
% Generated by MTT on Fri Jun 13 16:30:23 BST 1997.
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% %% Revision 1.1 1998/01/19 14:20:07 peterg
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% Revision 1.1 1997/08/15 13:31:00 peterg
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The acausal bond graph of system \textbf{TwoLink} is
displayed in Figure \Ref{TwoLink_abg} and its label
file is listed in Section \Ref{sec:TwoLink_lbl}.
The subsystems are listed in Section \Ref{sec:TwoLink_sub}.
This is a heirachical version of the example from Section 10.5 of
"Metamodelling". It uses the compound components: {\bf ROD}. {\bf
ROD} is essentially as described in Figure 10.2.
There is no gravity included in this model.
This system has a number of dynamic elements (those corresponding to
translation motion) in derivative causality, thus the system is
represnted as a Differential-Algebraic Equation (Section
\Ref{sec:TwoLink_dae.tex}). Hovever, this is of contrained-state form
and therfore can be written as a set of constrained-state equations
(Section \Ref{sec:TwoLink_cse.tex}). The corresponding ordinary
differential equation is complicated due to the trig functions
involved in inverting the E matrix.
As well as the standard representation the ``robot-form'' equations
appear in Section \Ref{sec:TwoLink_rfe}.
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