Journal papers by Gawthrop in 1991

[1] H. Demircioglu and P. J. Gawthrop. Continuous-time generalised predictive control. Automatica, 27(1):55--74, January 1991. [ bib | http | .pdf ]
[2] P. J. Gawthrop. Bond graphs: A representation for mechatronic systems. Mechatronics, 1(2):127--156, April 1991. [ bib | http | .pdf ]
A tutorial introduction to the use of bond graphs in modelling mechatronic systems is given. Four illustrative examples of increasing complexity are given, culminating in a two link robotic arm with flexible drives. The role of symbolic algebra techniques in this context is emphasized and it is suggested that the marriage of bond graphs and symbolic techniques provides the basis of computer-based support tools for the analysis and design of mechatronic systems.

[3] J. W. Ponton and P. J. Gawthrop. Systematic construction of dynamic models for phase equilibrium processes. Computers chem Engng, 15(12):803--808, 1991. [ bib | http | .pdf ]
A systematic approach to constructing dynamic models involving phase equilibrium is presented.

The view appears to be widely held that the dynamic modelling of VLE systems invariably leads to an "index problem". We show that this in general is not the case if an appropriate model formulation is used. This is provided by our systematic procedure.

Index problems do in general occur when a state variable is constrained by an implied control system. Some properties of such systems are discussed and it is shown that it may not in practice be useful to attempt the solution of intractable index problems, as these may differ substantially from the behaviour of an achievable control system.

[4] J. B. Roberts, A. Kountzeris, and P. J. Gawthrop. Parametric identification techniques for roll decrement data. Int. Shipbuilding Progr., 38(415):271--293, 1991. [ bib ]

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