7. SUMMARY AND CONCLUSIONS
When a clutch is used in a propulsion system, discontinuities occur in the describing model. This leads to some challenging problems when performing computer simulations. The two main difficulties are numerical stiffness and changing model structure. In this paper is presented the bond graph method as a modelling framework and a clutch model which allows a constant model structure and minimizes the stiffness problem.
Simulation results from an example system using the presented clutch model, is also presented. These results indicated the usefulness of computer simulation in design analysis.
8. REFERENCES
[1] Breedveld, P.C., Rosenberg, R.C, and Zhou T.
Bibliography of bond graph theory and application.
Journal of The Franklin Institute, Vol.328 (no.5/6):
pp.1067-1109, 1991
[2] Karnopp, D.C., Margolis, D.L. and Rosenberg, R.C.
System Dynamics: A Unified Approach.
John Wiley & Sons, Inc., second edition 1990.
[3] Engja, H. The Bond Graph Technique as a Powerful
Modelling Tool. Proc. Advances in Marine Technology,
Trondheim, 1979.
[4] Karnopp. D.C. General Method for Including Rapidly
Switched Devices in Dynamic System Simulation Models.
Trans. Of the Society for Computer Simulation.
Vol.2. No.1. 1985
