IBM Journal of Research and Development
IBM Skip to main content
  Home     Products & services     Support & downloads     My account  

  Select a country  
Journals Home  
  Systems Journal  
Journal of Research
and Development
    Current Issue  
    Recent Issues  
    Papers in Progress  
    Search/Index  
    Orders  
    Description  
    Patents  
    Recent publications  
    Author's Guide  
  Staff  
  Contact Us  
  Related links:  
     IBM Research  

IBM Journal of Research and Development  
Volume 31, Number 3, Page 382 (1987)
Computer-aided Design
  Full article: arrowPDF   arrowCopyright info





   

An algorithm for automatic identification of R-fields in bond graphs

by S. J. Hood, R. C. Rosenberg, D. H. Withers, T. Zhou
Bond graphs may be used to model the power flow in dynamic systems. They are especially attractive for modeling systems which function in coupled energy domains, for example, electromechanical systems. For such systems, bond graphs can be used to provide a natural subdivision into power/energy fields: storage, sources, transformers, and dissipation. In the case of nonlinear dissipative fields, implicit, nonlinear, coupled systems of algebraic equations may arise. Causality assignment on the bond graph provides a basis for detecting implicit formulations. This paper presents an algorithm for detection and solution of these forms within a model, thereby providing an opportunity for efficient numerical solution, and includes a brief introduction to bond graphs via an electromechanical system example.
Related Subjects: Computer-aided design; Electromechanics; Graph theory; Mathematics (applied)