Causality in real-time dynamic substructure testing

Causality, in the bond graph sense, is shown to provide a conceptual framework for the design of real-time dynamic substructure testing experiments. In particular, known stability problems with split-inertia substructured systems are reinterpreted as causality issues within the new conceptual framework.

As an example, causality analysis is used to provide a practical solution to a split-inertia substructuring problem and the solution is experimentally verified.