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Real-time dynamic substructuring is a new component testing method for simulating the dynamics of complex engineering systems. The physical component is tested within a computer-generated 'virtual' environment using real-time control techniques. Delays in communication which occur between the component and the virtual environment call potentially destabilize the simulation. In this paper, the mechanism for this instability is examined using a beam-oscillator system as a case study. We will show how the stability and the amplitude response of the system change with the time delay. Numerical simulations of the reduced system as well as a full-delayed beam equation are performed. A series of experimental tests is carried out on a beam-oscillator system. Comparison of the theoretical, numerical and experimental results is presented and these agree remarkably well.
|Translated title of the contribution||Modelling real-time dynamic substructuring using partial delay differential equations|
|Pages (from-to)||1509 - 1523|
|Number of pages||15|
|Journal||Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences|
|Publication status||Published - Jun 2007|
Bibliographical notePublisher: Royal Society
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- 1 Finished
ADVANCED RESEARCH FELLOWSHIP: DYNAMICS AND CONTROL OF HYBRID SYSTEMS WITH APPLICATIONS TO REAL-TIME DYNAMIC SUBSTRUCTURING
Wagg, D. J.
1/01/04 → 1/01/09