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 Home > Research > Research Areas |
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| System Identification |
| Input estimation |
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This research is focused on the analysis of an inverse problem to
estimate the applied forces from measured responses indirectly. Accurate
estimation of dynamic forces acting on a structure is very important in design,
control, and diagnosis. Because of the installation problems, the direct
measurements of such forces are often difficult or impossible. So, this research
estimates the applied force by using an indirect force determination with the
measurements of the responses on the structure as the only practical way.
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| Damage detection |
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A damage detection technique based upon an incompletely measured experimental
model is studied. Conventional methods such as force balance method are
effective to detect damage locations as long as the initial finite element
model is accurate and the responses at all the degrees of freedom can be
measured experimentally. But these two conditions are practically impossible to
be met, with the exception of geometrically simple structures. This research
uses a damage detection method not utilising an accurate analytical finite
element model but based upon incompletely measured frequency responses, noting
that the reduced dynamical system is an inverse of incompletely measured
frequency responses.
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