UPDATING

Once a correlation study is performed, the task of updating the model is usually undertaken next. Providing that good correlation exists between the analytical and experimental modal vectors, then the process of updating the analytical model is achievable. However, this can be an extremely difficult and frustrating task if the correlation between the analytical and experimental modal vectors is not good. (An analogy I like to use is the extraction of experimental modal parameters from poorly collected bad data - development of an accurate modal model is a very difficult task when the data collected is not of the best quality).

There is a significant amount of material to discuss relative to the updating of the analytical model and will be addressed in a future version of this document.

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