Abstract
In the paper basic procedures for computational updating of analytical model parameters are presented. The procedures have been investigated thoroughly in recent years with respect to
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the numerical estimation techniques for solving the updating equations;
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the influence of different model parametrisations defining the type and the location of the erroneous parameters;
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the type of the residuals formed by the test/analysis differences to be minimised;
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the requirements to be posed on the initial analysis model.
The residuals presented are formed by force and response equation errors, by eigenfrequency and mode shape errors and by frequency response errors. The procedures have been derived to handle incomplete test vectors, where the number of measured degrees of freedom (DOF) is much less than the DOF no. of the computational model. Finally an example of updating a laboratory test structure is reported including some recommendations and experiences.
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Link, M. (1999). Updating of Analytical Models — Basic Procedures and Extensions. In: Silva, J.M.M., Maia, N.M.M. (eds) Modal Analysis and Testing. NATO Science Series, vol 363. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4503-9_14
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DOI: https://doi.org/10.1007/978-94-011-4503-9_14
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