Abstract: The paper presents an algorithm for updating of a structure computer simulation model. The algorithm designed for prompt elimination of differences in the manifestations of a structure and manifestations of its computational model, identified during the monitoring of structure. Correction is to adjust the eigenvalues spectrum of the calculation model using the values of the frequency of free vibrations obtained in the course of structure monitoring. It is believed that by measurements during the monitoring, some of the values of natural frequencies of the object can be obtained and their appropriate forms of free oscillations can be established.
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