Abstract
A method for low-frequency control of the stress state of structures is proposed, based on an analysis of the parameters of the surface wave field created by the impact. To process the recorded signal, a special method is used, based on the use of optimal orthogonal decompositions of the signal in the base, adaptively tuned to the training sample. A series of computational experiments on simulation of dynamic processes in a prestressed medium was carried out. Studies have shown a high degree of informativeness of the method to various types of initial stress state in the medium and also a high sensitivity to a change in the value of the initial deformation.
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Acknowledgements
This study was supported by the Russian Science Foundation (grant number 14-19-01676).
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Belyankova, T.I., Bocharova, O.V., Sedov, A.V., Kalinchuk, V.V. (2019). On the Method of Low-Frequency Monitoring of the Initial Stress State of a Body. In: Matveenko, V., Krommer, M., Belyaev, A., Irschik, H. (eds) Dynamics and Control of Advanced Structures and Machines. Springer, Cham. https://doi.org/10.1007/978-3-319-90884-7_4
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