The Amplitude Calculation Massive Foundations of Machines Taking into Account the Damage

Abstract:

The known methods of calculation of oscillation amplitudes of massive foundations of machines taking into account damage are analyzed in the article. It is established that the method set out in the building codes allows to determine the amplitudes of the foundation oscillations at any point of the foundation, approximately enough. This technique does not take into account the interaction with the soil of the deepened foundations, but takes into account only the physical and mechanical characteristics under the sole of the foundation. The authors propose a finite element method (FEM) calculation using the Plaxis 7 software package installed on a personal computer and a vibrometer. The result is the oscillation amplitude of the massive foundation. The presence of cracks and damage increases the magnitude of the oscillation amplitudes from the dynamic impact. If you make timely planned repairs to the foundations, the amplitude of the oscillations can be reduced.

• Periodical: Materials Science Forum (Volume 1006)
• Pages: 123-129
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1006.123
• Online since: August 2020
• Authors: Olena V. Mykhailovska*, Mykola L. Zotsenko
• Keywords: Amplitude, Dynamic, Finite Element Method, Massive Foundation, Oscillation

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