The Effect of The Symmetrical Elastic Nonlinearity on Structural Vibrations Transmitted by Dynamic Equipment on The Construction Envelope

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Polidor BRATU
George Lucian NICOLAE
Samir IACOVESCU
Dan ION
Andrei COTOBAN

Abstract

The results of the research carried out for elastic systems with symmetrical nonlinearity have been systematized in this article so that they can be disseminated for real models of dynamic equipment in construction endowment. Thus, the ventilation - conditioning systems, water pumping systems, main and interior piping systems from nuclear power plants, platforms with optoelectronic equipment are supported on elastic devices that can have a non-linear behavior.


 In this case, it is highlighted that under certain functional and constructive conditions it is possible the occurrence of subharmonic vibrations of order 1/3 of the excitation pulsation. This leads to the generation of structural noise with consequences for the people inside it.

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How to Cite
[1]
BRATU, P., NICOLAE, G.L., IACOVESCU, S., ION, D. and COTOBAN, A. 2022. The Effect of The Symmetrical Elastic Nonlinearity on Structural Vibrations Transmitted by Dynamic Equipment on The Construction Envelope. Romanian Journal of Acoustics and Vibration. 19, 1 (Mar. 2022), 25-28.
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