Vibrations are classified among the major problems for engineering structures. Anti-vibration isolators are used to absorb vibration energy and minimise transmitted force which can cause damage. The isolator is modelled as a parallel combination of stiffness and damping elements. The main purpose of the model is to enable designers to predict the dynamic response of systems under different structural excitations and boundary conditions. A nonlinear identification method, discussed in this paper, aims to provide a tool for engineers to extract information about the nonlinear dynamic behaviour using measured data from experiments. The proposed method is demonstrated and validated with numerical simulations. Thus, this technique is applied to determine the nonlinear parameters of a commercial metal mesh isolator. Nonlinear stiffness and nonlinear damping can decrease with the increase in the amplitude of the base excitation. The softening behaviour of the mesh isolator is clearly visible.

Accepted:

Published online:

Fares Mezghani ^{1, 2};
Alfonso Fernández Del Rincón ^{2};
Mohamed Amine Ben Souf ^{1};
Pablo García Fernandez ^{2};
Fakher Chaari ^{1};
Fernando Viadero Rueda ^{2};
Mohamed Haddar ^{1}

@article{CRMECA_2017__345_6_386_0, author = {Fares Mezghani and Alfonso Fern\'andez Del Rinc\'on and Mohamed Amine Ben Souf and Pablo Garc{\'\i}a Fernandez and Fakher Chaari and Fernando Viadero Rueda and Mohamed Haddar}, title = {Identification of nonlinear anti-vibration isolator properties}, journal = {Comptes Rendus. M\'ecanique}, pages = {386--398}, publisher = {Elsevier}, volume = {345}, number = {6}, year = {2017}, doi = {10.1016/j.crme.2017.03.004}, language = {en}, }

TY - JOUR AU - Fares Mezghani AU - Alfonso Fernández Del Rincón AU - Mohamed Amine Ben Souf AU - Pablo García Fernandez AU - Fakher Chaari AU - Fernando Viadero Rueda AU - Mohamed Haddar TI - Identification of nonlinear anti-vibration isolator properties JO - Comptes Rendus. Mécanique PY - 2017 SP - 386 EP - 398 VL - 345 IS - 6 PB - Elsevier DO - 10.1016/j.crme.2017.03.004 LA - en ID - CRMECA_2017__345_6_386_0 ER -

%0 Journal Article %A Fares Mezghani %A Alfonso Fernández Del Rincón %A Mohamed Amine Ben Souf %A Pablo García Fernandez %A Fakher Chaari %A Fernando Viadero Rueda %A Mohamed Haddar %T Identification of nonlinear anti-vibration isolator properties %J Comptes Rendus. Mécanique %D 2017 %P 386-398 %V 345 %N 6 %I Elsevier %R 10.1016/j.crme.2017.03.004 %G en %F CRMECA_2017__345_6_386_0

Fares Mezghani; Alfonso Fernández Del Rincón; Mohamed Amine Ben Souf; Pablo García Fernandez; Fakher Chaari; Fernando Viadero Rueda; Mohamed Haddar. Identification of nonlinear anti-vibration isolator properties. Comptes Rendus. Mécanique, Volume 345 (2017) no. 6, pp. 386-398. doi : 10.1016/j.crme.2017.03.004. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2017.03.004/

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