In this paper, a new method for identifying the dynamical parameters of local constraining supports such as mass, stiffness, and damping was developed through combining the measured frequency transfer functions and structural modification techniques. Since measurement noise often leads to erroneous identifications, regularization techniques have been implemented to reduce noise amplification in the inverse problem. The developed technique has been validated by numerical tests on a multi-supported flexible structure, which can be seen as an idealized electricity generator rotor shaft. The results are satisfactory for noise-free data as well as under realistic noise levels. The sensitivity of the identified support features to noise levels is asserted through a parametric study
Accepted:
Published online:
Ahmad Baklouti 1, 2; José Antunes 1; Vincent Debut 1; Tahar Fakhkakh 2; Mohamed Haddar 2
@article{CRMECA_2017__345_4_239_0,
author = {Ahmad Baklouti and Jos\'e Antunes and Vincent Debut and Tahar Fakhkakh and Mohamed Haddar},
title = {A method for the identification of dynamic constraint parameters in multi-supported flexible structures},
journal = {Comptes Rendus. M\'ecanique},
pages = {239--247},
publisher = {Elsevier},
volume = {345},
number = {4},
year = {2017},
doi = {10.1016/j.crme.2017.02.002},
language = {en},
}
TY - JOUR AU - Ahmad Baklouti AU - José Antunes AU - Vincent Debut AU - Tahar Fakhkakh AU - Mohamed Haddar TI - A method for the identification of dynamic constraint parameters in multi-supported flexible structures JO - Comptes Rendus. Mécanique PY - 2017 SP - 239 EP - 247 VL - 345 IS - 4 PB - Elsevier DO - 10.1016/j.crme.2017.02.002 LA - en ID - CRMECA_2017__345_4_239_0 ER -
%0 Journal Article %A Ahmad Baklouti %A José Antunes %A Vincent Debut %A Tahar Fakhkakh %A Mohamed Haddar %T A method for the identification of dynamic constraint parameters in multi-supported flexible structures %J Comptes Rendus. Mécanique %D 2017 %P 239-247 %V 345 %N 4 %I Elsevier %R 10.1016/j.crme.2017.02.002 %G en %F CRMECA_2017__345_4_239_0
Ahmad Baklouti; José Antunes; Vincent Debut; Tahar Fakhkakh; Mohamed Haddar. A method for the identification of dynamic constraint parameters in multi-supported flexible structures. Comptes Rendus. Mécanique, Volume 345 (2017) no. 4, pp. 239-247. doi : 10.1016/j.crme.2017.02.002. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2017.02.002/
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