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Incorporating real modes and reciprocity constraints in the iterative MLMM modal parameter estimation method. / El-kafafy, Mahmoud; Peeters, Bart; Guillaume, Patrick.

Proceeding of ISMA2016 . Leuven - Belgium, 2016. p. 2933-2946.

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El-kafafy, M, Peeters, B & Guillaume, P 2016, Incorporating real modes and reciprocity constraints in the iterative MLMM modal parameter estimation method. in Proceeding of ISMA2016 . Leuven - Belgium, pp. 2933-2946, 2016 Leuven Conference on Noise and Vibration Engineering, Leuven, Belgium, 19/09/16.

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BibTeX

@inproceedings{daa2621e8aee4b2692572a3cab5ba733,
title = "Incorporating real modes and reciprocity constraints in the iterative MLMM modal parameter estimation method",
abstract = "In engineering practice, there is a great interest to determine vibro-acoustic characteristics of structures bymeans of experimentally driven modal models. To make these modal models usable for the intendedapplication, they have to verify some constraints defined by the modal theory (e.g. FRFs reciprocity, realmode shapes...). Rarely, modal parameter estimation methods consider these constraints and the obtainedmodels are typically altered in a subsequent step to satisfy the desired constraints. This may lead to suboptimalresults, as for instance evidenced by a degradation of the quality of the fit between the identifiedmodal model and the measurements. In this contribution, a new frequency-domain modal parameterestimation method called MLMM to establish modal models of structural dynamic systems satisfyingsome physically motivated constraints will be presented. The applicability of MLMM to estimate aconstrained modal model will be demonstrated using two real-life industrial applications.",
author = "Mahmoud El-kafafy and Bart Peeters and Patrick Guillaume",
year = "2016",
month = "9",
language = "English",
pages = "2933--2946",
booktitle = "Proceeding of ISMA2016",

}

RIS

TY - GEN

T1 - Incorporating real modes and reciprocity constraints in the iterative MLMM modal parameter estimation method

AU - El-kafafy, Mahmoud

AU - Peeters, Bart

AU - Guillaume, Patrick

PY - 2016/9

Y1 - 2016/9

N2 - In engineering practice, there is a great interest to determine vibro-acoustic characteristics of structures bymeans of experimentally driven modal models. To make these modal models usable for the intendedapplication, they have to verify some constraints defined by the modal theory (e.g. FRFs reciprocity, realmode shapes...). Rarely, modal parameter estimation methods consider these constraints and the obtainedmodels are typically altered in a subsequent step to satisfy the desired constraints. This may lead to suboptimalresults, as for instance evidenced by a degradation of the quality of the fit between the identifiedmodal model and the measurements. In this contribution, a new frequency-domain modal parameterestimation method called MLMM to establish modal models of structural dynamic systems satisfyingsome physically motivated constraints will be presented. The applicability of MLMM to estimate aconstrained modal model will be demonstrated using two real-life industrial applications.

AB - In engineering practice, there is a great interest to determine vibro-acoustic characteristics of structures bymeans of experimentally driven modal models. To make these modal models usable for the intendedapplication, they have to verify some constraints defined by the modal theory (e.g. FRFs reciprocity, realmode shapes...). Rarely, modal parameter estimation methods consider these constraints and the obtainedmodels are typically altered in a subsequent step to satisfy the desired constraints. This may lead to suboptimalresults, as for instance evidenced by a degradation of the quality of the fit between the identifiedmodal model and the measurements. In this contribution, a new frequency-domain modal parameterestimation method called MLMM to establish modal models of structural dynamic systems satisfyingsome physically motivated constraints will be presented. The applicability of MLMM to estimate aconstrained modal model will be demonstrated using two real-life industrial applications.

M3 - Conference paper

SP - 2933

EP - 2946

BT - Proceeding of ISMA2016

CY - Leuven - Belgium

ER -

ID: 30132917