In engineering practice, there is a great interest to determine vibro-acoustic characteristics of structures by
means of experimentally driven modal models. To make these modal models usable for the intended
application, they have to verify some constraints defined by the modal theory (e.g. FRFs reciprocity, real
mode shapes...). Rarely, modal parameter estimation methods consider these constraints and the obtained
models are typically altered in a subsequent step to satisfy the desired constraints. This may lead to suboptimal
results, as for instance evidenced by a degradation of the quality of the fit between the identified
modal model and the measurements. In this contribution, a new frequency-domain modal parameter
estimation method called MLMM to establish modal models of structural dynamic systems satisfying
some physically motivated constraints will be presented. The applicability of MLMM to estimate a
constrained modal model will be demonstrated using two real-life industrial applications.
Original languageEnglish
Title of host publicationProceeding of ISMA2016
Place of PublicationLeuven - Belgium
Number of pages15
Publication statusPublished - Sep 2016
Event2016 Leuven Conference on Noise and Vibration Engineering - College De Valk, Leuven, Belgium
Duration: 19 Sep 201621 Sep 2016


Conference2016 Leuven Conference on Noise and Vibration Engineering
Abbreviated titleISMA-2016
Internet address

ID: 30132917