Finite element model updating using Lagrange interpolation

• Autorzy: Asma F.

Identyfikatory

DOI

10.2478/mme-2019-0030

• Języki publikacji: EN

Abstrakty

EN

In this paper, an iterative finite element model updating method in structural dynamics is proposed. This uses information matrices and element connectivity matrices to reconstruct the corrected model by reproducing the frequency response at measured degrees of freedom. Indicators have been proposed to quantify the mismodelling errors based on a development in Lagrange matrix interpolation. When applied on simulated truss structures, the model gives satisfactory results by detecting and quantifying the defaults of the initial model.

Słowa kluczowe

EN

model updating; Lagrange interpolation; information matrices; frequency domain

PL

strojenie modelu; interpolacja Lagrange'a; macierze informacji; dziedzina częstotliwości

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 23, nr 1
• Strony: 228--232
• Opis fizyczny: Bibliogr. 23 poz., 1 rys., wykr.

Twórcy

autor

Asma F.

• Laboratory of Elaboration and Characterization of Materials and Modelling (LEC2M), Mouloud Mammeri University of Tizi-Ouzou, BP 17 RP 15000, Algeria

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).