IDENTIFICATION OF MODAL PARAMETERS OF VIBRATING STRUCTURES WITH UNKNOWN ORSTOCHASTIC EXCITATION

Authors

  • Roberto Amaro Baldeón Universidade Estadual de Mato Grosso
  • Paulo Gardel Kurka Universidade Campinas

DOI:

https://doi.org/10.15381/idata.v8i2.6186

Keywords:

VARMA, modal analysis, companion matrix, multivariate, estimation.

Abstract

The Vector Autoregressive Moving Average (VARMA) Model is used to identify dynamical characteristics of a structural system in the presence of noise. In order to estimate the parameters of the VARMA Model, the Spliid’s fast algorithm is used. To determine the modal parameters the companion matrix is built with the autoregressive part of the VARMA Model. The performance of this method here discussed is presented by means of simulations, using three degrees of freedom mass-dampingstiffness vibrating system.

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Author Biographies

  • Roberto Amaro Baldeón, Universidade Estadual de Mato Grosso

    Magíster en Ingeniería Industrial. Profesor del Departamento de Matemática, Universidade Estadual de Mato Grosso (Brasil).

  • Paulo Gardel Kurka, Universidade Campinas

    Profesor del Departamento de Projeto Mecânico Pós- Graduação, Faculdade de Engenharia Mecânica, Universidade Campinas (Brasil).

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Published

2005-12-30

Issue

Vol. 8 No. 2 (2005)

Section

Sistemas e Informática

License

Copyright (c) 2005 Roberto Amaro Baldeón, Paulo Gardel Kurka

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

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b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the INDUSTRIAL DATA.

c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating the source of publication (the originator of the work, journal, volume, number and date).

How to Cite

IDENTIFICATION OF MODAL PARAMETERS OF VIBRATING STRUCTURES WITH UNKNOWN ORSTOCHASTIC EXCITATION. (2005). Industrial Data, 8(2), 052-055. https://doi.org/10.15381/idata.v8i2.6186