Výsledky vyhledávání - "Szymon Greś"

Low-rank approximation of Hankel matrices in denoising applications for statistical damage diagnosis of wind turbine blades

Autor: Szymon Greś, Konstantinos E. Tatsis, Vasilis Dertimanis, Eleni Chatzi

Publikováno v: Mechanical Systems and Signal Processing, 197
Gres, S, Tatsis, K, Dertimanis, V & Chatzi, E 2023, ' Low-rank approximation of Hankel matrices in denoising applications for statistical damage diagnosis of wind turbine blades ', Mechanical Systems and Signal Processing, vol. 197, no. 110391 . https://doi.org/10.1016/j.ymssp.2023.110391

Model order selection is a fundamental task in subspace identification for estimation of modal parameters, uncertainty propagation and damage diagnosis. However, the true model order and the related low-rank structure of the dynamic system are genera

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::419f3062e6e910bd2e2a611c2d1f204a
https://hdl.handle.net/20.500.11850/612689

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Hankel matrix-based Mahalanobis distance for fault detection robust towards changes in process noise covariance

Autor: Michael Döhler, Laurent Mevel, Szymon Greś

Publikováno v: SYSID 2021-19th IFAC Symposium on System Identification
SYSID 2021-19th IFAC Symposium on System Identification, Jul 2021, Padua / Virtual, Italy. pp.1-6
SYSID 2021-19th IFAC Symposium on System Identification, Jul 2021, Padua / Virtual, Italy. pp.1-6, ⟨10.1016/j.ifacol.2021.08.337⟩

International audience; Statistical subspace-based change detection residuals have been developed to infer a change in the eigenstructure of linear systems. Their statistical properties have been properly evaluated in the case of a known reference an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8caa82823426d7cf6b2126deb876e88
https://doi.org/10.1016/j.ifacol.2021.08.337

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On the Probability of Localizing Damages Based on Mode Shape Changes

Autor: Alexander Mendler, Szymon Greś, Michael Döhler, Sylvia Keßler

Publikováno v: Lecture Notes in Civil Engineering ISBN: 9783031072536

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::44580cc3d6629359ad9ea565481bebc6
https://doi.org/10.1007/978-3-031-07254-3_23

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Uncertainty quantification of modal parameter estimates obtained from subspace identification: An experimental validation on a laboratory test of a large-scale wind turbine blade

Autor: Szymon Greś, Riccardo Riva, Cem Yeniceli Süleyman, Palle Andersen, Marcin Mieczyslaw Łuczak

Publikováno v: Gres, S, Riva, R, Yeniceli, S C, Andersen, P & Łuczak, M 2022, ' Uncertainty quantification of modal parameter estimates obtained from subspace identification: An experimental validation on a laboratory test of a large-scale wind turbine blade ', Engineering Structures, vol. 256 . https://doi.org/10.1016/j.engstruct.2022.114001

The uncertainty afflicting modal parameter estimates stems from e.g., the finite data length, unknown, or partly measured inputs and the choice of the identification algorithm. Quantification of the related errors with the statistical Delta method is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fcdd6c572df6848522b73fbd2283f12
https://pure.au.dk/portal/da/publications/uncertainty-quantification-of-modal-parameter-estimates-obtained-from-subspace-identification-an-experimental-validation-on-a-laboratory-test-of-a-largescale-wind-turbine-blade(3f80a8d4-5c83-4b09-a0f1-644b3f3923c2).html

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Uncertainty quantification of input matrices and transfer function in input/output subspace system identification

Autor: Niels-Jørgen Jacobsen, Laurent Mevel, Szymon Greś, Michael Döhler

Publikováno v: Mechanical Systems and Signal Processing
Mechanical Systems and Signal Processing, 2022, 167, pp.1-17. ⟨10.1016/j.ymssp.2021.108581⟩

The transfer function of a linear mechanical system can be defined in terms of the quadruplet of state-space matrices ( A , B , C , D ) that can be identified from input and output measurements with subspace-based system identification methods. The e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8769d4b8c3e745717959c02e425d3cb
https://inria.hal.science/hal-03607852

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Uncertainty quantification for the Modal Phase Collinearity of complex mode shapes

Autor: Szymon Greś, Michael Döhler, Laurent Mevel, Palle Andersen

Publikováno v: Mechanical Systems and Signal Processing
Mechanical Systems and Signal Processing, Elsevier, 2021, 152, pp.107436. ⟨10.1016/j.ymssp.2020.107436⟩
Gres, S, Döhler, M, Andersen, P & Mevel, L 2021, ' Uncertainty quantification for the Modal Phase Collinearity of complex mode shapes ', Mechanical Systems and Signal Processing, vol. 152, no. May, 107436 . https://doi.org/10.1016/j.ymssp.2020.107436
Mechanical Systems and Signal Processing, 2021, 152, pp.107436. ⟨10.1016/j.ymssp.2020.107436⟩

International audience; The Modal Phase Collinearity (MPC) is a modal indicator designed to decide whether the mode shape used in its computation is a real or complex-valued vector. Its estimate inherits the statistical properties of the correspondin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::995c25cac4578b66afce322193582922
https://hal.inria.fr/hal-03276212/file/mpc_paper_preprint.pdf

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Kalman filter-based subspace identification for operational modal analysis under unmeasured periodic excitation

Autor: Szymon Greś, Laurent Mevel, Michael Döhler, Palle Andersen

Publikováno v: Mechanical Systems and Signal Processing
Mechanical Systems and Signal Processing, Elsevier, 2021, 146, pp.106996. ⟨10.1016/j.ymssp.2020.106996⟩
Greś, S, Döhler, M, Andersen, P & Mevel, L 2021, ' Kalman filter-based subspace identification for operational modal analysis under unmeasured periodic excitation ', Mechanical Systems and Signal Processing, vol. 146, 106996 . https://doi.org/10.1016/j.ymssp.2020.106996
Mechanical Systems and Signal Processing, 2021, 146, pp.106996. ⟨10.1016/j.ymssp.2020.106996⟩

International audience; The modes of linear time invariant mechanical systems can be estimated from output-only vibration measurements under ambient excitation conditions with subspace-based system identification methods. In the presence of additiona

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cb75a9ddb00feacc06f8e75550ba082
https://hal.inria.fr/hal-02613501

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Variance computation for system matrices and transfer function from input/output subspace system identification

Autor: Laurent Mevel, Michael Döhler, Szymon Greś

Publikováno v: IFAC 2020, 21st International Federation of Automatic Control World Congress
IFAC 2020-21st International Federation of Automatic Control World Congress
IFAC 2020-21st International Federation of Automatic Control World Congress, Jul 2020, Berlin, Germany. ⟨10.1016/j.ifacol.2020.12.861⟩

International audience; The transfer function of a linear system is defined in terms of the quadruplet of matrices (A, B, C, D) that can be identified from input and output measurements. Similarly these matrices determine the state space evolution fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49a807b8fa4842fd9aca115844c4f7c5
https://hal.inria.fr/hal-02902996

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Statistical model-based optimization for damage extent quantification

Autor: Szymon Greś, Laurent Mevel, Michael Döhler

Publikováno v: Mechanical Systems and Signal Processing
Mechanical Systems and Signal Processing, Elsevier, 2021, 160, pp.1-19. ⟨10.1016/j.ymssp.2021.107894⟩
Mechanical Systems and Signal Processing, 2021, 160, pp.107894. ⟨10.1016/j.ymssp.2021.107894⟩

International audience; Damage localization and quantification constitute different aspects of structural damage diagnosis, which are of particular interest in the Structural Health Monitoring field. Therein, a classical solution is model updating, w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95b1ecd7815b251a35cb38a931f8556d
https://doi.org/10.1016/j.ymssp.2021.107894

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Uncertainty quantification of the Modal Assurance Criterion in operational modal analysis

Autor: Michael Döhler, Laurent Mevel, Szymon Greś

Publikováno v: Greś, S, Döhler, M & Mevel, L 2021, ' Uncertainty quantification of the Modal Assurance Criterion in operational modal analysis ', Mechanical Systems and Signal Processing, vol. 152, 107457 . https://doi.org/10.1016/j.ymssp.2020.107457
Mechanical Systems and Signal Processing
Mechanical Systems and Signal Processing, Elsevier, 2021, 152, pp.107457. ⟨10.1016/j.ymssp.2020.107457⟩
Mechanical Systems and Signal Processing, 2021, 152, pp.107457. ⟨10.1016/j.ymssp.2020.107457⟩

The Modal Assurance Criterion (MAC) is a modal indicator designed to decide whether the mode shapes used in its computation are corresponding to the same mode. During structural monitoring, it can be applied to evaluate changes in the mode shapes. Wh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf11c3302a854b7bb4bfa7b55d03c72d
https://doi.org/10.1016/j.ymssp.2020.107457

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