Classification of power spectra from data sets with high spectral variance for reliability analysis of dynamic structures

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Autoren

  • Marco Behrendt
  • Masaru Kitahara
  • Takeshi Kitahara
  • Liam Comerford
  • Michael Beer

Externe Organisationen

  • The University of Liverpool
  • Kanto Gakuin University
  • Tongji University
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Titel des SammelwerksProceedings of the 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022
Herausgeber/-innenMichael Beer, Enrico Zio, Kok-Kwang Phoon, Bilal M. Ayyub
Seiten323-328
Seitenumfang6
PublikationsstatusVeröffentlicht - 2022
Veranstaltung8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022 - Hannover, Deutschland
Dauer: 4 Sept. 20227 Sept. 2022

Abstract

The power spectral density (PSD) function is a frequently used method in the field of stochastic dynamics to determine the governing frequencies of environmental processes, such as earthquakes or wind loads. The PSD function allows buildings and structures to be examined for stability or is used when planning new buildings. Realistic load models may be generated from real data sets, which can be applied to simulation models. When working with real data records, however, it can be possible that these show a high variance and only few similarities. These differences can often only be detected in the frequency domain, while the data records show high similarities in the time domain. To counteract this problem, this paper proposes a classification approach that determines the spectral similarity of the individual data sets and assigns them to groups using a k-means algorithm. Based on the individual groups, load models can be generated and applied separately to the model to obtain more accurate simulation results. In order to demonstrate the benefits of this classification approach it is applied to numerical examples.

ASJC Scopus Sachgebiete

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Classification of power spectra from data sets with high spectral variance for reliability analysis of dynamic structures. / Behrendt, Marco; Kitahara, Masaru; Kitahara, Takeshi et al.
Proceedings of the 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022. Hrsg. / Michael Beer; Enrico Zio; Kok-Kwang Phoon; Bilal M. Ayyub. 2022. S. 323-328.

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Behrendt, M, Kitahara, M, Kitahara, T, Comerford, L & Beer, M 2022, Classification of power spectra from data sets with high spectral variance for reliability analysis of dynamic structures. in M Beer, E Zio, K-K Phoon & BM Ayyub (Hrsg.), Proceedings of the 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022. S. 323-328, 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022, Hannover, Deutschland, 4 Sept. 2022. https://doi.org/10.3850/978-981-18-5184-1_MS-11-160-cd
Behrendt, M., Kitahara, M., Kitahara, T., Comerford, L., & Beer, M. (2022). Classification of power spectra from data sets with high spectral variance for reliability analysis of dynamic structures. In M. Beer, E. Zio, K.-K. Phoon, & B. M. Ayyub (Hrsg.), Proceedings of the 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022 (S. 323-328) https://doi.org/10.3850/978-981-18-5184-1_MS-11-160-cd
Behrendt M, Kitahara M, Kitahara T, Comerford L, Beer M. Classification of power spectra from data sets with high spectral variance for reliability analysis of dynamic structures. in Beer M, Zio E, Phoon KK, Ayyub BM, Hrsg., Proceedings of the 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022. 2022. S. 323-328 doi: 10.3850/978-981-18-5184-1_MS-11-160-cd
Behrendt, Marco ; Kitahara, Masaru ; Kitahara, Takeshi et al. / Classification of power spectra from data sets with high spectral variance for reliability analysis of dynamic structures. Proceedings of the 8th International Symposium on Reliability Engineering and Risk Management, ISRERM 2022. Hrsg. / Michael Beer ; Enrico Zio ; Kok-Kwang Phoon ; Bilal M. Ayyub. 2022. S. 323-328
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title = "Classification of power spectra from data sets with high spectral variance for reliability analysis of dynamic structures",
abstract = "The power spectral density (PSD) function is a frequently used method in the field of stochastic dynamics to determine the governing frequencies of environmental processes, such as earthquakes or wind loads. The PSD function allows buildings and structures to be examined for stability or is used when planning new buildings. Realistic load models may be generated from real data sets, which can be applied to simulation models. When working with real data records, however, it can be possible that these show a high variance and only few similarities. These differences can often only be detected in the frequency domain, while the data records show high similarities in the time domain. To counteract this problem, this paper proposes a classification approach that determines the spectral similarity of the individual data sets and assigns them to groups using a k-means algorithm. Based on the individual groups, load models can be generated and applied separately to the model to obtain more accurate simulation results. In order to demonstrate the benefits of this classification approach it is applied to numerical examples.",
keywords = "Power spectrum estimation, Reliability assessment, Stochastic dynamics, Stochastic processes, Uncertainty quantification",
author = "Marco Behrendt and Masaru Kitahara and Takeshi Kitahara and Liam Comerford and Michael Beer",
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Download

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AU - Behrendt, Marco

AU - Kitahara, Masaru

AU - Kitahara, Takeshi

AU - Comerford, Liam

AU - Beer, Michael

N1 - Publisher Copyright: © 2022 ISRERM Organizers. Published by Research Publishing, Singapore.

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