The effect of modal truncation and spatial distribution in load identification

Michael Vigsø, Rune Brincker, Christos T. Georgakis

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Load identification in civil engineering application is a growing topic. This study aims to analyze the effect of the load spatial distribution and whether or not the spatial distribution is foreseen prior to the inverse computations. If the dynamic characteristics are based on operational modal analysis there might be errors (uncertainties) associated with the estimated modal parameters and although the variations might appear as insignificant, they potentially pose an enormous effect during the inverse calculations. Depending on the number of sensors and distribution inherently there will be a limit to the number of modes which can be identified. The consequences from these limitations together with assumptions on the load spatial distribution will be the scope for this study.
Original languageEnglish
Title of host publicationProceedings of the 8th International Operational Modal Analysis Conference 2019
Number of pages5
PublisherIOMAC
Publication date2019
Pages553-557
ISBN (Print)9788409049004
Publication statusPublished - 2019
Event8th International Operational Modal Analysis Conference - Admiral Hotel, Copenhagen, Denmark
Duration: 12 May 201915 May 2019
Conference number: 8

Conference

Conference8th International Operational Modal Analysis Conference
Number8
LocationAdmiral Hotel
CountryDenmark
CityCopenhagen
Period12/05/201915/05/2019

Keywords

  • Load identification
  • Modal truncation
  • Spatial distribution

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