Application of finite element model updating to a feed water pipeline of a nuclear power plant

Ari Vepsä (Corresponding Author), Heikki Haapaniemi, Pekka Luukkanen, Pekka Nurkkala, Arja Saarenheimo

    Research output: Contribution to journalArticleScientificpeer-review

    6 Citations (Scopus)

    Abstract

    This article is concerned with application of finite element model updating to a part of a secondary feed water pipeline of a VVER type nuclear power plant. A mathematical model of the pipeline was produced with finite element method. The pipeline was subjected to modal testing in three different conditions. The results of the modal testing were then compared with those predicted with the model. This comparison revealed discrepancies between these two sets of results. It is a commonly known fact that incorrect values of parameters in a model, among other things, do cause these discrepancies. In order to improve the correlation between the measured and the predicted results and hence improve the reliability of the model, the model was subjected to finite element model updating. In this updating process, incorrect values of parameters in a model are adjusted, so that a desired level of correlation between measured and predicted results is achieved. As a result, the correlation between the measured and the predicted results was improved. The bulk of the improvement was achieved by adjusting the values of those parameters that were associated with boundary conditions of the model.
    Original languageEnglish
    Pages (from-to)1849 - 1865
    Number of pages17
    JournalNuclear Engineering and Design
    Volume235
    Issue number17-19
    DOIs
    Publication statusPublished - 2005
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Water pipelines
    nuclear power plants
    nuclear power plant
    Nuclear power plants
    water
    Pipelines
    Testing
    mathematical models
    finite element method
    adjusting
    Boundary conditions
    boundary condition
    Mathematical models
    boundary conditions
    Finite element method
    causes

    Keywords

    • nuclear power plants
    • light water reactors
    • pipelines
    • structural dynamics
    • finite element analysis
    • finite element method
    • FEM
    • computer simulation

    Cite this

    Vepsä, Ari ; Haapaniemi, Heikki ; Luukkanen, Pekka ; Nurkkala, Pekka ; Saarenheimo, Arja. / Application of finite element model updating to a feed water pipeline of a nuclear power plant. In: Nuclear Engineering and Design. 2005 ; Vol. 235, No. 17-19. pp. 1849 - 1865.
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    title = "Application of finite element model updating to a feed water pipeline of a nuclear power plant",
    abstract = "This article is concerned with application of finite element model updating to a part of a secondary feed water pipeline of a VVER type nuclear power plant. A mathematical model of the pipeline was produced with finite element method. The pipeline was subjected to modal testing in three different conditions. The results of the modal testing were then compared with those predicted with the model. This comparison revealed discrepancies between these two sets of results. It is a commonly known fact that incorrect values of parameters in a model, among other things, do cause these discrepancies. In order to improve the correlation between the measured and the predicted results and hence improve the reliability of the model, the model was subjected to finite element model updating. In this updating process, incorrect values of parameters in a model are adjusted, so that a desired level of correlation between measured and predicted results is achieved. As a result, the correlation between the measured and the predicted results was improved. The bulk of the improvement was achieved by adjusting the values of those parameters that were associated with boundary conditions of the model.",
    keywords = "nuclear power plants, light water reactors, pipelines, structural dynamics, finite element analysis, finite element method, FEM, computer simulation",
    author = "Ari Veps{\"a} and Heikki Haapaniemi and Pekka Luukkanen and Pekka Nurkkala and Arja Saarenheimo",
    year = "2005",
    doi = "10.1016/j.nucengdes.2005.05.020",
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    Application of finite element model updating to a feed water pipeline of a nuclear power plant. / Vepsä, Ari (Corresponding Author); Haapaniemi, Heikki; Luukkanen, Pekka; Nurkkala, Pekka; Saarenheimo, Arja.

    In: Nuclear Engineering and Design, Vol. 235, No. 17-19, 2005, p. 1849 - 1865.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Application of finite element model updating to a feed water pipeline of a nuclear power plant

    AU - Vepsä, Ari

    AU - Haapaniemi, Heikki

    AU - Luukkanen, Pekka

    AU - Nurkkala, Pekka

    AU - Saarenheimo, Arja

    PY - 2005

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    N2 - This article is concerned with application of finite element model updating to a part of a secondary feed water pipeline of a VVER type nuclear power plant. A mathematical model of the pipeline was produced with finite element method. The pipeline was subjected to modal testing in three different conditions. The results of the modal testing were then compared with those predicted with the model. This comparison revealed discrepancies between these two sets of results. It is a commonly known fact that incorrect values of parameters in a model, among other things, do cause these discrepancies. In order to improve the correlation between the measured and the predicted results and hence improve the reliability of the model, the model was subjected to finite element model updating. In this updating process, incorrect values of parameters in a model are adjusted, so that a desired level of correlation between measured and predicted results is achieved. As a result, the correlation between the measured and the predicted results was improved. The bulk of the improvement was achieved by adjusting the values of those parameters that were associated with boundary conditions of the model.

    AB - This article is concerned with application of finite element model updating to a part of a secondary feed water pipeline of a VVER type nuclear power plant. A mathematical model of the pipeline was produced with finite element method. The pipeline was subjected to modal testing in three different conditions. The results of the modal testing were then compared with those predicted with the model. This comparison revealed discrepancies between these two sets of results. It is a commonly known fact that incorrect values of parameters in a model, among other things, do cause these discrepancies. In order to improve the correlation between the measured and the predicted results and hence improve the reliability of the model, the model was subjected to finite element model updating. In this updating process, incorrect values of parameters in a model are adjusted, so that a desired level of correlation between measured and predicted results is achieved. As a result, the correlation between the measured and the predicted results was improved. The bulk of the improvement was achieved by adjusting the values of those parameters that were associated with boundary conditions of the model.

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    KW - structural dynamics

    KW - finite element analysis

    KW - finite element method

    KW - FEM

    KW - computer simulation

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