Predicting the runtime reliability of ITER Remote Handling maintenance equipment

J. Väyrynen (Corresponding Author), J. Mattila, M. Vilenius, M. Ali, P. Valkama, Mikko Siuko, L. Semeraro

    Research output: Contribution to journalArticleScientificpeer-review

    4 Citations (Scopus)

    Abstract

    High system reliability is of utmost importance during the ITER Remote Handling (RH) maintenance operations, as the operational environment is heavily irradiated and populated by fragile and very expensive reactor components and diagnostics equipment. The radiation prevents using live personnel for recovery purposes in the case of equipment malfunction and the fragile environment prevents using brute force to recover malfunctioning equipment. Due to these facts, the concept of Reliability-Centered Maintenance (RCM) for the RH maintenance equipment is exceptionally valid. To improve the RCM concept, probabilistic methods based on the stochastic simulation and reliability mathematics are studied to add a degree of failure prediction. This paper describes the project to improve the reliability of remotely operated Water Hydraulic Manipulator (WHMAN) utilising probabilistic methods. This work was done on an FMECA (Failure Methods, Effects and Criticality Analysis) performed on the WHMAN prior to starting this project. Furthermore, additional considerations regarding maintenance regime derived from the results of this project are presented.
    Original languageEnglish
    Pages (from-to)2012-2015
    Number of pages4
    JournalFusion Engineering and Design
    Volume86
    Issue number9-11
    DOIs
    Publication statusPublished - 2011
    MoE publication typeA1 Journal article-refereed
    Event26th Symposium of Fusion Technology, SOFT-26 - Porto, Portugal
    Duration: 27 Sep 20101 Oct 2010
    Conference number: 26

    Fingerprint

    Manipulators
    Hydraulics
    Water
    Personnel
    Radiation
    Recovery

    Keywords

    • ITER
    • Remote Handling
    • Reliability-Centered Maintenance
    • Probabilistic approach

    Cite this

    Väyrynen, J., Mattila, J., Vilenius, M., Ali, M., Valkama, P., Siuko, M., & Semeraro, L. (2011). Predicting the runtime reliability of ITER Remote Handling maintenance equipment. Fusion Engineering and Design, 86(9-11), 2012-2015. https://doi.org/10.1016/j.fusengdes.2011.03.086
    Väyrynen, J. ; Mattila, J. ; Vilenius, M. ; Ali, M. ; Valkama, P. ; Siuko, Mikko ; Semeraro, L. / Predicting the runtime reliability of ITER Remote Handling maintenance equipment. In: Fusion Engineering and Design. 2011 ; Vol. 86, No. 9-11. pp. 2012-2015.
    @article{e811e626c00246d3b34f93cbaece7984,
    title = "Predicting the runtime reliability of ITER Remote Handling maintenance equipment",
    abstract = "High system reliability is of utmost importance during the ITER Remote Handling (RH) maintenance operations, as the operational environment is heavily irradiated and populated by fragile and very expensive reactor components and diagnostics equipment. The radiation prevents using live personnel for recovery purposes in the case of equipment malfunction and the fragile environment prevents using brute force to recover malfunctioning equipment. Due to these facts, the concept of Reliability-Centered Maintenance (RCM) for the RH maintenance equipment is exceptionally valid. To improve the RCM concept, probabilistic methods based on the stochastic simulation and reliability mathematics are studied to add a degree of failure prediction. This paper describes the project to improve the reliability of remotely operated Water Hydraulic Manipulator (WHMAN) utilising probabilistic methods. This work was done on an FMECA (Failure Methods, Effects and Criticality Analysis) performed on the WHMAN prior to starting this project. Furthermore, additional considerations regarding maintenance regime derived from the results of this project are presented.",
    keywords = "ITER, Remote Handling, Reliability-Centered Maintenance, Probabilistic approach",
    author = "J. V{\"a}yrynen and J. Mattila and M. Vilenius and M. Ali and P. Valkama and Mikko Siuko and L. Semeraro",
    year = "2011",
    doi = "10.1016/j.fusengdes.2011.03.086",
    language = "English",
    volume = "86",
    pages = "2012--2015",
    journal = "Fusion Engineering and Design",
    issn = "0920-3796",
    publisher = "Elsevier",
    number = "9-11",

    }

    Väyrynen, J, Mattila, J, Vilenius, M, Ali, M, Valkama, P, Siuko, M & Semeraro, L 2011, 'Predicting the runtime reliability of ITER Remote Handling maintenance equipment', Fusion Engineering and Design, vol. 86, no. 9-11, pp. 2012-2015. https://doi.org/10.1016/j.fusengdes.2011.03.086

    Predicting the runtime reliability of ITER Remote Handling maintenance equipment. / Väyrynen, J. (Corresponding Author); Mattila, J.; Vilenius, M.; Ali, M.; Valkama, P.; Siuko, Mikko; Semeraro, L.

    In: Fusion Engineering and Design, Vol. 86, No. 9-11, 2011, p. 2012-2015.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Predicting the runtime reliability of ITER Remote Handling maintenance equipment

    AU - Väyrynen, J.

    AU - Mattila, J.

    AU - Vilenius, M.

    AU - Ali, M.

    AU - Valkama, P.

    AU - Siuko, Mikko

    AU - Semeraro, L.

    PY - 2011

    Y1 - 2011

    N2 - High system reliability is of utmost importance during the ITER Remote Handling (RH) maintenance operations, as the operational environment is heavily irradiated and populated by fragile and very expensive reactor components and diagnostics equipment. The radiation prevents using live personnel for recovery purposes in the case of equipment malfunction and the fragile environment prevents using brute force to recover malfunctioning equipment. Due to these facts, the concept of Reliability-Centered Maintenance (RCM) for the RH maintenance equipment is exceptionally valid. To improve the RCM concept, probabilistic methods based on the stochastic simulation and reliability mathematics are studied to add a degree of failure prediction. This paper describes the project to improve the reliability of remotely operated Water Hydraulic Manipulator (WHMAN) utilising probabilistic methods. This work was done on an FMECA (Failure Methods, Effects and Criticality Analysis) performed on the WHMAN prior to starting this project. Furthermore, additional considerations regarding maintenance regime derived from the results of this project are presented.

    AB - High system reliability is of utmost importance during the ITER Remote Handling (RH) maintenance operations, as the operational environment is heavily irradiated and populated by fragile and very expensive reactor components and diagnostics equipment. The radiation prevents using live personnel for recovery purposes in the case of equipment malfunction and the fragile environment prevents using brute force to recover malfunctioning equipment. Due to these facts, the concept of Reliability-Centered Maintenance (RCM) for the RH maintenance equipment is exceptionally valid. To improve the RCM concept, probabilistic methods based on the stochastic simulation and reliability mathematics are studied to add a degree of failure prediction. This paper describes the project to improve the reliability of remotely operated Water Hydraulic Manipulator (WHMAN) utilising probabilistic methods. This work was done on an FMECA (Failure Methods, Effects and Criticality Analysis) performed on the WHMAN prior to starting this project. Furthermore, additional considerations regarding maintenance regime derived from the results of this project are presented.

    KW - ITER

    KW - Remote Handling

    KW - Reliability-Centered Maintenance

    KW - Probabilistic approach

    U2 - 10.1016/j.fusengdes.2011.03.086

    DO - 10.1016/j.fusengdes.2011.03.086

    M3 - Article

    VL - 86

    SP - 2012

    EP - 2015

    JO - Fusion Engineering and Design

    JF - Fusion Engineering and Design

    SN - 0920-3796

    IS - 9-11

    ER -