Predicting the runtime reliability of ITER Remote Handling maintenance equipment

J. Väyrynen; J. Mattila; M. Vilenius; M. Ali; P. Valkama; Mikko Siuko; L. Semeraro

doi:10.1016/j.fusengdes.2011.03.086

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 journal › Article › Scientific › peer-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 language	English
Pages (from-to)	2012-2015
Number of pages	4
Journal	Fusion Engineering and Design
Volume	86
Issue number	9-11
DOIs	https://doi.org/10.1016/j.fusengdes.2011.03.086
Publication status	Published - 2011
MoE publication type	A1 Journal article-refereed
Event	26th Symposium of Fusion Technology, SOFT-26 - Porto, Portugal Duration: 27 Sept 2010 → 1 Oct 2010 Conference number: 26

Keywords

ITER
Remote Handling
Reliability-Centered Maintenance
Probabilistic approach

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.fusengdes.2011.03.086

Cite this

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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",

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journal = "Fusion Engineering and Design",

issn = "0920-3796",

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note = "26th Symposium of Fusion Technology, SOFT-26, SOFT-26 ; Conference date: 27-09-2010 Through 01-10-2010",

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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.

N1 - Conference code: 26

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

SN - 0920-3796

VL - 86

SP - 2012

EP - 2015

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

IS - 9-11

T2 - 26th Symposium of Fusion Technology, SOFT-26

Y2 - 27 September 2010 through 1 October 2010

ER -

Predicting the runtime reliability of ITER Remote Handling maintenance equipment

Abstract

Keywords

UN SDGs

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