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Akersten, Per-Anders
Publications (10 of 15) Show all publications
Akersten, P.-A., Klefsjö, B. & Bergman, B. (2010). Graphical techniques for analysis of data from repairable systems. In: Calyampudi Radhakrishna Rao; Paruchuri R. Krishnaiah; N. Balakrishnan (Ed.), Handbook of statistics vol. 20: Advances in reliability (pp. 469-484). Paper presented at . Amsterdam
Open this publication in new window or tab >>Graphical techniques for analysis of data from repairable systems
2010 (English)In: Handbook of statistics vol. 20: Advances in reliability, Amsterdam, 2010, p. 469-484Chapter in book (Other academic)
Place, publisher, year, edition, pages
Amsterdam: , 2010
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-20152 (URN)265a54a0-7e03-11df-ab16-000ea68e967b (Local ID)0-444-50078-2 (ISBN)265a54a0-7e03-11df-ab16-000ea68e967b (Archive number)265a54a0-7e03-11df-ab16-000ea68e967b (OAI)
Note

Godkänd; 2001; 20100622 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-03-13Bibliographically approved
Kumar, U. & Akersten, P.-A. (2008). Availability and maintainability (ed.). In: (Ed.), E. Melnik; B. Everitt (Ed.), Encyclopedia of Quantitative Risk Analysis and Assessment: (pp. 77-84). Paper presented at . Chichester: John Wiley & Sons
Open this publication in new window or tab >>Availability and maintainability
2008 (English)In: Encyclopedia of Quantitative Risk Analysis and Assessment, Chichester: John Wiley & Sons, 2008, p. 77-84Chapter in book (Other academic)
Place, publisher, year, edition, pages
Chichester: John Wiley & Sons, 2008
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-20930 (URN)952d5810-c779-11dd-941d-000ea68e967b (Local ID)978-0-470-03549-8 (ISBN)952d5810-c779-11dd-941d-000ea68e967b (Archive number)952d5810-c779-11dd-941d-000ea68e967b (OAI)
Note
Godkänd; 2008; 20081211 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Ghodrati, B., Akersten, P.-A. & Kumar, U. (2007). Spare parts estimation and risk assessment conducted at Choghart iron ore mine: a case study (ed.). Paper presented at . Journal of Quality in Maintenance Engineering, 13(4), 353-363
Open this publication in new window or tab >>Spare parts estimation and risk assessment conducted at Choghart iron ore mine: a case study
2007 (English)In: Journal of Quality in Maintenance Engineering, ISSN 1355-2511, E-ISSN 1758-7832, Vol. 13, no 4, p. 353-363Article in journal (Refereed) Published
Abstract [en]

Purpose - Spare parts needs are dependent on the characteristics of the product in question, e.g. its reliability and maintainability, and the characteristics of the environment in which the product is going to be used (e.g. the temperature, humidity, and the user/operator's skills and capabilities), which constitute covariates. The covariates have a significant influence on the system reliability characteristics and consequently on the number of required spare parts. The main objective of this research study is to evaluate the associated risks (i.e. risk of shortage of spare parts) in estimation of the required number of spare parts due to not considering the characteristics of system operating environment. Design/methodology/approach - An event tree is a graphical logic model that identifies and quantifies possible outcomes following an initiating event (non-considering system operating environment in this case) in spare parts planning. In the present research a risk analysis is performed through a new and non-standard event tree analysis. It used an event tree analysis in which the states of organization and managerial decisions took place in risk analysis. Findings - In the present study a modified form of event tree analysis was introduced and implemented. In the new version the undesired states were used instead of barriers in combination with events and consequents changes as a safety function in event tree analysis. The output of the event tree analysis shows that there is a considerable operational risk due to losses (production and economical) associated with the non-consideration of the machine working environment. Practical implications - In the estimation of the accurate amount of support and spare parts needed for any industrial system/machine, it is strongly recommended to take the product operating environment into account. This can be proved by the event tree risk analysis method used in a modified and non-standard form in the present research. The results of risk analysis can help managers in making accurate decisions for product support and spare part needs in the future. Originality/value - Modified event tree analysis is a new approach suggested for visualizing the risk associated with non-considering of system operating environment in required support/spare parts estimation. Visualization of risk in graphics can facilitate correct decision making in spare parts planning.

National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-6782 (URN)10.1108/13552510710829452 (DOI)2-s2.0-34848890326 (Scopus ID)513478e0-726c-11dc-86ab-000ea68e967b (Local ID)513478e0-726c-11dc-86ab-000ea68e967b (Archive number)513478e0-726c-11dc-86ab-000ea68e967b (OAI)
Note
Validerad; 2007; 20071004 (behzad)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Akersten, P.-A. (2006). Condition monitoring and risk & relability analysis (ed.). In: (Ed.), Uday Kumar (Ed.), Condition Monitoring and Diagnostic Engineering Management: COMADEM 2006 ; proceedings of the 19th international congress, Luleºa, Sweden, 12 - 15 June 2006. Paper presented at International Congress on Condition Monitoring and Diagnostic Engineering Management : 12/06/2006 - 15/06/2006 (pp. 555-561). Luleå: Luleå tekniska universitet
Open this publication in new window or tab >>Condition monitoring and risk & relability analysis
2006 (English)In: Condition Monitoring and Diagnostic Engineering Management: COMADEM 2006 ; proceedings of the 19th international congress, Luleºa, Sweden, 12 - 15 June 2006 / [ed] Uday Kumar, Luleå: Luleå tekniska universitet, 2006, p. 555-561Conference paper, Published paper (Refereed)
Abstract [en]

Qualitative and semi-quantitative reliability and risk analyses are usually performed, using inductive analysis approaches, e.g. FMEA/FMECA (Failure Mode and Effects [Criticality] Analysis), PHA (Preliminary Hazard Analysis) or HAZOP (Hazard and Operability Study). After the identification of possible failure modes or hazards, their possible effects at different system levels are estimated. In several cases the possible effects at higher system levels are very severe, indicating that the system under study is highly unreliable or hazardous. This conclusion, however, can be modified by taking into account the effect of current controls or countermeasures that can reduce the likelihood of an adverse effect or reduce the severity. Condition monitoring provides a useful risk control approach, primarily aiming at reducing the likelihood of an adverse effect. In this paper this risk control approach is described in some more detail and a proposed methodology is described. This methodology combines FMEA and ETA (Event Tree Analysis), with special attention taken to the utilization of Condition Monitoring.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2006
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-38896 (URN)d7372900-9e6a-11db-8975-000ea68e967b (Local ID)978-91-631-8806-0 (ISBN)d7372900-9e6a-11db-8975-000ea68e967b (Archive number)d7372900-9e6a-11db-8975-000ea68e967b (OAI)
Conference
International Congress on Condition Monitoring and Diagnostic Engineering Management : 12/06/2006 - 15/06/2006
Note

Godkänd; 2006; 20070103 (ysko)

Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2018-03-13Bibliographically approved
Akersten, P.-A. (2006). E-maintenance and vulnerability (ed.). In: (Ed.), Joseph Mathew; Lin Ma; Andy Tan; Deryk Anderson (Ed.), Engineering Asset Management: Proceedings of the First World Congress on Engineering Asset Management (WCEAM). Paper presented at World Congress on Engineering Asset Management : 11/07/2006 - 14/07/2006 (pp. 120-124). London: Encyclopedia of Global Archaeology/Springer Verlag
Open this publication in new window or tab >>E-maintenance and vulnerability
2006 (English)In: Engineering Asset Management: Proceedings of the First World Congress on Engineering Asset Management (WCEAM) / [ed] Joseph Mathew; Lin Ma; Andy Tan; Deryk Anderson, London: Encyclopedia of Global Archaeology/Springer Verlag, 2006, p. 120-124Conference paper, Published paper (Refereed)
Abstract [en]

Teleservice, utilizing modern information processing and communication tools, is by now a well-known way of supporting a product and we have seen the emergence of e-manufacturing and related types of e-service, in particular e-maintenance. In discussions of the present and future of emanufacturing and e-maintenance systems are among other things risks and vulnerabilities related to utilization of e-services identified as an important area for further research. In this paper the concepts of emaintenance and vulnerability are briefly described. The vulnerability of the e-maintenance system and its consequences for the managed assets are discussed to some extent. From different risk analysis approaches, e.g. related to computer and network security, several methodologies and tools for the management of vulnerability can be identified and an analysis methodology is proposed. The paper represents the view of a risk analyst and reliability engineer.

Place, publisher, year, edition, pages
London: Encyclopedia of Global Archaeology/Springer Verlag, 2006
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-38069 (URN)10.1007/978-1-84628-814-2_13 (DOI)c5641ea0-c34e-11db-9ea3-000ea68e967b (Local ID)1846285836 (ISBN)c5641ea0-c34e-11db-9ea3-000ea68e967b (Archive number)c5641ea0-c34e-11db-9ea3-000ea68e967b (OAI)
Conference
World Congress on Engineering Asset Management : 11/07/2006 - 14/07/2006
Note

Godkänd; 2006; Bibliografisk uppgift: CD-ROM; 20070206 (ysko)

Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2018-03-13Bibliographically approved
Akersten, P.-A. (2006). Maintenance-related IEC dependability standards (ed.). In: (Ed.), Engineering Asset Management: Proceedings of the First World Congress on Engineering Asset Management (WCEAM). Paper presented at World Congress on Engineering Asset Management : 11/07/2006 - 14/07/2006 (pp. 115-119). London: Encyclopedia of Global Archaeology/Springer Verlag
Open this publication in new window or tab >>Maintenance-related IEC dependability standards
2006 (English)In: Engineering Asset Management: Proceedings of the First World Congress on Engineering Asset Management (WCEAM), London: Encyclopedia of Global Archaeology/Springer Verlag, 2006, p. 115-119Conference paper, Published paper (Refereed)
Abstract [en]

Within the International Electrotechnical Commission, IEC, there exists a committee, named IEC Technical Committee 56 "Dependability", TC56 for short. Its history can be traced back to 1965, when the Reliability and Maintainability Committee was formed. In 1990, after contacts with ISO, it was decided that the IEC/TC56 should be responsible for standardization in the field of dependability, in any appropriate technological area, including those normally considered as outside the scope of IEC. The term "dependability" is a collective term, used to describe availability performance and its constituent factors reliability performance, maintainability performance, and maintenance support performance. Within the IEC/TC56 a number of maintenance related standards and guidelines have been produced, covering e.g. maintainability of equipment, reliability-centred maintenance, integrated logistic support, and also an application guide entitled "Maintenance and maintenance support". Also, Chapter 191 of the International Electrotechnical Vocabulary, freely available on the Internet, contains a wealth of maintenance-related terms. This paper is intended to give an overview of the standards available and some insight into the ongoing efforts within IEC/TC56 to produce new standards and to maintain existing ones. It should not be seen as an official promotion of the IEC Dependability Standards series. Instead, it presents some personal experiences and reflections on the use and usefulness of the standards series.

Place, publisher, year, edition, pages
London: Encyclopedia of Global Archaeology/Springer Verlag, 2006
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-39638 (URN)10.1007/978-1-84628-814-2_12 (DOI)e786acf0-c34e-11db-9ea3-000ea68e967b (Local ID)1846285836 (ISBN)e786acf0-c34e-11db-9ea3-000ea68e967b (Archive number)e786acf0-c34e-11db-9ea3-000ea68e967b (OAI)
Conference
World Congress on Engineering Asset Management : 11/07/2006 - 14/07/2006
Note

Godkänd; 2006; 20070206 (ysko)

Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2018-03-13Bibliographically approved
Akersten, P.-A. & Espling, U. (2005). Postponed Replacement: A Risk Analysis Case Study (ed.). In: (Ed.), (Ed.), ICOMS-2005: International Conference of Maintenance Societies : maintenance planning and practice - back to basics, 31 May - 2 June, Hobart, Australia. Paper presented at International Conference of Maintenance Societies : 31/05/2005 - 03/06/2005. Melbourne: MESA - Maintenance Engineering Society of Australia
Open this publication in new window or tab >>Postponed Replacement: A Risk Analysis Case Study
2005 (English)In: ICOMS-2005: International Conference of Maintenance Societies : maintenance planning and practice - back to basics, 31 May - 2 June, Hobart, Australia, Melbourne: MESA - Maintenance Engineering Society of Australia , 2005Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Melbourne: MESA - Maintenance Engineering Society of Australia, 2005
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-39481 (URN)e419a9d0-9795-11db-8975-000ea68e967b (Local ID)e419a9d0-9795-11db-8975-000ea68e967b (Archive number)e419a9d0-9795-11db-8975-000ea68e967b (OAI)
Conference
International Conference of Maintenance Societies : 31/05/2005 - 03/06/2005
Note
Godkänd; 2005; 20061230 (ysko)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved
Akersten, P.-A. (2004). Managing product support requirements: some examples (ed.). In: (Ed.), (Ed.), Asset management: 21st century core competency ; 8th International Conference of Maintenance Societies ; Star City, Sydney, Australia, 25 - 28 May 2004 ; proceedings. Paper presented at International Conference of Maintenance Societies : 25/05/2004 - 27/05/2004. Sidney: MESA - Maintenance Engineering Society of Australia
Open this publication in new window or tab >>Managing product support requirements: some examples
2004 (English)In: Asset management: 21st century core competency ; 8th International Conference of Maintenance Societies ; Star City, Sydney, Australia, 25 - 28 May 2004 ; proceedings, Sidney: MESA - Maintenance Engineering Society of Australia , 2004Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Sidney: MESA - Maintenance Engineering Society of Australia, 2004
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-34366 (URN)88a3c390-c0e1-11db-834c-000ea68e967b (Local ID)88a3c390-c0e1-11db-834c-000ea68e967b (Archive number)88a3c390-c0e1-11db-834c-000ea68e967b (OAI)
Conference
International Conference of Maintenance Societies : 25/05/2004 - 27/05/2004
Note
Godkänd; 2004; 20070220 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Backlund, F. & Akersten, P.-A. (2003). RCM introduction: process and requirements management aspects (ed.). Paper presented at . Journal of Quality in Maintenance Engineering, 9(3), 250-264
Open this publication in new window or tab >>RCM introduction: process and requirements management aspects
2003 (English)In: Journal of Quality in Maintenance Engineering, ISSN 1355-2511, E-ISSN 1758-7832, Vol. 9, no 3, p. 250-264Article in journal (Refereed) Published
Abstract [en]

Organisations have introduced reliability-centred maintenance (RCM) with a view to changing their overall way of performing maintenance. Many times, however, these organisations have experienced cumbersome or even failed RCM introduction. This is usually because of managerial and organisational obstacles, which more or less unexpectedly turn up during introduction. This paper focuses on managing the introduction of RCM. By applying process and requirement management principles, obstacles that turn up during introduction can be identified early on. As an example of this, we cite the results of a case study of the introduction of RCM in a Swedish hydropower company.

National Category
Reliability and Maintenance Other Civil Engineering
Research subject
Quality Technology and Management; Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-11389 (URN)10.1108/13552510310493701 (DOI)2-s2.0-0141988591 (Scopus ID)a5776130-f04b-11dc-ba03-000ea68e967b (Local ID)a5776130-f04b-11dc-ba03-000ea68e967b (Archive number)a5776130-f04b-11dc-ba03-000ea68e967b (OAI)
Note
Validerad; 2003; 20080312 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Akersten, P.-A. & Klefsjö, B. (2003). Total dependability management (ed.). In: (Ed.), Hoang Pham (Ed.), Handbook of Reliability Engineering: (pp. 559-565). Paper presented at . London: Encyclopedia of Global Archaeology/Springer Verlag
Open this publication in new window or tab >>Total dependability management
2003 (English)In: Handbook of Reliability Engineering, London: Encyclopedia of Global Archaeology/Springer Verlag, 2003, p. 559-565Chapter in book (Other academic)
Abstract [en]

The authors strongly believe that the system view of dependability management will facilitate organizations to work with dependability matters, since things are "put together to create a whole". Total dependability management builds upon the availability and use of all three management system components: a set of supporting core values, an appropriate methodology, and the skillful use of contextually adapted tools.

Place, publisher, year, edition, pages
London: Encyclopedia of Global Archaeology/Springer Verlag, 2003
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-20342 (URN)10.1007/1-85233-841-5_31 (DOI)413802d0-849b-11dd-8275-000ea68e967b (Local ID)978-1-85233-453-6 (ISBN)978-1-85233-841-1 (ISBN)413802d0-849b-11dd-8275-000ea68e967b (Archive number)413802d0-849b-11dd-8275-000ea68e967b (OAI)
Note
Godkänd; 2003; 20080917 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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