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  • 1.
    Candell, Olov
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Development of information support solutions for complex technical systems using eMaintenance2009Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [sv]

    Spridningen och användningen av komplexa tekniska system är vanliga i samhället och inom industrin. Många av de komplexa tekniska systemen har stränga krav på säkerhet, tillförlitlighet och kostnader, vilket kräver frekventa uppdateringar och ändringar till följd av ny teknisk utveckling och förändrade funktionskrav. Därför är korrekt, kontextanpassad och aktuell information och informationsstöd avgörande för åtkomst, förvaltning, underhåll och förbättring av de kravställda tjänster som skall tillhandahållas av dessa system. Med tanke på den tekniska utvecklingen och föränderliga företagsklimat, behöver system- och supportleverantörer förbättra utformning och tillhandahållande av lösningar för informationssupport. Detta kan underlättas genom användning av ny och innovativ informations- och kommunikationsteknologi, (IKT) vilka visar sig i form av nya metoder såsom eMaintenance. Det finns dock fortfarande ett behov av metoder och verktyg för utveckling och tillhandahållande av informationssupport genom en integration av affärs- och underhållsprocesser hos både kunder och leverantörer, för att åstadkomma nya affärslösningar såsom Prestandabaserad Logistik (PBL) i de sammanhang som beskrivs ovan. Syftet med denna forskning är därför för att beskriva hur leverantörer av supportlösningar kan utveckla och erbjuda effektiv informationssupport som stöd kopplat till komplicerade tekniska system genom ökad användning av IKT. För att uppnå detta syfte, har en fallstudie inom militär luftfarten utförts. Empiriska data har samlats in genom intervjuer, observationer, arkivstudier, workshops och deltagande forskning. Analysen baseras på befintlig, anpassad och utvecklade teorier, modellbaserade simulering och tillgängliga internationella standarder, i beaktande av ett ramverk för eMaintenance. Resultaten av forskningen är: I) en definition av service-, process- och livscykelorientede eMaintenance lösningar, II) en identifiering av kunders och leverantörers kritiska krav på information och informationssupport III) en identifiering av IKT-relaterade metoder och teknologier lämpade att uppfylla kunder och leverantörers krav på informationssupport, IV) ett tillvägagångssätt för utveckling och tillhandahållande av IKT-baserade lösningar för informationssupport som uppfyller kraven från kunder och leverantörer. Även om dessa resultat erhållits inom kontexten för ett modernt militärflygplan, indikerar resultat erhållna i forskningsprocessen att de i stor utsträckning är allmänna till sin karaktär och kan vara tillämpliga på andra komplexa tekniska system inom processindustrin, elproduktion och transportindustri.

  • 2.
    Candell, Olov
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Development of user information products for complex technical systems2004Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [sv]

    Interaktion med tekniska system är en del av det dagliga livet. System byggda av människan har uppnått aldrig tidigare skådade nivåer av komplexitet, vilket ställer nya krav på de organisationer som utvecklar och tillverkar dem. Samtidigt används de ofta i miljöer, som ställer mycket höga krav på säkerhet, trovärdighet och tillförlitlighet. Som användare av komplexa system behöver människan stöd för att kunna utnyttja och upprätthålla den nytta och de tjänster systemet i fokus levererar. Vid sidan av mera traditionellt stöd som service och underhåll, innefattar kundstöd även omfattande dokumentation. Trots en enorm utveckling av system för hantering av dokumentation avseende komplexa produkter är det fortfarande ett problem för användare att få tillgång till information och att förstå den. Utvecklingsmetoder för användarinformation behöver därför utvecklas och förbättras. Syftet med den aktuella studien är att utforska och beskriva utvecklingen av inressentbaserade informationsprodukter för komplexa tekniska system. Den kunskap som söks är en modell som kopplar ihop teori med praktisk tillämpning, d.v.s. arbetssätt och verktyg som kan stödja utveckling och ständiga förbättringar av intressentbaserade informationsprodukter för komplexa tekniska system. För att uppfylla syftet har en fallstudie, stödd av en litteraturstudie, genomförts. Fallstudien fokuserar på ett modernt stridsflygplan, som är ett ytterst komplext system med stränga krav på användarinformation. En utvecklingsmetod för användarinformationsprodukter har anpassats och sedan tillämpats och studerats under utvecklingen av en demonstrator. Studiens resultat kan beskrivas i två delar. Den första delen är en identifiering av arbetssätt och verktyg för kravinsamling och utveckling av användarinformationsprodukter. Dessa har identifierats inom områdena kognitionsvetenskap, människa-maskin-system, kvalitetsteknik och kravhantering. Den andra delen är resultatet av ett prov av det föreslagna arbetssättet genom utveckling av en demonstrator. Jämfört med ett traditionellt utvecklingssätt bidrar det föreslagna arbetssättet till ett ökat intressentfokus och en mer effektiv kommunikation mellan utvecklare och intressenter och även inom det tvärfunktionella teamet av utvecklare. Arbetssättet underlättar och förbättrar även kravhanteringen samt bidrar till att minska affärsrisker kopplade till feltolkningar och meningsskiljaktigheter kring en produktspecification.

  • 3.
    Candell, Olov
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Karim, Ramin
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    eMaintenance: information driven maintenance and support2008Ingår i: Proceedings of the 18th International Conference on Flexible Automation and Intelligent Manufacturing: June 30th - July 2nd, 2008, Skövde, Sweden / [ed] Leo J. de Vin, Skövde: Högskolan i Skövde , 2008, s. 365-372Konferensbidrag (Refereegranskat)
    Abstract [en]

    Today's providers of maintenance and in-service support related to modern aircraft are facing major challenges. A central problem with maintenance and support of aircraft and other complex technical systems is to manage the ever-increasing information flow and system complexity. Both military and commercial operators need to reduce downtime and one way to do this is to speed up the turnaround time for scheduled and unscheduled maintenance, or even better, to reduce the need thereof by implementing condition based maintenance. In order to implement these improved support solutions in a global support environment, eMaintenance is seen as one important building block. eMaintenance includes monitoring, collection, recording and distribution of real-time system health data, maintenance generated data as well as other decision and performance support to all stakeholders independent of organization or geographical location, 24 hours a day, 7 days a week (24/7). eMaintenance has the potential to improve the management and performance of activities related to the maintenance process, and thereby improve the dependability, safety and life cycle cost of critical systems. This is realized through the application of Information & Communication Technology (ICT) throughout the maintenance and support processes, thus integrating built-in tests, external tests at different maintenance echelons, technical information, diagnostics, prognostics and other sources of support information. The purpose of this paper is to present some results from a joint academic and aerospace industry research project, describing requirements and expectations that are important in a global support environment, and also to propose some central components in an eMaintenance framework that integrates maintenance and ICT perspectives.

  • 4.
    Candell, Olov
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Karim, Ramin
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Parida, Aditya
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Development of information system for e-maintenance solutions within the aerospace industry2011Ingår i: International Journal of Pedagogy, Innovation and New Technologies, ISSN 0973-1318, E-ISSN 2392-0092, Vol. 7, nr 6, s. 583-592Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Maintenance and support providers to modern aircraft need to manage an increasing amount of information generated by growing system complexity and stakeholder requirements. This introduces new risks in the information management process and makes traditional information services and systems inadequate. However, recent advancements in information and communication technology (ICT) have contributed to the emerging approach of e-Maintenance, which forms an important building block to achieve the desired information logistics. e-Maintenance enables remote and real time maintenance, and includes; collection, monitoring, analysis and distribution of data and information as decision-support to stakeholders of the maintenance and support processes, independent of organization or geographical location, 24 hours a day and 7 days a week (24/7). This paper describes a proposed development of information products by linking theories to practical methodologies and tools (e.g., Quality Function Deployment, QFD) through the development of a demonstrator of a stakeholder-based information product in the context of a modern combat aircraft. Read more about November 2011 P8 - Development of Information System for e-Maintenance Solutions within the Aerospace Industry by www.ijpe-online.com

  • 5.
    Candell, Olov
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Karim, Ramin
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Söderholm, Peter
    eMaintenance - information logistics for maintenance support2009Ingår i: Robotics and Computer-Integrated Manufacturing, ISSN 0736-5845, E-ISSN 1879-2537, Vol. 25, nr 6, s. 937-944Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Today‟s providers of maintenance and in-service support related to modern aircraft are facing major challenges. A central problem with Maintenance, Repair and Overhaul (MRO) as well as support of aircraft and other complex technical systems, is to manage the ever-increasing information flow and system complexity. Both military and commercial operators need to reduce aircraft downtime and maintenance man hours. Increased manual information management has the opposite effect, inducing unnecessary cost and affect efficiency negatively. Organisations developing and providing maintenance support products and in-service support does also need to improve the capability to efficiently exploit the increasing amount of digital product information and design data provided together with hardware (HW) and software (SW) products from aircraft manufacturers, sub-system suppliers and Original Equipment Manufacturers (OEM). One way to increase aircraft availability and improve maintenance and support efficiency, is to speed up the turnaround time for scheduled and unscheduled maintenance. The ultimate goal is risk-based utilisation and support, where true Condition-Based Maintenance (CBM) is integrated with current operational requirements and available resources in real-time. This aims at the elimination of all preventive scheduled maintenance based on fixed time intervals and execution of only corrective maintenance that has been predicted and turned into scheduled maintenance facilitated by proper support. To address the challenge of information logistics of digital product data and information within maintenance in-service support, providers need to adapt new methodologies and tools that enable full utilisation of the advantages of digital product data and information in processes and business models, e.g. Service-Oriented Architecture (SOA). In order to implement such improved support solutions in a global support environment, eMaintenance is seen as one important building block. eMaintenance includes monitoring, collection, recording and distribution of real-time system health data, maintenance generated data as well as other decision and performance support information to different stakeholders independent of organization or geographical location, 24 hours a day, 7 days a week (24/7). eMaintenance has the potential to improve the management and performance of activities related to the whole maintenance process, and thereby improve the dependability, safety and Life Cycle Cost (LCC) of critical systems. This can be realized through a coordinated application of Information & Communication Technology (ICT) throughout the maintenance and support processes, thus integrating Built-in Test (BIT) systems, external tests at different maintenance echelons, technical information, diagnostics, prognostics and other sources of support information. The purpose of this paper is to present some results from a joint academic and aerospace industry research project, describing requirements and expectations that are important in a global support environment, and also to propose some central components in an eMaintenance framework that integrates maintenance and ICT perspectives.

  • 6.
    Candell, Olov
    et al.
    Saab Aerotech, Linköping.
    Karim, Ramin
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Söderholm, Peter
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi.
    Kumar, Uday
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Server-oriented information logistics as support to intelligent transport services2010Ingår i: 16th World Congress and Exhibition on Intelligent Transport Systems 2009: 16th ITS World Congress ; Stockholm, Sweden, 21 - 25 September 2009, Curran Associates, Inc., 2010Konferensbidrag (Refereegranskat)
    Abstract [en]

    Today‟s society is dependent on an increasing volume of transportation services, which contributes to escalating requirements on economy, dependability, safety, and sustainability of applied transportation systems. When dealing with complex transportation systems with long life cycles, maintenance is fundamental to ensure these critical requirements. The increasing requirements and the technological development have also lead to the emerging approach of eMaintenance, which applies innovative Information & Communication Technology (ICT) to achieve effective information logistics for maintenance purposes. This paper describes the role and development of service-oriented eMaintenance solutions to enable intelligent transportation services and some related research efforts within railway and aviation.

  • 7.
    Candell, Olov
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Söderholm, Peter
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    A customer and product support perspective of e-maintenance2006Ingår i: Condition Monitoring and Diagnostic Engineering Management: COMADEM 2006 ; proceedings of the 19th international congress, Luleå, Sweden, 12 - 15 June 2006 / [ed] Uday Kumar, Luleå: Luleå tekniska universitet, 2006, s. 243-252Konferensbidrag (Refereegranskat)
    Abstract [en]

    Today the providers of customer and product support related to military aircraft are facing major challenges. Traditionally, aircraft systems have stringent requirements on safety. In addition to this, the requirements on dependability, costs, and security have increased in importance. These changes, together with an increased diversity of customer requirements in a global utilization environment, add to the complexity of providing appropriate support solutions. The increased customer requirements have also lead to concepts such as total solution selling, or functional products, where the customers are offered availability performance to a fixed price. In order to enable efficient support solutions in a global support environment, e-Maintenance is seen as one important building block. e-Maintenance includes monitoring, collection, and distribution of realtime system health data and information to all stakeholders independent of organizational belonging or geographical location, 24 hours a day, 7 days a week (24-7). The concept of e-Maintenance is realized through the application of Information & Communication Technology (ICT), which integrates built-in tests, external tests at different maintenance echelons, and other sources of support information. The purpose of this paper is to describe important requirements and expectations that a provider of customer and product support related to military aircraft systems has on e-Maintenance in a global support environment.

  • 8.
    Karim, Ramin
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Candell, Olov
    Söderholm, Peter
    Development of ICT-based maintenance support services2009Ingår i: Journal of Quality in Maintenance Engineering, ISSN 1355-2511, E-ISSN 1758-7832, Vol. 15, nr 2, s. 127-150Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose - The purpose of this paper is to describe a taxonomy for an eMaintenance management framework (eMMF) based on a service-oriented approach, in order to facilitate the development of information and communication technology (ICT)-based maintenance support services aimed at actors within the maintenance process related to complex technical industrial systems. Design/methodology/approach - To fulfil this purpose, a case study of a modern multi-role combat aircraft is selected as an appropriate research strategy and supported by a literature study. Empirical data are collected through interviews, workshops, document studies, and observations. A framework is developed and evaluated using a prototype within the studied case. The study is performed in close cooperation with the aircraft's type certificate holder and the customer representative and operator in one country. Findings - The proposed eMMF aids in the identification and development of ICT-based maintenance support services tailored for specific maintenance actors and their activities. Research limitations/implications - To further test the usefulness of the proposed framework, a larger scale application must be performed. This can involve additional stakeholders or a larger part of the technical system in the selected case, or another case dealing with complex technical industrial systems. Practical implications - The proposed framework supports the identification of required information services that support the maintenance process, which in turn supports the development of a service-oriented architecture (SOA) aimed at proper maintenance information logistics. Hence, people working with information logistics for maintenance purposes can use the framework as a support tool. Originality/value - The proposed framework combines a process and service-oriented approach, which facilitates the development of SOA-based information services by giving valuable input to more traditional system-oriented approaches

  • 9.
    Karim, Ramin
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Candell, Olov
    Söderholm, Peter
    E-maintenance and information logistics: aspects of content format2009Ingår i: Journal of Quality in Maintenance Engineering, ISSN 1355-2511, E-ISSN 1758-7832, Vol. 15, nr 3, s. 308-324Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    PurposeThe purpose of this paper is to describe aspects of content sharing within eMaintenance, with a view to merging the two areas of maintenance and ICT in a content management perspective. The purpose of this paper is to describe aspects of content sharing within eMaintenance, with a view to merging the two areas of maintenance and ICT in a content management perspective. Design/methodology/approachThe approach is an explorative literature study covering aspects of ICT. The analysis was founded on theories related to maintenance and maintenance support. The conclusions of the study are corroborated by experiences from earlier software development and testing. The approach is an explorative literature study covering aspects of ICT. The analysis was founded on theories related to maintenance and maintenance support. The conclusions of the study are corroborated by experiences from earlier software development and testing. FindingsMost existing contributions to the eMaintenance debate seem to suffer from too wide a gap between data processing and knowledge management. This tendency can be due to too great a focus on data collection, without any clear identification of the stakeholders‟ requirements. Hence, a mature eMaintenance solution should focus on the enhancement of service-oriented information logistics based on content sharing for an output-based information strategy. Most existing contributions to the eMaintenance debate seem to suffer from too wide a gap between data processing and knowledge management. This tendency can be due to too great a focus on data collection, without any clear identification of the stakeholders‟ requirements. Hence, a mature eMaintenance solution should focus on the enhancement of service-oriented information logistics based on content sharing for an output-based information strategy. Research limitations/implicationsThis study focuses on the needs of content format and transformation content, which includes data format, data structures and data type for objects that are relevant for the maintenance process. Hence, further research could include aspects of infrastructure and service architecture, which are on a higher level of an eMaintenance solution. This study focuses on the needs of content format and transformation content, which includes data format, data structures and data type for objects that are relevant for the maintenance process. Hence, further research could include aspects of infrastructure and service architecture, which are on a higher level of an eMaintenance solution. Practical implicationsThe paper contributes with knowledge that supports decisions about content format in the development of an eMaintenance solution. This can in turn support a reduction of maintenance-related hazards through improved use of ICT. The paper contributes with knowledge that supports decisions about content format in the development of an eMaintenance solution. This can in turn support a reduction of maintenance-related hazards through improved use of ICT. What is original/value of paperThis paper describes the importance of content management within the eMaintenance approach. Hence, the paper has implications for both practitioners and researchers as described above. This paper describes the importance of content management within the eMaintenance approach. Hence, the paper has implications for both practitioners and researchers as described above.

  • 10.
    Karim, Ramin
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Kajko-Mattsson, Mira
    Stockholm University and KTH.
    Söderholm, Peter
    Candell, Olov
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Tyrbern, Tommy
    Saab Aerotech.
    Öhlund, Hans
    Swedish Air Force Wing F21.
    Johansson, Jan
    Swedish Defence Materiel Administration.
    Positioning embedded software maintenance within industrial maintenance2008Ingår i: 2008 IEEE International Conference on Software Maintenance: [ICSM 2008] ; Beijing, China, 28 September - 4 October 2008, Piscataway, NJ: IEEE Communications Society, 2008, s. 440-443Konferensbidrag (Refereegranskat)
    Abstract [en]

    Little is known about of how software embedded in complex industrial technical systems is maintained. In this paper, we identify industrial maintenance process steps and position software maintenance activities within them. We do this in the context of JAS 39 Gripen, a multi-role combat aircraft developed by Saab.

  • 11.
    Karim, Ramin
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Parida, Aditya
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Candell, Olov
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Kumar, Uday
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    eMaintenance industrial applications: issues and challenges2014Ingår i: Engineering Asset Management 2011: Proceedings of the Sixth World Congress on Engineering Asset Management / [ed] Jay Lee; Jun Ni; Jagnathan Sarangapani; Joseph Mathew, New York: Encyclopedia of Global Archaeology/Springer Verlag, 2014, s. 33-40Konferensbidrag (Refereegranskat)
    Abstract [en]

    Achieving business excellence within industries which utilise complex technical systems requires effective and efficient maintenance. Maintenance is an important enabler of business performance. An effective maintenance strategy creates additional values in an organisation’s value-generating process. Establishing an effective and efficient maintenance process is highly dependent on supporting Information and Communication Technology (ICT) infrastructure for information logistics that facilitates maintenance decision support. eMaintenance solutions facilitates effective and efficient management and control of maintenance activities through an enhanced utilisation of computing; like;.estimation of their Remaining Useful Life (RUL); reduction of No-Fault Found (NFF); and prediction of fault. eMaintenance solutions enable a seamless integration and fusion of information services provided by information intensive systems with embedded components in order to manage increasing and extentensively distributed real‐time data collected via different data sources (e. g. sensors). Since, the emerging ‘Internet of Things’ is expecting to dramatically change information systems with inherent embedded components, eMaintenance solutions need to be adapted to this new context to fulfil the overall business requirements on an effective and efficient decision-making process; for e.g.: real‐time analysis based on real‐time data and context-aware information logistics. However, development and establishment of proper eMaintenance solutions can be facilitated through utilisation of appropriate framework which deals with real-world challenges. This paper explores some of the issues and challenges pertaining to eMaintenance industrial application.

  • 12.
    Szymanowski, Mårten
    et al.
    Saab Technologies.
    Candell, Olov
    Karim, Ramin
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Challenges for interactive electronic technical publications in military aviation2010Ingår i: Proceedings of the 1st international workshop and congress on eMaintenance, Luleå tekniska universitet, 2010, s. 190-195Konferensbidrag (Refereegranskat)
    Abstract [en]

    In military aviation, Technical Publications (TP) are fundamental for the establishment of a maintenance strategy and provisioning of information support and maintenance services. They are also under the supervision of military authorities. For complex technical systems such as aircraft, technical publications often contain essential information such as indenture levels, repair and replacement instructions, spare part information, configuration information, required tools and item-related maintenance information. The manufacturer is faced with the challenge of coordinating the production of the complete TP-package. Authors and illustrators must write, draw and supply meta-data to every piece of information. They must do so according to detailed specifications (e.g. ASD S1000D) and writing guides. There is also complex cross-reference handling within the TP-package to consider, e.g. from maintenance instructions to illustrated parts catalogues. Cross-references exist within the content in the same publication, to other publications and/or to external information sources, e.g. databases. The information contained in the final TP-package is equivalent to, literally, tens of thousands of A4-pages. Paper-based deliveries, when occurring, are in themselves a logistic feat. The need for context-based adaptation of this complex information content to different actors' requirements is also challenging and need to be considered when establishing an efficient information logistic solution for provision of TP. Hence, the purpose of this paper is to provide an overview of some of the challenges and issues for establishing development and provisioning of Interactive Electronic Technical Publications (IETP[1]). Some important aspects and requirements on integration of IETP for both provider and user are also highlighted. The scope of the overview is restricted to an eMaintenance context related to military aviation.

  • 13.
    Söderholm, Peter
    et al.
    Expert and Development Unit, Banverket.
    Karim, Ramin
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Candell, Olov
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Design of experiment and simulation for identification of significant e-maintenance services2011Ingår i: International Journal of Pedagogy, Innovation and New Technologies, ISSN 0973-1318, E-ISSN 2392-0092, Vol. 7, nr 1, s. 77-90Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The purpose of this paper is to present a methodology and a supporting toolbox that identify information-based maintenance support services using an evaluation of the services' impacts on the effectiveness of complex technical systems. A hypothetical aircraft and its support system are simulated in SIMLOX. The variables included in the model, as well as their expected effects on critical measures of system-effectiveness, were identified through interviews and studies of documents and the literature. The simulations have been planned and analysed according to established Design of Experiment (DoE) principles supported by MATLAB. Microsoft Access and Microsoft Visual Studio.NET has been used to integrate SIMLOX and MATLAB. The outcome of the study was scrutinised by both practitioners and statisticians. The methodology and its toolbox are useful for those involved in simulation work or the development of information services that support maintenance activities. The proposed systematic methodology, along with its supporting toolbox, identifies information-based services that are currently lacking when applying a Service-Oriented Architecture (SOA) approach during design and are considered valuable in identifying information-based maintenance support services within an eMaintenance solution

  • 14.
    Söderholm, Peter
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Karim, Ramin
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Candell, Olov
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Kumar, Uday
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Condition monitoring and maintenance support information services2009Ingår i: Proceedings of CM/MFPT 2009 - (CM2009): CD Proceedings of The Sixth International Conference on Condition Monitoring and Machinery Failure Prevention Technologies - CM/MFPT 2009, held 23-25 June 2009 at the Stillorgan Park Hotel, Dublin, Ireland, Longborough, Glos.: British Institute of Non-Destructive Testing and Coxmoor Publishing , 2009, s. 284-294Konferensbidrag (Refereegranskat)
    Abstract [en]

    Interaction with technological systems is an intrinsic part of daily life. The complexity of these man-made systems has reached unprecedented levels, and challenges the organizations that develop and utilize them. Simultaneously, they are often used in environments that imply very high requirements on safety, credibility, and reliability. Hence, users of complex systems need information support to access and maintain the utility and services that the system-of-interest is to provide. Examples of solutions for this are Built-in Test (BIT) and Condition Monitoring (CM) systems aimed at increased maintainability performance of technical systems. However, despite these solutions there are still drawbacks manifested by No Fault Found (NFF) and Dead-on-Arrival (DoA) events, which may erode any benefits that BIT and CM systems may provide. Hence, in spite of tremendous development of information services for complex systems, there is still a problem for users to access and understand the information. Therefore, the development of maintenance support information services need to be evolved. This paper describes a service-oriented approach to CM as support to maintenance of complex technical systems. The service-oriented CM can be integrated in an information logistics solution through the utilization of new and innovative Information & Communication Technology (ICT). The proposed approach is illustrated in the context of modern aircraft.

  • 15.
    Tretten, Phillip
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Parida, Aditya
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Karim, Ramin
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Candell, Olov
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Drift, underhåll och akustik.
    Guest editorial2015Ingår i: International Journal of COMADEM, ISSN 1363-7681, Vol. 18, nr 2, s. 5-6Artikel i tidskrift (Övrigt vetenskapligt)
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