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Hailemariam, Matias
Publications (2 of 2) Show all publications
Kans, M., Hailemariam, M., Ablay, T. & Ingwald, A. (2013). Maintenance Practices in Small and Medium Sized Enterprises. In: Congress Proceedings of COMADEM 2013, International Congress of Condition Monitoring and Diagnostics Engineering Management: . Paper presented at COMADEM 2013, International Congress of Condition Monitoring and Diagnostics Engineering Management, 11-13 June 2013, Helsinki (pp. 669-675). Finland: KP media Oy
Open this publication in new window or tab >>Maintenance Practices in Small and Medium Sized Enterprises
2013 (English)In: Congress Proceedings of COMADEM 2013, International Congress of Condition Monitoring and Diagnostics Engineering Management, Finland: KP media Oy , 2013, p. 669-675Conference paper, Published paper (Refereed)
Abstract [en]

Small and medium sized enterprises (SME) constitute approximately 70% of the gross national product and account for 80% of the global economic growth. SMEs could thus be seen as a driving force of economic growth. Maintenance management plays a critical role in enterprises’ strategic objectives and achieving the competitive advantages desired, and affects the enterprises’ internal effectiveness. To apply an efficient maintenance strategy is therefore of importance for SMEs as well as lager enterprises. As a prerequisite for improvement, one must understand the current situation. But few studies of the maintenance practices in SMEs have been carried out in the past. This paper combines findings from two studies of Swedish industry, one covering SMEs as well as large industries, and one covering only SMEs, in order to depict the current maintenance practices in Swedish SMEs.

 

Results show that SMEs put most time on execution of maintenance and less on planning and following up and that personnel and spare parts bear the largest costs. The most common trigger of maintenance actions is reported problems, followed by original equipment manufacturer recommendations and sudden failures. Condition monitoring data and statistical analysis are less common triggers though. Quite surprising, the practices in SMEs did not differ that much from the ones in larger enterprises. Sudden failures were less common as trigger for larger companies, and they utilise condition monitoring to a higher extent. Moreover, some more time is allocated for planning in larger companies compared with SMEs. The spare parts cost forms a smaller part in the total budget for larger enterprises. It is concluded that SMEs and large industries have more in common with respect to maintenance practices than they differ.

Place, publisher, year, edition, pages
Finland: KP media Oy, 2013
National Category
Reliability and Maintenance
Research subject
Technology (byts ev till Engineering), Terotechnology
Identifiers
urn:nbn:se:lnu:diva-26894 (URN)978-952-67981-0-3 (ISBN)
Conference
COMADEM 2013, International Congress of Condition Monitoring and Diagnostics Engineering Management, 11-13 June 2013, Helsinki
Available from: 2013-06-20 Created: 2013-06-20 Last updated: 2018-09-19Bibliographically approved
Al-Najjar, B. & Hailemariam, M. (2012). Maintenance Solutions for Continuous & Cost-effective Improvement of Wind Turbine Performance. In: Workshop on Advanced Maintenance Engineering, Services and Technology (A-Mest'12): . Paper presented at Second Workshop on Advanced Maintenance Engineering Services and Technology (A-MEST), 21-22 Nov, 2012, Sevilla.
Open this publication in new window or tab >>Maintenance Solutions for Continuous & Cost-effective Improvement of Wind Turbine Performance
2012 (English)In: Workshop on Advanced Maintenance Engineering, Services and Technology (A-Mest'12), 2012Conference paper, Published paper (Refereed)
Abstract [en]

Enhancement of company competitiveness and profitability demands continuous, high quality and trouble free production. Technical specifications and the condition of a wind turbine depend on the quality and condition of its significant components, which usually have the biggest impact on production continuity, - cost per KW and the environment. These necessitate intelligent technologies for maintaining the quality of significant components. Thus, it would be mandatory to select the most informative condition monitoring (CM) system and most cost-effective maintenance policy. In this paper, wind turbine problems are specified and described, available maintenance and CM techniques are discussed, and a maintenance solution with clearly specified objectives are suggested, discussed and the potential results are outlined in the end.

 

Series
IFAC postprint volumes IPPV, ISSN 1474-6670
Keywords
Most Cost-effective Maintenance, Wind Power Turbine Problems, Most Informative Condition Monitoring
National Category
Environmental Engineering
Research subject
Technology (byts ev till Engineering), Terotechnology
Identifiers
urn:nbn:se:lnu:diva-22622 (URN)978-3-902823-17-5 (ISBN)
Conference
Second Workshop on Advanced Maintenance Engineering Services and Technology (A-MEST), 21-22 Nov, 2012, Sevilla
Available from: 2012-11-26 Created: 2012-11-26 Last updated: 2019-02-26Bibliographically approved
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