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Time dependent stress-strength model for a pitch link in a hydropower unit
Luleå tekniska universitet.
Luleå tekniska universitet.
2003 (English)In: International Journal of COMADEM, ISSN 1363-7681, Vol. 6, no 4, p. 3-8Article in journal (Refereed) Published
Abstract [en]

When Choosing between replacement and reinvestment alternatives, decisions are based upon economic, safety and ecological constraints. Reliability models to predict the risk of future failure is one way to improve the decision guidance document. In this paper the probability of failure for a pitch-ink in a kaplan hub has been investigated with respect to number of load cycles the link been exposed to. The failure reliability model is based on basic design variables, e.g. material properties, load tolerances etc. and the probability density functions of these variables. From this the probability of failure is computed following statistical methods. Physics-based reliability models are a possible way to determine the probability of failure for hydropower components. These models will give an estimation of how different operation in a design variables affect life expectancy.

Place, publisher, year, edition, pages
2003. Vol. 6, no 4, p. 3-8
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-6529Local ID: 4c0d4a80-0387-11dc-8b31-000ea68e967bOAI: oai:DiVA.org:ltu-6529DiVA, id: diva2:979415
Note
Validerad; 2003; 20070516 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-01-10Bibliographically approved

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