| Autor: |
Courage, W.M.G., Dragt, R.C., Pijpers, R.J.M., Maljaars, J., Walters, C.L., Weijde, G.D. van der |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
International journal for Electricity and Heat Generation, 7, 96, 83-89 |
| Popis: |
design driver for Offshore Wind Turbine (OWT) substructures and also has an im-pact on operational costs. During service life, inspections are required to detect fa-tigue cracks at an early stage. These cracks may need to be repaired. The costs of in-spections and repair are high for offshore structures. To reduce the cost of energy, it is worthwhile to review options to remove unnecessary conservatism in inspections and service life predictions. This paper presents three tools (models) that are un-der development in projects at TNO which aim to reduce the conservatism in fatigue estimations. These tools are respectively: (I) including load cycle history effects in the fatigue crack growth model; (II) a frac-ture toughness model that provides a bet-ter assessment of the maximum allowable crack; and (III) a probabilistic approach to determine inspection intervals based on information gathered during service life. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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