Fatigue design of wind turbine blades: Load and resistance factors from limited data
Conference
·
OSTI ID:372121
- Stanford Univ., CA (United States). Civil Engineering Dept.
This paper considers the design of wind turbine blades to resist fatigue failures. It shows new models to reflect the impact of limited information, and applies these to several cases with notably different amounts of loads data. In each case separate load and resistance factors are developed for fatigue-resistant design. When load data are abundant, reliability is found to be driven almost solely by the resistance; e.g., by the conservatism implied in the design S-N curve. The case of sparse-load data is found to yield roughly equal contributions from load and resistance uncertainty, suggesting roughly equal conservatism should be assigned to load and resistance factors.
- OSTI ID:
- 372121
- Report Number(s):
- CONF-960154--; ISBN 0-9648731-8-4
- Country of Publication:
- United States
- Language:
- English
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