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Prediction of fatigue damage to wind turbines. Phase 2

Technical Report:

Abstract

This report describes the second phase of a project to develop fatigue prediction procedures. In the first phase of the work, WTG rotor loads were synthesised in the time domain and a standard rainflow counting procedure was then used to assess the fatigue cycle distribution. The results indicated that a spectral definition of stochastic strain contains sufficient information to allow a realistic assessment of strain cycles for fatigue damage prediction. Time history synthesis was, however, only intended as a first step towards a wholly frequency domain design tool. The objective of the present study was to investigate statistical techniques for predicting fatigue life directly from spectral definitions of rotor loads. The final product would enable fatigue life prediction to be carried out at the parametric study phase of WTG rotor design. (author)
Publication Date:
Dec 01, 1993
Product Type:
Technical Report
Report Number:
ETSU-W-44/00150/REP; WEG-T-4132
Reference Number:
SCA: 170602; PA: GB-93:053110; EDB-94:012180; NTS-94:007885; ERA-19:003477; SN: 93001112881
Resource Relation:
Other Information: PBD: 1993
Subject:
17 WIND ENERGY; WIND TURBINES; FATIGUE; DAMAGE; FORECASTING; 170602; TURBINE DESIGN AND OPERATION
Sponsoring Organizations:
AEA Environment and Energy, Harwell (United Kingdom)
OSTI ID:
10111899
Research Organizations:
Wind Energy Group Ltd., Southall (United Kingdom)
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Other: ON: DE94725261; CNN: Contract E/5A/CON/5117/1927; TRN: GB9353110
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
GB
Size:
194 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Hoskin, R E, Warren, J G, and Draper, J. Prediction of fatigue damage to wind turbines. Phase 2. United Kingdom: N. p., 1993. Web.
Hoskin, R E, Warren, J G, & Draper, J. Prediction of fatigue damage to wind turbines. Phase 2. United Kingdom.
Hoskin, R E, Warren, J G, and Draper, J. 1993. "Prediction of fatigue damage to wind turbines. Phase 2." United Kingdom.
@misc{etde_10111899,
title = {Prediction of fatigue damage to wind turbines. Phase 2}
author = {Hoskin, R E, Warren, J G, and Draper, J}
abstractNote = {This report describes the second phase of a project to develop fatigue prediction procedures. In the first phase of the work, WTG rotor loads were synthesised in the time domain and a standard rainflow counting procedure was then used to assess the fatigue cycle distribution. The results indicated that a spectral definition of stochastic strain contains sufficient information to allow a realistic assessment of strain cycles for fatigue damage prediction. Time history synthesis was, however, only intended as a first step towards a wholly frequency domain design tool. The objective of the present study was to investigate statistical techniques for predicting fatigue life directly from spectral definitions of rotor loads. The final product would enable fatigue life prediction to be carried out at the parametric study phase of WTG rotor design. (author)}
place = {United Kingdom}
year = {1993}
month = {Dec}
}