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Analytical Formulae for Wind Turbine Tower Loading in the Parked Condition by Using Quasi-Steady Analysis

Analytical Formulae for Wind Turbine Tower Loading in the Parked Condition by Using Quasi-Steady... The analytical formulae are proposed to estimate the maximum value for along-wind load and across-wind load on the wind turbine towers by using the quasi-steady analysis. The critical parameters in the standard deviation such as the mode correction factors, aerodynamic damping ratios, size reduction factors and wind load ratios are investigated to identify their directional characteristics. A non-Gaussian peak factor is necessary for the along-wind load, while a Gaussian peak factor is acceptable for the across-wind load. A loads combination formula is proposed in order to consider the correlation of along-wind load and across-wind load. The proposed formulae show the favorable agreements with the full dynamic simulation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Wind Engineering SAGE

Analytical Formulae for Wind Turbine Tower Loading in the Parked Condition by Using Quasi-Steady Analysis

Wind Engineering , Volume 38 (3): 19 – Jun 1, 2014

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References (22)

Publisher
SAGE
Copyright
© 2014 SAGE Publications
ISSN
0309-524X
eISSN
2048-402X
DOI
10.1260/0309-524X.38.3.291
Publisher site
See Article on Publisher Site

Abstract

The analytical formulae are proposed to estimate the maximum value for along-wind load and across-wind load on the wind turbine towers by using the quasi-steady analysis. The critical parameters in the standard deviation such as the mode correction factors, aerodynamic damping ratios, size reduction factors and wind load ratios are investigated to identify their directional characteristics. A non-Gaussian peak factor is necessary for the along-wind load, while a Gaussian peak factor is acceptable for the across-wind load. A loads combination formula is proposed in order to consider the correlation of along-wind load and across-wind load. The proposed formulae show the favorable agreements with the full dynamic simulation.

Journal

Wind EngineeringSAGE

Published: Jun 1, 2014

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