NDLI: Life prediction of composite turbine blades under random ocean current and velocity shear

Content Provider	IEEE Xplore Digital Library
Author	Mahfuz, H. Akram, M.W.
Copyright Year	2011
Description	Author affiliation: Department of Ocean and Mechanical Engineering, Southeast National Marine Renewable Energy Center (SNMREC), Florida Atlantic University, Boca Raton, FL 33431 (Mahfuz, H.) \|\| Department of Mechanical Science and Engineering, University of Illinois at Urbana Champaign, Urbana, IL 61801 (Akram, M.W.)
Abstract	Design, analysis and life prediction of a composite ocean current turbine (OCT) blade has been investigated. Loading on a turbine blade under Gulf Stream in South Florida location (26° 4.3N 79° 55W) at 50 meter depth is considered. Ocean current is random in nature and it varies with respect to time. This variation further intensifies if turbulence is added. In addition, change in velocity profile with ocean depth also introduces shear. During its service life, an ocean current turbine blade would experience repeated and alternating stresses leading to fatigue loading. Sources of such fatigue loading could be many but most dominant ones are due to randomness of ocean current and velocity shear. Effects of these two types of loading are probed and a methodology to predict fatigue life is described in this paper.
Starting Page	1
Ending Page	7
File Size	923972
Page Count	7
File Format	PDF
ISBN	9781457700866
e-ISBN	9781457700880
DOI	10.1109/Oceans-Spain.2011.6003526
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-06
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Oceans Blades Loading Stress Fatigue Materials Turbines
Content Type	Text
Resource Type	Article

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