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contributor authorZhang, Jian-Ping
contributor authorGong, Zhen
contributor authorGuo, Liang
contributor authorWu, Helen
date accessioned2019-02-28T11:06:24Z
date available2019-02-28T11:06:24Z
date copyright5/2/2018 12:00:00 AM
date issued2018
identifier issn0892-7219
identifier otheromae_140_05_051902.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4252740
description abstractFor large-scale offshore wind turbine rotating blades (NREL 5MW), the theoretical model of vibration due to fluid-structure interaction (FSI) is established, and the basic equations for modal analysis are given. Based on ANSYS workbench platform, the blade modal characteristics at different rotating speeds are analyzed, and further research on dynamic stability is carried out. The results indicate that the FSI and the blade rotation have a great influence on modal frequencies, which increase with the rotating speed of the blade under FSI. When the frequency of the periodic wind speed is close to the first-order natural frequency of the blade, both the maximum flapping displacement and the maximum von Mises stress increase with time, and the vibration divergence appears. At the safe tower clearance of 4.50 m, the critical value of the blade maximum von Mises stress shows a linear upward trend with the increase of the elasticity modulus, which provides technical references for optimization design and safe operation of wind turbine blades.
publisherThe American Society of Mechanical Engineers (ASME)
titleAnalysis of Mode and Dynamic Stability for Wind Turbine Rotating Blades
typeJournal Paper
journal volume140
journal issue5
journal titleJournal of Offshore Mechanics and Arctic Engineering
identifier doi10.1115/1.4039717
journal fristpage51902
journal lastpage051902-10
treeJournal of Offshore Mechanics and Arctic Engineering:;2018:;volume( 140 ):;issue: 005
contenttypeFulltext


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