Extreme Dynamic Responses of MW-Level Wind Turbine Tower in the Strong Typhoon Considering Wind-Rain Loads
Joint Authors
Wang, Zhenyu
Zhao, Yan
Li, Fuqiang
Jiang, Jianqun
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-05-16
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The damage and collapse accidents of wind turbines during violent typhoons and rainstorms have increased in recent years.
To determine the dynamic response characteristics of high-power wind turbines under extreme conditions, wind load and rain load are simulated.
The typhoon average wind velocity and fluctuating wind velocity are simulated by the unstable wind profile and harmony superposition method.
The raindrop size distribution is simulated by the M-P spectrum, and the rain load is calculated according to the momentum theorem.
A finite element model is established to study the aerodynamic responses of a wind turbine under random typhoon load and typhoon-rain loads.
The maximum displacements and accelerations at the tower top and the maximum von Mises stresses at the tower bottom are calculated and compared after considering various combinations of wind direction deflections and rainfall intensities.
The results indicate that instantaneous wind direction deflection has a substantial impact on the dynamic responses of wind turbines, and after introducing the effect of rain, the dynamic responses increase up to 13.7% with increasing rainfall intensities.
This study has significant implications for analysing collapse accidents of wind turbines and for optimising the design of wind turbines under extreme typhoon conditions.
American Psychological Association (APA)
Wang, Zhenyu& Zhao, Yan& Li, Fuqiang& Jiang, Jianqun. 2013. Extreme Dynamic Responses of MW-Level Wind Turbine Tower in the Strong Typhoon Considering Wind-Rain Loads. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-13.
https://search.emarefa.net/detail/BIM-1031942
Modern Language Association (MLA)
Wang, Zhenyu…[et al.]. Extreme Dynamic Responses of MW-Level Wind Turbine Tower in the Strong Typhoon Considering Wind-Rain Loads. Mathematical Problems in Engineering No. 2013 (2013), pp.1-13.
https://search.emarefa.net/detail/BIM-1031942
American Medical Association (AMA)
Wang, Zhenyu& Zhao, Yan& Li, Fuqiang& Jiang, Jianqun. Extreme Dynamic Responses of MW-Level Wind Turbine Tower in the Strong Typhoon Considering Wind-Rain Loads. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-13.
https://search.emarefa.net/detail/BIM-1031942
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1031942