Collapse analysis of a wind turbine tower with initial-imperfection subjected to near-field ground motions

Structures ◽  
2021 ◽  
Vol 29 ◽  
pp. 373-382
Author(s):  
Yazhou Xu ◽  
Qianqian Ren ◽  
Hui Zhang ◽  
Wenhao Shi
Keyword(s):  
Wind Turbine ◽  
Ground Motions ◽  
Near Field ◽  
Initial Imperfection ◽  
Wind Turbine Tower ◽  
Collapse Analysis

Collapse analysis of wind turbine tower under the coupled effects of wind and near-field earthquake

Wind Energy ◽  
2018 ◽  
Vol 22 (3) ◽  
pp. 407-419 ◽  
Author(s):  
Jian Fan ◽  
Qian Li ◽  
Yanping Zhang
Keyword(s):  
Wind Turbine ◽  
Near Field ◽  
Wind Turbine Tower ◽  
Collapse Analysis

Shaking table test on seismic responses of a wind turbine tower subjected to pulse-type near-field ground motions

2021 ◽  
Vol 142 ◽  
pp. 106557
Author(s):  
Qianqian Ren ◽  
Yazhou Xu ◽  
Hui Zhang ◽  
Xinhao Lin ◽  
Wei Huang ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Shaking Table Test ◽  
Ground Motions ◽  
Near Field ◽  
Shaking Table ◽  
Seismic Responses ◽  
Wind Turbine Tower ◽  
Pulse Type

Seismic response analysis of steel–concrete hybrid wind turbine tower

2021 ◽  
pp. 107754632110075
Author(s):  
Junling Chen ◽  
Jinwei Li ◽  
Dawei Wang ◽  
Youquan Feng
Keyword(s):  
Wind Turbine ◽  
Response Spectrum ◽  
Ground Motions ◽  
Time History ◽  
Seismic Action ◽  
Response Spectrum Method ◽  
Spectrum Method ◽  
Wind Turbine Tower ◽  
Ground Types ◽  
Nonlinear Time History

The steel–concrete hybrid wind turbine tower is characterized by the concrete tubular segment at the lower part and the traditional steel tubular segment at the upper part. Because of the great change of mass and stiffness along the height of the tower at the connection of steel segment and concrete segment, its dynamic responses under seismic ground motions are significantly different from those of the traditional steel tubular wind turbine tower. Two detailed finite element models of a full steel tubular tower and a steel–concrete hybrid tower for 2.0 MW wind turbine built in the same wind farm are, respectively, developed by using the finite element software ABAQUS. The response spectrum method is applied to analyze the seismic action effects of these two towers under three different ground types. Three groups of ground motions corresponding to three ground types are used to analyze the dynamic response of the steel–concrete hybrid tower by the nonlinear time history method. The numerical results show that the seismic action effect by the response spectrum method is lower than those by the nonlinear time history method. And then it can be concluded that the response spectrum method is not suitable for calculating the seismic action effects of the steel–concrete hybrid tower directly and the time history analyses should be a necessary supplement for its seismic design. The first three modes have obvious contributions on the dynamic response of the steel–concrete hybrid tower.

A Circuit Model for Lightning Surge of Wind Turbine Tower with an Internal Conductor

2015 ◽  
Vol 135 (3) ◽  
pp. 200-206 ◽  
Author(s):  
Yoki Ikeda ◽  
Naoto Nagaoka ◽  
Yoshihiro Baba
Keyword(s):  
Wind Turbine ◽  
Circuit Model ◽  
Wind Turbine Tower
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