Journal Home Online First Current Issue Archive For Authors Journal Information 中文版

2019, Volume 14, Issue 3

Abstract

Keywords

Related Research

Back to Top

Frontiers of Mechanical Engineering >> 2019, Volume 14, Issue 3 doi: 10.1007/s11465-019-0524-3

Nonlinear dynamics of a wind turbine tower

. Department of Structures for Engineering and Architecture, University of Naples “Federico II”, 80125 Naples, Italy.. Department of Industrial Engineering, University of Naples “Federico II”, 80125 Naples, Italy.. Department of Architecture and Industrial Design, University of Campania “Luigi Vanvitelli”, 81031 Aversa (Ce), Italy

Accepted: 2018-11-02 Available online: 2018-11-02
HTML17 PDF 7 Collect 0

Next Previous

Abstract

The recent proliferation of wind turbines has revealed problems in their vulnerability under different site conditions, as evidenced by recent collapses of wind towers after severe actions. Analyses of structures subjected to variable actions can be conducted through several methods with different accuracy levels. Nonlinear dynamics is the most reliable among such methods. This study develops a numerical procedure to obtain approximate solutions for rigid-plastic responses of structures subjected to base harmonic pulses. The procedure’s model is applied to a wind turbine tower subjected to inertial forces generated by harmonic ground acceleration, and failure is assumed to depend on the formation of shear hinges. The proposed approach provides an efficient representation of the post-elastic behavior of the structure, has a low computational cost and high effectiveness, and uses a limited number of mechanical parameters.

Related Research