Mechanism Design and Modal Analysis of Vertical-Axis Tidal Turbine

Abstract:

A vertical-axis tidal turbine was designed in the paper. Modal analysis of the vertical-axis tidal turbine was investigated based finite element software analysis method. Finite element simulation model for modal analysis of the accelerator and the whole tidal turbine were built by appropriate structure simplification. And, the anterior 10 ranks of natural frequencies and corresponding mode shapes were calculated. Modal analysis results show that the natural frequency of the turbine away from the frequencies of tidal current incentive, impeller incentive and generator rotor incentive, so the resonance phenomenon does not exist in the turbine of the paper. Also, the modal analysis results show that the input of the accelerator and leaves of impeller have a large deformation, and the stiffness of the input shaft and spokes and leaves of impeller should be increased.

• Periodical: Key Engineering Materials (Volume 572)
• Pages: 433-436
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.572.433
• Online since: September 2013
• Authors: Wen De Zhao, Yi Li, Yan Tao Li
• Keywords: Mechanism, Modal Analysis, Vertical-Axis Tidal Turbine

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