Abstract
As wind turbine blades are getting softer and thinner, the demand for their capability of vibration suppression is improving day by day. Drawing from bamboo’s quick recovery to its former position and mimicking the microstructure of bamboo wall, this paper puts forward a porous damping structure on the blade and sets up its mathematical model. The formula for its structural loss factor is deduced on the vibration theory. Then numerical simulation method is adopted to investigate its damping performance on one wind turbine blade by ABAQUS. The results indicate that the vibration damping property of the wind turbine blade with the porous damping structure is significantly increased. The porous damping structure dissipates more heat very quickly and its single material also displays advantages over composite material. This paper provides a reference for the design of highly efficient damping structures.
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Acknowledgments
The authors wish to express their sincere thanks to Liu Shizhong of Damping Vibration Attenuation Laboratory of Taiyuan University of Science and Technology for his general guidance and technical advice, Shanxi Province Science and Technology Department and Education Department for their funding support.
Funding
This study was funded by Shanxi Basic Research for Application Project (No: 201901D211293) and Shanxi Scientific Innovation Project (No: 2020L0339).
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All authors contributed to the study conception and design, material preparation, data collection and analysis. The first draft of the manuscript was written by Meng Jie and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Meng, J., Sun, D. Research on vibration suppression of wind turbine blade with a multi-layer porous damping structure based on bamboo wall microstructure. J Braz. Soc. Mech. Sci. Eng. 43, 153 (2021). https://doi.org/10.1007/s40430-021-02888-8
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DOI: https://doi.org/10.1007/s40430-021-02888-8