Research on vibration suppression of wind turbine blade based on bamboo wall three-layer damping structure
| Autor: | Dagang Sun, Jie Meng |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Airfoil
Materials science Turbine blade lcsh:Mechanical engineering and machinery 020209 energy Loss factor 02 engineering and technology Bending Displacement (vector) law.invention Physics::Fluid Dynamics law 0202 electrical engineering electronic engineering information engineering lcsh:TJ1-1570 General Materials Science bionic three-layer bamboo structure Computer simulation business.industry Mechanical Engineering Structural engineering 021001 nanoscience & nanotechnology wind turbine blade structure Vibration structural loss factor Flutter 0210 nano-technology business property of vibration suppression |
| Zdroj: | Journal of Vibroengineering, Vol 19, Iss 1, Pp 87-99 (2017) |
| ISSN: | 2538-8460 1392-8716 |
| Popis: | As wind turbine blades tend to be long and narrow, the demand for its properties of bending resistance and vibration suppression is improving day by day. Mimicking the three-layer structure (the outer skin, the middle, the inner skin) of bamboo, this paper puts forward a new damping structure with the blade as a basic layer, one transitional layer and one free damping layer added to it. The formula of the structural loss factor is deduced by vibration differential equations. Then combined with the formula, the models of airfoil flutter and damping vibration suppression and related data, the numerical simulation is done using Matlab/Simulink Software. Consequently, the comparison diagrams of swing and wave velocity responses and their displacement responses between conditions with and without the new damping structure are gained, which indicates that the property of vibration suppression of wind turbine blades with the new damping structure is significantly improved. |
| Databáze: | OpenAIRE |
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