Suppressing flutter analysis of wind turbine blades based on co-curing damping layer structure

Sun Dagang;Li Zhanlong;Han Binhui;Zhang Xin;Wang Jun

Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (19) : 93-99.

PDF(2191 KB)
PDF(2191 KB)
Journal of Vibration and Shock ›› 2013, Vol. 32 ›› Issue (19) : 93-99.
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Suppressing flutter analysis of wind turbine blades based on co-curing damping layer structure

  • Sun Dagang1, Li Zhanlong1, Han Binhui1,2, Zhang Xin1, Wang Jun1
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Abstract

To improve large wind turbine blades’ suppressing flutter capacity, damping blade concept was proposed-blades with laminated composites with embedded viscoelastic layer; damping blades structural loss factor was derived based on energy method. Based on a 2 500kW turbine blade parameters and ONERA nonlinear aerodynamic theory, numerical simulation was conducted between ordinary and damping blades under four conditions(start up wind speed, rated wind speed, safe wind speed and limited wind speed). The results show that damping blades can significantly improve blades stability.

Key words

wind turbine / co-curing / damping blades / damping suppressing flutter

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Sun Dagang;Li Zhanlong;Han Binhui;Zhang Xin;Wang Jun. Suppressing flutter analysis of wind turbine blades based on co-curing damping layer structure[J]. Journal of Vibration and Shock, 2013, 32(19): 93-99
PDF(2191 KB)

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