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Natural Characteristics Research of MW Wind Turbine Tower

並列摘要


The natural characteristics calculation modal of the first step bending and torsional vibration was established based on Rayleigh method for MW wind turbine tower. The influence of the diameter, thickness, taper angle, nacelle and rotor mass, offset of mass on the inherent characteristic of tower was studied. Finite element method (FEM) was also used to calculate the inherent characteristic of tower and the FEM results showed good agreement with Rayleigh method results. Finally, the influence of dimension and position of the door on the basic frequency was investigated by means of FEM.

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