Design and Analysis of Wind Turbine Blade Hub using Aluminium Alloy AA 6061-T6

Frontiers in Automobile and Mechanical Engineering

Ravikumar, S.^1 ; Jaswanthvenkatram, V.^2 ; Sai Kumar, Y.J.N.V.^2 ; Sohaib, S.Md.^2

Sathyabama University, Tamilnadu, Chennai

600 119, India^1

Department of Mechanical Engineering, Sathyabama University, Tamilnadu, Chennai

600 119, India^2

关键词: ANSYS;    Casting properties;    Design and analysis;    Extreme loads;    Horizontal axis wind turbine blades;    IEC 61400-1 standard;    Spheroidal graphite cast iron;    Wind turbine blades;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/197/1/012044/pdf
DOI  :  10.1088/1757-899X/197/1/012044

来源: IOP

【 摘 要 】

This work presents the design and analysis of horizontal axis wind turbine blade hub using different material. The hub is very crucial part of the wind turbine, which experience the loads from the blades and the loads were transmitted to the main shaft. At present wind turbine is more expensive and weights more than a million pounds, with the nacelle, rotor hub and blades accounting for most of the weight. In this work Spheroidal graphite cast iron GGG 40.3 is replaced by aluminium alloy 6061-T6 to enhance the casting properties and also to improve the strength-weight ratio. This transition of material leads to reduction in weight of the wind turbine. All the loads caused by wind and extreme loads on the blades are transferred to the hub. Considering the IEC 61400-1 standard for defining extreme loads on the hub the stress and deflection were calculated on the hub by using Finite element Analysis. Result obtained from ANSYS is compared and discussed with the existing design.