Research on the strain of the blade of wind turbine under the load of Aerodynamic force centrifugal force
This paper discussed the strain of the blade of the wind turbine caused by the aerodynamic force,the centrifugal force and the coupling of the aerodynamic force and the centrifugal force using the finite element theory.The results showed that: The maximum strain was located in the root and radial 0.65 R of the blade under the aerodynamic force,and the strain in root was bigger than that in 0.65 R.The maximum strain was located in the root under the centrifugal force,the strain was decreased from root to tip.The strain was shown a similarity trend to the effect of the centrifugal force under the coupling of the aerodynamic force and the centrifugal force.And with the increasing of rotor speed,the strain was value was increase.The study also found that: the strain caused by the aerodynamic force may greater than that caused by the centrifugal force in low rotating speed.But with the increasing of rotating speed,the increasing value under the centrifugal force was far greater than that under the aerodynamic force.The strain value caused by the coupling of the aerodynamic force and the centrifugal force was not equal to the sum of the centrifugal force and aerodynamic force.
Wind turbine Blade Aerodynamic force Centrifugal force Strain
Wei Hai-jiao Wang Jian-wen Ma Jian-long Dong Bo
School of Energy & Power Engineering,Inner Mongolia University of Technology,Huhhot,InnerMongolia,Ch School of Energy & Power Engineering,Inner Mongolia University of Technology,Huhhot,InnerMongolia,Ch
国内会议
上海
英文
1-7
2014-04-08（万方平台首次上网日期，不代表论文的发表时间）