Study on Fluid-structure Interaction Characteristic for Large Scaled Wind Turbine Blade

Liao Mingfu; Li Yan; Wang Qiaoyan

doi:10.13433/j.cnki.1003-8728.2018.0401

Volume 37 Issue 4

Apr. 2018

Turn off MathJax

Article Contents

Article Navigation > Mechanical Science and Technology for Aerospace Engineering > 2018 > 37(4): 493-500

Liao Mingfu, Li Yan, Wang Qiaoyan, . Study on Fluid-structure Interaction Characteristic for Large Scaled Wind Turbine Blade[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(4): 493-500. doi: 10.13433/j.cnki.1003-8728.2018.0401

Citation:

Liao Mingfu, Li Yan, Wang Qiaoyan, . Study on Fluid-structure Interaction Characteristic for Large Scaled Wind Turbine Blade[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(4): 493-500. doi: 10.13433/j.cnki.1003-8728.2018.0401

Citation:

PDF( 1158 KB)

Study on Fluid-structure Interaction Characteristic for Large Scaled Wind Turbine Blade

doi: 10.13433/j.cnki.1003-8728.2018.0401

1.
Institute of Monitoring and Control for Rotating Machinery and Wind Turbines, Northwestern Polytechnical University, Xi'an 710072, China

Received Date: 2017-01-06
Publish Date: 2018-04-05

Abstract

Abstract

With the increasing of large-scaled wind turbines blade size, its flexibility is also growing up. It will be more prone to lead to larger structural deformation phenomena in the operation, nonlinear aeroelastic response, and different power performance and instability problems. To predict the nonlinear aeroelastic responses of large wind turbine, it makes sense to develop a new fluid-structure interaction model. A new fluid-structure interaction model including a nonlinear beam based on the geometrically exactly beam theory and an unsteady aerodynamic model based on vortex flow wake theory is applied to study Fluid-Structure Interaction characteristics of large size blade. For the effects of the flexible blade, weight-reduction techniques and increased size. Respectively, using the method that reduce the blade stiffness and reduce the quality. The effects of the large deformation and light weight on the coupling response were studied. The results show that the reduction of the stiffness will greatly increase the deformation and load of the blade, but the effect of the quality reduction on the blade deformation and load is not obvious. When the stiffness and quality are reduced at the same time, the deformation of the blade which is outside of the impeller plane will substantial increase, resulting in impeller power decrease. The influence of the size of rotor is also studied. And the results show the increased root stress and larger fluctuate of coupled response.
- wind turbines,
- nonlinear aeroelastic,
- geometrically exactly beam,
- vortex flow wake

FullText(HTML)

References(15)

References

[1]	Rasmussen F, Hansen M H, Thomsen K, et al. Present status of aeroelasticity of wind turbines[J]. Wind Energy, 2003,6(3):213-228
[2]	Larsen J W, Nielsen S R K. Non-linear dynamics of wind turbine wings[J]. International Journal of Non-Linear Mechanics, 2006,41(5):629-643
[3]	吕品,廖明夫,尹尧杰.大型风力机叶片非线性流固耦合模型[J].太阳能学报,2017,38(8):2126-2135 Lyv P, Liao M F, Yin Y J. A structural-aerodynamic coupled method for nonlinear aeroelastic response of large-scaled hawt[J]. Acta Energiae Solaris Sinica, 2017,38(8):2126-2135(in Chinese)
[4]	吕品,廖明夫,徐阳,等.基于几何精确梁理论的风力机叶片单元[J].太阳能学报,2015,36(10):2422-2428 Lü P, Liao M F, Xu Y, et al. Beam finite element for wind turbine blade based on geometrically exact beam theory[J]. Acta Energiae Solaris Sinica, 2015,36(10):2422-2428(in Chinese)
[5]	周文平.时间步进自由尾迹方法建模及水平轴风力机气动性能分析[D].重庆:重庆大学,2011 Zhou W P. Horizontal axis wind turbine aerodynamic performance investigation with a time-marching free vortex wake model[D]. Chongqing:Chongqing University, 2011(in Chinese)
[6]	沈昕,竺晓程,杜朝辉.两种自由尾迹模型在风力机气动性能预测中的应用[J].太阳能学报,2010,31(7):923-927 Shen X, Zhu X C, Du Z H. using two free wake methods to predict the aerodynamics performance of hawt[J]. Acta Energiae Solaris Sinica, 2010,31(7):923-927(in Chinese)
[7]	仇永兴.基于自由涡方法的控制过程中风轮气动特性研究[D].北京:华北电力大学,2015 Chou Y X. Investigation of Aerodynamic characteristics of wind turbine rotor under control process based on free-vortex method[D]. Beijing:North China Electric Power University, 2015(in Chinese)
[8]	许波峰,王同光,张震宇,等.基于自由涡尾迹和遗传算法的叶尖小翼气动优化设计[J].空气动力学学报,2013,31(1):132-136 Xu B F, Wang T G, Zhang Z Y, et al. Aerodynamic optimal design of winglet based on free vortex wake method and genetic algorithm[J]. Acta Aerodynamica Sinica, 2013,31(1):132-136(in Chinese)
[9]	Katz J, Plotkin A. Low-speed aerodynamics[M]. 2nd ed. Cambridge:Cambridge University Press, 2001
[10]	吕品,廖明夫,尹尧杰.考虑几何非线性的风力机叶片气弹模型[J].机械科学与技术,2015,34(12):1805-1812 L? P, Liao M F, Yin Y J. An aero-elastic analysis method for wind turbine blades with geometrically nonlinear effect[J]. Mechanical Science and Technology for Aerospace Engineering, 2015,34(12):1805-1812(in Chinese)
[11]	张丰豪.水平轴风力发电机非线性振动与稳定性研究[D].北京:清华大学,2014 Zhang F H. Study on nonlinear vibration and stability of horizontal axis wind turbine[D]. Beijing:Tsinghua University, 2014(in Chinese)
[12]	Ahlström A. Emergency stop simulation using a finite element model developed for large blade deflections[J]. Wind Energy, 2006,9(3):193-210
[13]	Nilsson K, Shen W Z, SØrensen J N, et al. Validation of the actuator line method using near wake measurements of the MEXICO rotor[J]. Wind Energy, 2015,18(3):499-514
[14]	Ahlström A. Influence of wind turbine flexibility on loads and power production[J]. Wind Energy, 2006,9(3):237-249
[15]	廖明夫,Gasch R,Twele J.风力发电技术[M].西安:西北工业大学出版社,2009 Liao M F, Gasch R, Twele J. Wind power technology[M]. Xi'an:Northwestern Polytechnical University Press, 2009(in Chinese)