Finite Element Analysis of Top Flanged Joint System of High Power Level Wind Turbine

Abstract:

This paper uses non-linear finite element method to structurally analyze top flanged joint system of a MW wind turbine, sets up a finite element model of top flanged joint system by applying finite element analysis software MSC.Marc/Mentat, makes an analysis on the stress distribution of key components of top flanged joint system under ultimate operating mode based on applying appropriate boundary condition and loads, and carries out security examination on top flange and joint bolt. Result shows that key components of the top flanged joint system can satisfy design requirements, and it has a guiding role for rational design and performance improvement of large scale wind turbine flange, which can be used in structural analysis of other flanged joint systems, and has certain practical value in the aspect of engineering.

• Periodical: Advanced Materials Research (Volumes 591-593)
• Pages: 728-732
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.591-593.728
• Online since: November 2012
• Authors: Rong Zhang
• Keywords: Finite Element Analysis (FEA), Top Flanged Joint System, Wind Turbine (WT)

References

[1] Z.H. Liu. Craft of Welding Tower Flange of Wind Turbines : Welding, Vol. 40 (2007) No.9, p.46 (in Chinese)

[2] B. Tony: Wind Energy Technology (Science Press, China 2007), p.118

[3] Germanischer Lloyd WindEnergie GmbH: Guideline for the Certification of Wind Turbines, 2010.

[4] Q.F. Wang and F.L. Huang, Study on the calculation methods of large-scale wind turbines yaw joint system based on ANSYS : Mechanical Strength, Vol. 33 (2011) No.4, p.607 (in Chinese)

[5] H.X. Li, Yi.C. Hu and J.Z. Zhang. Study on the simulation of bolt pre-tightening force with ANSYS: Shandong University of Science and Technology, Vol. 25 (2006) No.1, p.57 (in Chinese)

[6] X.l. Wang and R.P. Zhou. The remodel design of flange thrust bearing based on finite element method: Jiangsu Shipping, Vol. 24 (2007) No.5, p.17 (in Chinese)

[7] H.Y. Bai: Finite Element Analysis of Megawatt-level Wind Turbines Tower ((Mechanical Engineering, Taiyuan University of Technology, China 2010), p.47

[8] H.Y. Ye: Design, Operation and Maintenance of Wind Generating System (Electronic Industry Press, China 2010), p.6

[9] H.H. Chen and J. Yang: Newly Organized Case Course of Marc Finite Element (Engineering Industry Press, China 2007), p.183

[10] Y. Liu and J.B. Liu: Finite Element Analysis and Application(China Electric Power Press, China 2008), p.149