DOI QR코드

DOI QR Code

Comparative structural analysis of lattice hybrid and tubular wind turbine towers

  • Kumaravel, R. (School of Mechanical Engineering, Sathyabama Institute of Science and Technology) ;
  • Krishnamoorthy, A. (School of Mechanical Engineering, Sathyabama Institute of Science and Technology)
  • 투고 : 2019.01.03
  • 심사 : 2019.07.30
  • 발행 : 2020.01.25

초록

This paper presents a comparative structural analysis of lattice hybrid tower with six legs with conventional tubular steel tower for an onshore wind turbine using finite element method. Usually a lattice hybrid tower will have a conventional industry standard 'L' profile section for the lattice construction with four legs. In this work, the researcher attempted to identify and analyze the strength of six legged lattice hybrid tower designed with a special profile instead of four legged L profile. And to compare the structural benefits of special star profile with the conventional tubular tower. Using Ansys, a commercial FEM software, both static and dynamic structural analyses were performed. A simplified finite element model that represents the wind turbine tower was created using Shell elements. An ultimate load condition was applied to check the stress level of the tower in the static analysis. For the dynamic analysis, the frequency extraction was performed in order to obtain the natural frequencies of the tower.

키워드

참고문헌

  1. Alvarez-Anton, L., Koob, M., Diaz, J. and Minnert, J. (2016), "Optimization of a hybrid tower for onshore wind turbines by building information modeling and prefabrication techniques", SpringerOpen Visualization in Engineering, 4.3.
  2. Bazeos, N., Hatzigeorgiou, G.D., Hondros, I.D., Karabalis, D.L. and Beskos, D.E. (2002), "Static, seismic and stability analysis of a prototype wind turbine steel tower", Eng. Struct., 24(8), 1015-1025. https://doi.org/10.1016/S0141-0296(02)00021-4.
  3. Cook, R.D. (1995), Finite Element Modeling for Stress Analysis, John Wiley and Sons Inc., New Jersey, USA.
  4. Das, A. and Kumar, S. (2015), "Modelling and analysis of lattice towers for wind turbines", Int. J. Sci. Res., 4(5), 999-1003.
  5. DIN EN (1993), Design of Steel Structures - Part 1-6: Strength and Stability of Shell Structures.
  6. Euro code 1: EN 1991-1-4 (2005), General Actions - Wind Actions, European Commission for Standardisation.
  7. Euro code 3: EN 1998-1-8 (2005), Design of Joints, European Commission for Standardisation.
  8. Gencturk, B., Attar, A. and Lort, C. (2015), "Selection of an optimal lattice wind turbine tower for a seismic region based on the cost of energy", KSCE J. Civil Eng., 19(7), 2179-2190. https://doi.org/10.1007/s12205-014-1428-8
  9. GL Guidelines (2010), Guideline for the Certification of Wind Turbines, Germanischer Lloyd Wind Energy GmbH, Germany.
  10. Guidelines for Design of Wind turbines (2002), DNV/Riso, Denmark.
  11. Hau, E. (2006), Wind Turbines: Fundamentals Technologies and Application, Springer-Verlag, Germany.
  12. IEC 61400-01, Ed.3 - Part 1 (2005), Wind Turbine Generator System - Design Requirements. International Electrotechnical Commission, Geneva, Switzerland.
  13. Jovasevic, S., Mohammad, R.S.M., Rebelo, C., Pavlovic, M. and Veljkovic, M. (2017), "New lattice tubular tower for onshore WEC", Sci. Direct Proc. Eng., 199, 3236-3241.
  14. Lavassas, I., Nikolaidis, G., Zervas, P., Efthimiou, E., Doudoumis, I.N. and Baniotopoulos, C.C. (2003), "Analysis and design of a prototype of a steel 1-MW wind turbine tower", Eng. Struct., 25(8), 1097-1106. https://doi.org/10.1016/S0141-0296(03)00059-2.
  15. Muskulus, M. (2012), "The Full-height lattice tower concept", Energy Proc., 24, 371-377. https://doi.org/10.1016/j.egypro.2012.06.120.
  16. Negm, H.M. and Maalawi, K.Y. (2000), "Structural design optimization of wind turbine towers", Comput. Struct., 74, 649-666. https://doi.org/10.1016/S0045-7949(99)00079-6
  17. Uys, P.E., Farkas, J., Jarmai, K. and Van Tonder, F. (2007), "Optimization of a steel tower for a wind turbine structure", Eng. Struct., 29(7), 1337-1342. https://doi.org/10.1016/j.engstruct.2006.08.011.
  18. Voss, S. (2011), Adapter Configuration for a Wind Tower Lattice Structure, Inventor: Stefan Voss, US Patent document no. US20120023860A1.
  19. Zou, L., Liang, S., Li, Q.S., Zhao, L. and Ge, Y. (2008), "Investigation of 3D dyamic wind loads on lattice towers", Wind Struct., Int. J., 11(4), 323-340. https://doi.org/10.12989/was.2008.11.4.323.