Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Structural Engineering and Mechanics Volume 36, Number 5, November30 2010 , pages 599-624 DOI: https://doi.org/10.12989/sem.2010.36.5.599 |
|
|
|
Basis of design and numerical modeling of offshore wind turbines |
||
Francesco Petrini, Hui Li and Franco Bontempi
|
||
| Abstract | ||
| Offshore wind turbines are relatively complex structural and mechanical systems located in a highly demanding environment. In the present paper the fundamental aspects and the major issues related to the design of these special structures are outlined. Particularly, a systemic approach is proposed for a global design of such structures, in order to handle coherently their different parts: the decomposition of these structural systems, the required performance and the acting loads are all considered under this philosophy. According to this strategy, a proper numerical modeling requires the adoption of a suitable technique in order to organize the qualitative and quantitative assessments in various sub-problems, which can be solved by means of sub-models at different levels of detail, for both structural behavior and loads simulation. Specifically, numerical models are developed to assess the safety performances under aerodynamic and hydrodynamic actions. In order to face the problems of the actual design of a wind farm in the Mediterranean Sea, in this paper, three schemes of turbines support structures have been considered and compared: the mono pile, the tripod and the jacket support structure typologies. | ||
| Key Words | ||
| offshore wind turbines; systemic approach; numerical modeling; environmental actions; structural analysis and design. | ||
| Address | ||
| Francesco Petrini: School of Engineering, University of Rome \"La Sapienza\", Via Eudossiana 18, 00184 Rome, Italy Hui Li:Harbin Institute of Technology, P.O.B. 2537, 204 Haihe Road, Harbin, 150090, China Franco Bontempi: School of Engineering, University of Rome \"La Sapienza\", Via Eudossiana 18, 00184 Rome, Italy | ||