Untersuchungen zur statischen Effizienz polygonaler und kreisförmiger Stahltürme für Windenergieanlagen
| Author(s): |
Carl Richter
Daniel Pak Markus Feldmann Milan Veljković |
|---|---|
| Medium: | journal article |
| Language(s): | German |
| Published in: | Stahlbau, December 2015, n. 12, v. 84 |
| Page(s): | 1004-1009 |
| DOI: | 10.1002/stab.201510342 |
| Abstract: |
Economic feasibility studies on polygonal and circular towers for wind turbines.Since 2005 numerous studies regarding functional and cost optimisation of circular and polygonal steel wind towers are conducted within the scope of the European research projects HISTWIN (High-Strength Steel Tower for Wind Turbines, 2006-2009) and HISTWIN 2 (High steel tubular towers for wind turbines, 2010-2013). The maximum hub height of wind turbines built with tubular steel towers is limited to approximately 100 to 120 m. This is due to restrictions regarding the maximum tower foot diameter to allow for road transportation logistics. Within the framework of the European research projects a contribution to solving that problem was made by introducing an innovative friction connection, allowing for a vertical segmentation of the tower. By use of this friction connection instead of a conventional ring flange connection, the critical design detail changes from fatigue of the ring flange connection to stability of the tower shell. The main focus of this article lies on the investigations of the possible increase of stability resistance and potential material savings by using polygonal cross sections instead of circular cross sections. |
| Keywords: |
buckling analysis design resistance friction connection load bearing capacity tubular steel tower polygonal cross-section
|
| Available from: | Refer to publisher |
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data sheet - Reference-ID
10072614 - Published on:
18/12/2015 - Last updated on:
18/12/2015
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