Mitigation of ice loading: Feasibility study of semi-active solution

Arkadiusz Mroz, Tuomo Kärnä

Research output: Book/ReportReport

Abstract

Conical structures are commonly used in order to mitigate the ice loading on off shore structures. However a need for further mitigation of the structure response is recognised. This report introduces a new, semi-active solution aiming at mitigation of ice forces acting on off shore towers. New interface between the cone and tower is introduced. So-far-used rigid connection is replaced with compliant connection using adaptive springs and dampers. Adaptation procedure is introduced in order to optimise the effect. The solution aims at decreasing of the horizontal component of ice loading and does not affect the period of excitation. The feasibility study of new solution effectiveness is performed. Simulations are done using ABAQUS/Standard software.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages35
ISBN (Electronic)951-38-6591-6
Publication statusPublished - 2005
MoE publication typeNot Eligible

Publication series

SeriesVTT Working Papers
Number39

Keywords

  • ice loading
  • conical structures
  • semi-active control
  • off-shore structures
  • simulation
  • wind turbine structures
  • towers
  • cone structure
  • vibrations
  • fatique control

Fingerprint Dive into the research topics of 'Mitigation of ice loading: Feasibility study of semi-active solution'. Together they form a unique fingerprint.

  • Cite this

    Mroz, A., & Kärnä, T. (2005). Mitigation of ice loading: Feasibility study of semi-active solution. VTT Technical Research Centre of Finland. VTT Working Papers, No. 39 http://www.vtt.fi/inf/pdf/workingpapers/2005/W39.pdf