Numerical Study of a Moored Structure in Moving Broken Ice Driven by Current and Wave

[+] Author and Article Information
Biao Su

SINTEF Ocean, Postboks 4762 Torgard, N-7465 Trondheim, Norway

Karl Gunnar Aarsæther

SINTEF Ocean, Postboks 118, N-9252 Tromsø, Norway

David Kristiansen

SINTEF Ocean, Postboks 4762 Torgard, N-7465 Trondheim, Norway

1Corresponding author.

ASME doi:10.1115/1.4042263 History: Received December 25, 2017; Revised October 19, 2018


This paper presents a numerical model intended to simulate the mooring force and the dynamic response of a moored structure in drifting ice. The mooring lines were explicitly modelled by using a generic cable model with a set of constraint equations providing desired structural properties such as the axial, bending and torsional stiffness. The 6 degrees-of-freedom (DOF) rigid body motions of the structure were simulated by considering its interactions with the mooring lines and the drifting ice. In this simulation, a fragmented ice field of broken ice pieces could be considered under the effects of current and wave. The ice?ice and ice?structure interaction forces were calculated based on a viscoelastic-plastic rheological model. The hydrodynamic forces acting on the floating structure, mooring line and drifting ice were simplified and calculated appropriately. The present study, in general, demonstrates the potential of developing an integrated numerical model for the coupled analysis of a moored structure in a broken ice field with current and wave.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In