STAB2005_Design Wave Elevations Leading to Extreme Roll Motion

Alford, L.K.§, Troesch, A.W., and McCue, L.S., "Design wave elevations leading to extreme roll motion," 8th International Ship Stability Workshop, Istanbul, Turkey, October, 2005.


Design Wave Elevations Leading to Extreme Roll Motion
Laura K. Alford, Naval Architecture and Marine Engineering, University of Michigan, lslavice@engin.umich.edu
Armin W. Troesch, Naval Architecture and Marine Engineering, University of Michigan
Leigh S. McCue, Aerospace and Ocean Engineering, Virgina Tech


ABSTRACT
Response-tailored wave trains are created for use in numerical capsize experiments. The wave trains are tailored to produce a speci¯ed, linear, large response by considering the statistical distribution of the response phases in the neighborhood of a typical maximum response. The statistical distribution is seen to be non-uniform. Using a non-uniform distribution for the random phases, design wave elevations leading to extreme rolling are created for a box barge and used as input to a nonlinear seakeeping code. Several wave trains also designed to lead to extreme rolling are produced for a high speed containership for a range of conditions.

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