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Specialist Committees
Committee on Stability in Waves
1. Develop a procedure for tank testing to predict the onset and extent of
parametric rolling.
2. Further develop the procedure 7.5-02-07-02.5 for intact stability testing, to
include extreme motions such as broaching and deck diving, in irregular waves,
wind and breaking waves. Liaise with the Ocean Engineering Committee.
3. Identify experimental techniques and data for validation of time domain
capsize codes, emphasising the selection of the important parameters that
influence the capsizing behaviour of intact and damaged ships. Liaise with the
Ocean Engineering and Seekeeping committees.
4. Assess the state of the art for:
- Practical application of numerical methods for the prediction
of capsizing and experiments for assessment of safety/risk against capsize.
- Make recommendations as to what scientific progress is required
to move stability regulations from those based on hydrostatic calculations
to those based on dynamic predictions, either using capsize codes or
physical model experiments.
5. Establish the importance of the following
issues in predicting the dynamic behaviour of damaged vessels, including sinking
and capsizing, coupling between floodwater dynamics and ship dynamics, influence
of flow coefficients for openings and flooding of complex spaces (multiple
compartments, stair wells, failing watertight doors, etc).
6. Review numerical methods for assessing the length of time to sink or capsize
for damaged passenger ships and associated validation techniques.
7. Continue to review developments (relevant to ITTC) in stability safety
assessment, with special attention on performance and risk-based approach and
relevant developments at IMO.
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