3688. Uncertainty Analysis Applied to Two Historic Inclining Experiments


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David Hansch: 3688. Uncertainty Analysis Applied to Two Historic Inclining Experiments. 2017.



Uncertainty analyses were performed on the inclining experiments of two historic passenger liners to determine the drivers of the lightship weight and KG uncertainty. These analyses were further used to determine potential areas to improve the experimental uncertainty as well as areas of the test that can be relaxed without significantly reducing the certainty of the test results. The largest driver in the uncertainty of lightship KG was found to be the uncertainty in displacement as inclined. It is recommended that whenever possible a wedges method of displacement correction be employed to minimize the uncertainty of the test. The wedges method based on actual keel deflection is ideal, but even the parabolic wedges method offers a significant advantage over the 3/4 hog or sag correction method.


SKU: Paper3688 Category: