船型試験における不確かさ解析法

概要

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Uncertainty analysis has been considerably demanded so as to estimate the reliability of the experiments. Thus, it is conducted in various fields of engineering for explicit description of confidence level. Recently, ITTC(International Towing Tank Conference)^<1)> began to concentrate on the issues of towing tank test quality, and the uncertainty analysis has been applied to the tests. This paper concerns the uncertainty analysis applied to the ship model test program with basis of ANSI/ASME Performance Test Code.^<2)> The items of model tests presented here are resistance test, self-propulsion test, wake measurement and pressure measurement on the hull surface, which are the fundamental test items in ship hydrodynamics. In order to precisely predict the engine power requirement and other values, we need to clarify the accuracy of tank tests. Further merit of the uncertainty analysis exists in that we can trace causes of errors through the process of analysis. This means that we can reduce dominant errors and can improve the quality of test results. In the following, the procedure of the uncertainty analysis used is presented and applied to towing tank tests. The results of the analysis are then discussed.
独立行政法人海上技術安全研究所の論文
2000-09-13