EVALUATION OF WIND AND WAVE ENVIRONMENT ADAPTABILITY OF SHIPS

The environment adaptability of ships, especially integrated sailing performance in rough sea, is very important. In this paper an evaluation index system and a method of wind and wave environment adaptability of ships were proposed. The relative importance of the given indices was analyzed, and the weighting coefficients of the indices were given by estimation matrices. Also, an evaluation equation was developed. The AHP method and the method based on fuzzy theory were used for evaluating the environment adaptability of a hybrid monohull and a round bilge monohull. Furthermore, the effect of different models and weighting coefficients given by different matrices on the evaluation results was analyzed. The research indicated that the selection of evaluation parameters had a great influence on the evaluation results, and defining of the weighting coefficients was a difficult, but also a critical point for the evaluation of environment adaptability of ships.