水面舰船风浪环境适应性模糊综合评价方法

A method of fuzzy comprehensive evaluation of the adaptability of surface ships in stormy wave environments

为了研究舰船实际航行中的综合性能,综合船舶原理的多个学科对水面舰船风浪环境适应性提出一套全面的评价指标,采用层次分析法和熵值法的主客观综合方法得到各指标权重,并采用模糊综合评价模型作出最终评价。综合评价过程中通过选用半岭型函数将数据转化为百分制和选用正态分布函数确定隶属度使得评价结果更加合理。通过以某船型优化为算例的风浪环境适应性综合评价结果表明该评价方法具有一定的应用价值。

In order to study the integrative performance of a ship in actual navigation, a set of overall evaluation indices of the adaptability of the ship in stormy wave environments were proposed by integrating a multidisciplinary ship theory. The analytical hierarchy process and entropy were used to obtain the index weights. Then the final evaluation was made by using the fuzzy comprehensive evaluation model. The data were converted into percentiles by use of the half-ridge-like function and the membership degree was determined by use of the normal distribution function, which made the evaluation results more reasonable. Finally, an example of evaluating the adaptability of ships in stormy wave environments indicates that this method has a certain application value.