Comprehensive evaluation model for the magnetic confrontation capability of ships
To accurately evaluate the ability of naval vessels to resist magnetic mines,the paper proposes a magnetic confrontation evaluation model on ships based on an analytical hierarchy process and a fuzzy comprehensive evalua-tion.An index system on the magnetic processing of ships and magnetic mine confrontation evaluation is established on the basis of the analytical hierarchy process.The weights of indexes are obtained using the expert scoring meth-od.The comprehensive confrontation evaluation is implemented by the multilevel fuzzy comprehensive evaluation method,where the membership function adopts a normal distribution function,whereas the fuzzy comprehensive op-erator adopts multiplication and a weighted average operator.The confrontation ability is evaluated before and after magnetic treatment using multiphysics simulation and a magnetic ship model.The results show that the evaluation scores of naval vessels resisting magnetic mines are greatly improved by 35.65 and 21.58 points after magnetic treatment,verifying the rationality and effectiveness of the evaluation model.