Study On Operation Risk Model Of Enclosed Space On Bulk Carrier Based On HHM

In the international shipping industry,bulk carrier transportation plays an important role.However,with the development of bulk carriers,the accidents of enclosed space of bulk carriers also occur constantly.Although all departments of the shipping industry have made great efforts,the accidents still cannot be eliminated,and even become more serious.Therefore,it is particularly important to study the safety of bulk carriers operating in enclosed space.Based on the above background,this paper mainly carried out the following work:1.In this paper,the operation of bulk carrier in closed place is taken as the research object,and a large number of data of accidents of bulk carrier in closed place at home and abroad,previous research results in literature,risk factors involved in the operation process and steps of bulk carrier in closed place and expert discussion are collected and used for reference,and the risk factors before and during the operation of closed place are identified.The risk factors of safety evaluation are comprehensively identified by hierarchical holographic modeling method,and the risk index model of bulk carrier enclosed space operation is established.2.Combined with the actual situation of the ship and the questionnaire survey of experts,The value of the index is determined by the weighted method combining improved Set Pair Analysis and Analytic Hierarchy Process,3.The comprehensive evaluation model for the operation safety of bulk carriers in enclosed space based on Set Pair Analysis Theory is constructed from the perspective of "similarity,difference and opposition".4.Through an example,the evaluation model is verified to the correctness and accuracy.The established comprehensive evaluation model can provide reference for the study of operational safety in enclosed space,as the theoretical basis for seafarers’ training,a reference for maritime authorities or companies to strengthen the safety management of seafarers,and also provide reference for PSC,which is of great significance for improving the operational safety of seafarers.