Single ship safety evaluation method for ro-ro passenger ships

Abstract

The invention relates to a ship safety assessment method, in particular to a single vessel safety assessment method for a roll on-roll off passenger ship. The single vessel safety assessment method includes the following steps: step 1, risk factors are classified and comprise attribute factors, accident factors, hidden danger factors, honesty factors and environment factors; and step 2, the classified risk factors are combined and subject to a value assignment process, and the risk factors are combined according to the formula: R=Max [Ac, (Di*Qu*Pr*En)], wherein the R is a total risk value, the Ac is an accident risk value, the Di is a hidden danger risk value, the Qu is an attribute risk factor, the Pr is an honesty risk factor, and the En is an environment risk factor. According to the single vessel safety assessment method, existing main data resources which can represent the risk of the roll on-roll off passenger ship in the Bohai Gulf are fully utilized, the reasonable formula is designed and established based on a scientific method, the single vessel safety conditions of the roll on-roll off passenger ship in the Bohai Gulf are measured and calculated to obtain a calculated result, and therefore the single vessel safety conditions of the roll on-roll off passenger ship in the Bohai Gulf are described and assessed according to the calculated result, and decision reference and a basis are provided for relevant departments.

Description

technical field [0001] The invention relates to a safety assessment method for a ship. Background technique [0002] In the prior art, the safety evaluation of ro-ro passenger ships usually adopts the following methods: [0003] 1. Fuzzy mathematics: Fuzzy mathematics is a new branch of mathematics that uses mathematical methods to study and deal with fuzzy phenomena, based on the theory of "fuzzy sets". Fuzzy mathematics provides a new method to deal with uncertainty and inaccuracy, and is a powerful tool to describe the processing of fuzzy information in the human brain. It can be used in both "hard" and "soft" sciences. There are many branches of fuzzy mathematics, which are widely used, such as fuzzy programming, fuzzy optimization design, fuzzy comprehensive evaluation, fuzzy cluster analysis, fuzzy sorting, etc. [0004] 2. Analytic Hierarchy Process: It refers to taking a complex multi-objective decision-making problem as a system, decomposing the goal into multipl...

AI Technical Summary

Problems solved by technology

[0011] 1. The research on the safety evaluation of a certain link of the ro-ro passenger ship only focuses on some subsystems of the ro-ro passenger ship;

[0012] 2. The research on the safety evaluation of the ro-ro passenger ship system has not accurately and completely reflected the real situation of the safety of the ro-ro passenger ship;

[0013] 3. The index data involved in the existing method is difficult to obtain and the evaluation period is long. Many indicators need to be assigned subjectively by humans, the cost is too high, the evaluation results are unstable, and it is not feasible in actual work

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