Assessment of the impact of the ship's properties on its environmental safety
The article states that the environmental safety of a vessel is determined by its tightness - the main factor affecting the possible environmental consequences in the event of accidents and incidents. This factor is one of the characteristics of the ship's properties, including ensuring buoyancy, stability, seaworthiness and strength. The connection of these characteristics with the tightness of the housing and their impact on the environmental situation is considered. To assess the environmental safety of a vessel in the function of preserving its integrity, it is proposed to use the method of paired comparisons to determine the coefficients of importance of various factors, as well as an additive convolution of the generalized function of technical utility (efficiency). The advantages of the method of paired comparisons in determining the coefficient of importance of characteristics, which simplifies the decision-making on the preference of certain goals or indicators, are formulated. It is shown that one of the most convenient ways to construct the utility function is the generalized Harrington desirability function. As part of the assessment of the impact of the ship's properties on environmental safety, the expediency of using the technical utility indicator in tabular form of the Harrington function, in analytical form - in the form of the Harrington desirability function with a negative gradient and in the form of a relay function of technical utility was confirmed.