STATISTICAL ANALYSIS OF FISHING VESSEL DECK EQUIPMENT ELEMENTS FAILURES

Abstract

The main breakdowns that may occur during the operation of the deck equipment of a fishing vessel are presented in the paper. These breakdowns can lead to devices failure, serious accidents, which, in turn, entail a decrease in the operational and economic efficiency of the ship’s auxiliary power plant and the ship as a whole. Therefore, in order to improve the maintenance system of deck equipment, it is necessary to improve the methodology for predicting reliability based on structural indicators of elements at the design stage. One of the methods for solving the task is to obtain, accumulate and statistically summarize information on the operational reliability of units, parts and equipment as a whole. For risk analysis during the operation of ship equipment, at the first stage, a classification of hazards based on available data and existing developments of technical means is required. To estimate the average resource and other indicators of the durability of ship mechanisms, it is necessary to know the parameters of the random factors distribution. This will allow, under different laws of parameters distribution, to predict the resource distribution by statistical modeling. The assessment results of the failures of the deck lifting equipment of a fishing vessel are considered in the paper. It is revealed that mooring, anchor and trawl winches, for which operating time data are given, are subject to the greatest failures. The probability of no-failure operation of parts is calculated and its graphical distribution is presented. The results obtained in this work contribute to the further continuation of research in the field of ensuring the required level of performance of elements of deck mechanisms.