Analysis And Control Of Ship Operating Cost

Shipping industry is high-risk industry needs huge investment.International economy continues to weaken,leading to a slow development of shipping industry.In order to improve the shipping enterprise's competitive power,it is necessary controlling operating costs of the ship.In this paper.Study the operating costs of the cargo ship which belongs to long-endurance group.The research content is as follows:(1)By analyzing the concept of operation cost of the ship,determine the main influencing factors of operation cost of the ship.Among them,the internal factors include fuel costs,maintenance costs and management cost.The external factors include global economic situation and the PSC inspection.First of all,the basic parameters of the target ship are introduced,and then the proportion of the operating costs of the target ship to carry out the proportion of fuel costs and maintenance costs in the ship operating costs were 28% and 23%.(2)In order to control fuel costs,propose two methods which are speed optimization and fuel supply method.Design an economic speed data acquisition system,collect the relevant data such as fuel consumption,rotational speed and navigation environments.Based on economic speed calculation theory,set up a mathematical model.Then use MATLAB to calculate the minimum fuel consumption in unit distance when the different navigation environments,provide powerful proof for control of fuel costs.Establish a fuel supply model,then calculate the smallest fuel demand,improve the freight volume of the ship,maximize the shipping efficiency.By using economic speed model and the fuel supplies model reduce the fuel cost.(3)By analyzing three years of maintenance records of the ship,introduce the maintenance expenses in detail.Results show that the ship is maintained in repair factory has the highest maintenance cost.Therefore,it is very important to select reasonable repair factory.Based on the target ship maintenance cost control method,establish repair factory location selection model.Based on ship diagnosis data,establish the maintenance scheme decision-making model which can automatically choose the optimal maintenance scheme.In the actual validation,under mode A can save maintenance costs.Based on the regulation of the ship's spare parts management,establish a ship's spare parts management optimization model.Optimize the O type sealing ring's inventory by using ship's spare parts management optimization model.The results show that the model effectively in reducing the sealing ring of the inventory,reduce the spare parts cost.