Ship Propulsion Shafting Bearing Load Calculation And Analysis Of System Development

With the development of Marine engineering equipment and high-tech ships,ships tend to be large and high-speed.Ship propulsion shafting as an important component of ship power plant,to ensure the normal and stable operation is the key to the safe navigation of ships.Carry out research ship propulsion shafting operational changes of state,developed specifically for ship propulsion shafting bearing load calculation and analysis system,has a very significant engineering significance and practical value for the efficient and safe operation of the ship power system concerned.The research contents and research results of this paper are as follows:(1)Aiming at the problem of bearing load calculation in static reasonable alignment,the inherent defects of the standard genetic algorithm are improved to improve the solving efficiency of the algorithm,and a bearing load calculation method with bearing specific pressure as the design variable is proposed.Compared with traditional trial and error method and standard genetic algorithm,the rationality of bearing load distribution obtained by this method is verified.(2)Taking the ship propulsion shaft-oil film-bearing structure system as the research object,the mechanical and geometric coupling relationship between bearing load,bearing oil film force and journal position under steady-state conditions is established.Finally,through a ship example,the variation law of the bearing load,bearing oil film force and journal position with the change of the rotating condition is analyzed.(3)Based on the mathematical model of ship propulsion shaft bearing load calculation,this paper uses C#.NET as the core programming language through Visual Studio development platform.It is developed in cooperation with MATLAB and Office software environment,and integrated into the ship propulsion shaft bearing load calculation and analysis system software.The software is easy to operate and has good man-machine interaction.The reliability of the software is verified by a ship calculation example,which has certain reference significance for shaft alignment calculation.