The Research Of The Dynimic Simulation And The Safety Of The Securing System Of The Vehicle On Board RO-RO Ships

The shifting of cargo on board Ro-Ro ships has been identified as a contributory facter for the significant number of Ro-Ro ships casualties, worldwide, over the last decade. It is the focus of the discussion of IMO and most Ro-Ro flag states when they investigated all means to enhance the safety of Ro-Ro ferris. With the recent rapid development of the Ro-Ro shipping in China, it is urgent for Chinese maritime authority to develop the code of practice for the stowage and securing of vehicles on Ro-Ro ships. And doubtlessly, the key to this problem is the quantitative analysis of the cargo operation on Ro-Ro ships.The thesis, which is divided into six diapers, review the history of the Ro-Ro ships and the stipulation of IMO concerning the securing of cargo on Ro-Ro ships. The urgency for China to develop the technology standard for the vehicle securing on Ro-Ro ships is provided and reason is discussed. The conditions of the lashing system on board Chinese Ro-Ro ships are investigated and the western reseach results of the same problem are introduced and compared. In chapter 3, mechanical and mathematical models for the estimation of the loads in the lashing system of road vehicles on board Ro-Roships are developed.The result is calculated and simulated by the computer program which was provided by Professor S.Turbull from Oxford University, Britain. The models of Ro-Ro ships and vehicles on board come from the most types on the seaway in Bohai Strait. The construction of the models has been based on such theories as Theoretical Mechanics, Advanced Mathematics, Space Analytic Geometry, the Theory of Ship and Sea-keeping Theory.In the last part of the thesis, the discussion is fully developed for the result of the simulation and the application of the model by using "the chart of stowage and secuing of vehicle on board Ro-Roships'. At the end of the thesis, the suggestion is provided for the authority's consideration and some advice to construct Ro-Ro wharf Information management system.