Study On Match Among Vessel, Engine & Propeller For The HUDONG Type Propeller Design

With the increase of the tonnage and power of ocean-going ship,more and more attentions are paid to the match among vessel,main engine and propeller by shipping and shipbuilding world. Thus the research for high-efficiency propeller becomes of one important project in the field of science and technology.Being one of the new types of moderate skewed propeller with small area-ratio,the HUDONG type propeller is with virtues of high efficiency,low vibration and light in weight.Based on the theories of surface panel method,the mathematical models for the HODONG propeller are established in this paper. Comparisons made among the computing data and the test results show that they are in good agreement with one another,so the prediction presented in this paper is suited for engineering practice.Next,the question of match among vessel,engine and propeller is focused in this paper. It is discussed in detail that how the open water propeller characteristic data to be used for vessel and propeller work load conditions.And the last,some sea trial results show that the match among the main engine and propeller is slightly heavy for the real vessel construction. Although the reasons are very complex,most of them can be resolved by the method of propeller trailing edge modification. Because of lack of guidance in theory,the actual quantities of modification were very difficult to decided and lots of quarrels may be raised between the shipyard and the owner before. Further more,the real propeller working condition was also very difficult to predict accurately. We are now exploring a method in theory to predict the vessel voyage performance of given propeller trailing edge modification.