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Study on the method of creating geometrical model and graphics of propeller base on NAPA

Xie Yunping,Zhang Wei,Li Juan(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang Jiangsu 212003,China)  
Propeller design is one of the most important part of ship design.Based on NAPA-software of ship design,three-dimension coordinate value was obtained by using NAPA BASIC language and coordinate transform.Simultaneously,two-dimension figure of blade was created with the help of promoting outline and section shape of blades.Sequentially,the method is effective to link geometrical body of blade with software of ship design.Also,it may need little manpower material resources.Furthermore,it can improve the application on compute-based propeller design,and find a new way to plot exactly and effectively.
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