Design and manufacturing method of a new lightweight propeller

Abstract

The invention relates to a design and manufacturing method of a novel lightweight propeller. The method designs the basic contour characteristics of the propeller according to the requirements, topologically optimizes the interiors of the blades of the propeller to obtain a grid-like void structure, and at the same time, makes the surfaces of the blades of the propeller subjected to surface micro-structure treatment according to hydrodynamics and biological simulation; the designed new lightweight propeller is integrally processed to form the internal grids and surface microstructure of the propeller through additive manufacturing technology. The method has the advantages that it uses the novel surface microstructure to reduce the frictional resistance and improve the surface hydrodynamicperformance so as to achieve the effect of drag reduction and noise reduction, adopts a grid-type array cavity structure in the interior of the propeller to reduce the weight of the propeller and energy loss and increase the thrust under the unit mass so as to obtain a high thrust-to-weight ratio, and applies the additive manufacturing technology to process the novel propeller to solve the processing tasks that cannot be accomplished by common methods, reduce the development and manufacturing costs of the new product, and shorten the development cycle.

Description

technical field [0001] The invention relates to the design and manufacturing technology of a propeller, a key component of a marine power propulsion system, in particular to a design and manufacturing method of a novel lightweight propeller. Background technique [0002] In order to improve the efficiency of marine main engines, propellers are used as energy converters, and new energy-saving propellers have attracted more and more attention. In the propeller propulsion system, to reduce its energy loss and improve the efficiency of the propeller, it is necessary to reduce its circumferential energy loss. In order to solve this problem, it is necessary to improve the design of the current propeller structure. However, if the structure of the propeller of the new structure is too complicated, it cannot be realized by ordinary processing methods. [0003] With the development of rapid prototyping technology, additive manufacturing metal forming technology can solve the above-...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a design and manufacturing method of a new type of lightweight propeller, so as to solve the problems of current propellers such as vibration, noise and excessive energy consumption in use

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