Self-adaptive biomimetic composite propeller blade

A bionic composite material and propeller technology, applied in the direction of rotating propellers, rotary propellers, etc., can solve the problems of complex and expensive pitch control mechanism, increase the overall manufacturing cost of ships, etc., achieve broad application prospects, avoid serious waste of main engine power, reduce The effect of manufacturing cost

Inactive Publication Date: 2012-07-04
中国船舶重工集团公司第七〇二研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these require complex and expensive pitch adjustment mechanisms and variable speed gear devices (quoted from the "China Shipbuilding" journal "Discussion on the Propulsion Performance of Ships under Multiple Working Conditions" author: Sheng Zhenbang Zhu Wenwei), which increases the overall manufacturing cost of the ship

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Embodiment Construction

[0017] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] like figure 1 As shown, the blade body 100 is composed of the leading edge part 1 and the trailing edge part 2, the leading edge part 1 is arranged around the propeller reference shaft 200, the leading edge part 1 is provided with a rigid blade core 3, and the blade core 3 is covered with a flexible material Layer 4, the flexible material layer 4 is extended along the chord length direction to form the edge portion 2, and the side inclination distribution of the blade body 100 gradually increases from the blade root to the tip, so that the edge portion 2 is distributed behind the reference axis 200, and the flexible The material of the material layer 4 is carbon fiber or glass fiber composite material, and the blade core 3 is made of high-rigidity metal material, and various materials meet the strength requirement...

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Abstract

The invention relates to a self-adaptive biomimetic composite propeller blade. The body of the self-adaptive biomimetic composite propeller blade is formed by a guiding edge part and a following edge part. The self-adaptive biomimetic composite propeller blade is characterized in that the guiding edge part is arranged by taking the reference axis of a propeller as a center and provided with a rigid blade core, the rigid blade core is covered by a flexible material layer, and the flexible material layer extends along the chord length direction to form the following edge part. The self-adaptive biomimetic composite propeller blade has a simple and compact structure and is convenient to install. Due to the adoption of the self-adaptive biomimetic composite propeller blade, the overall manufacturing cost of the ship is reduced. Due to the adoption of the rigid blade core of the guiding edge part and the flexible material structure of the following edge part as well as the structure and the appearance of the propeller blade with the self-adaptive wake flow attack angle change, the violent bearing force vibration of the propeller blade working in the non-uniform wake field and the vacuole induced ship hull surface fluctuating pressure are reduced, the power of a host can be fully utilized in multiple working conditions, and the waste of the power of the conventional propeller host and the ducted propeller host can be reduced.

Description

technical field [0001] The invention relates to a marine propeller, in particular to an adaptive bionic composite material propeller blade. Background technique [0002] In all kinds of ship propulsion devices, most of the propellers work in the non-uniform wake field of the ship, and the angle of attack of the blade section at each angular position of the blade during a 360° rotation is changing, which causes the propeller The force is changing all the time, the bearing force of the propeller shaft vibrates violently, and due to the change of the angle of attack, the peak pressure on the surface of the propeller varies from time to time, and the extremely unstable cavitation flow causes strong cavitation-induced hull surface pulsation pressure. (Quoted from "Propeller Exciting Force" edited by Academician He Yousheng and Professor Wang Guoqiang, Shanghai Jiaotong University Press). [0003] On the other hand, ships with multiple working conditions (such as tugboats, fishi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H1/26
Inventor 曾志波姚志崇洪方文
Owner 中国船舶重工集团公司第七〇二研究所
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