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Design method for marine propeller made of carbon fiber composite material

A technology of marine propellers and composite materials, which is applied in the direction of rotating propellers, calculations, and rotary propellers, and can solve problems such as imperfect propeller design methods

Inactive Publication Date: 2011-07-20
HARBIN INST OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the design method of the current carbon fiber composite material propeller is not perfect, and then provides a design method of the carbon fiber composite material marine propeller

Method used

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  • Design method for marine propeller made of carbon fiber composite material
  • Design method for marine propeller made of carbon fiber composite material
  • Design method for marine propeller made of carbon fiber composite material

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specific Embodiment approach 1

[0028] Specific implementation mode one: as Figure 1~2 As shown, the design method of the carbon fiber composite material marine propeller of the present embodiment is realized by the following steps:

[0029] Step 1: Composite unidirectional carbon fiber or twill carbon fiber cloth with epoxy resin to make a standard specimen of carbon fiber composite material, and complete the test on a tensile testing machine according to GB 3354-82 to obtain the elastic constant and Poisson's ratio performance parameters, Among them, the elastic constant is EX=1.1e11Pa, EY=EZ=8.97e9Pa, Poisson's ratio is 0.34, and the shear modulus is 3.9e9Pa;

[0030] Step 2: According to the geometric value of the MAU-type metal propeller, use the three-dimensional solid configuration software UG to construct the geometric model of the carbon fiber composite propeller;

[0031] Step 3: Import the geometric model of the carbon fiber composite propeller into the finite element software ANSYS, select the ...

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Abstract

A design method for marine propeller made of carbon fiber composite material relates to a design method for a propeller. The invention solves the problem that the current design method for the marine propeller made of carbon fiber composite material is imperfect. The geometrical appearance of the blade by the design method for marine propeller made of carbon fiber composite material is calculatedby fully using the flexibility and designable performance of the composite material on the basis of the value data of the original MAU metal propeller blade and combining the fluid-structure couplingmethod with the implementation of the pre-deformation tactics; and the outside of the propeller hub is wrapped by the carbon fiber composite material. The marine propeller made of carbon fiber composite material designed by the method has the geometrical appearance and the internal structure more suitable for the propeller made of carbon fiber composite material, thereby being capable of effectively improving the fluid elasticity of the propeller and improving the propulsive efficiency.

Description

technical field [0001] The invention relates to a design method of a propeller. Background technique [0002] Since the 1970s, with the increasing development of various new types of ships and high-speed ships, the tonnage and main engine power of ships in the world have increased rapidly, and the requirements for propeller vibration, noise and propulsion performance have also increased significantly. Compared with traditional metal propellers, carbon fiber composite marine propellers have the characteristics of low vibration, low noise, light weight and high efficiency, seawater corrosion resistance and easy maintenance. Due to the essential difference between carbon fiber composite materials and metal materials, there is a big difference in the design of the propeller. [0003] At present, the widespread use of carbon fiber composite materials in the marine field provides a new opportunity for propeller designers. Compared with traditional metal materials, carbon fiber c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50B63H1/14
Inventor 赫晓东洪毅王荣国
Owner HARBIN INST OF TECH
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