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AUV composite material propeller layering optimization design method adopting KDGO algorithm

A composite material, optimization design technology, applied in the field of objective function, can solve problems such as lack of designability, and achieve the effect of saving time, rapid forecasting, and increasing modal frequency

Active Publication Date: 2021-02-02
NORTHWESTERN POLYTECHNICAL UNIV
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  • Application Information

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Problems solved by technology

This is because the hydrodynamic performance is determined by the geometric shape. After the geometric shape and material parameters are determined, the structural static and dynamic characteristics of the propeller are also determined, which does not have sufficient designability.

Method used

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  • AUV composite material propeller layering optimization design method adopting KDGO algorithm
  • AUV composite material propeller layering optimization design method adopting KDGO algorithm
  • AUV composite material propeller layering optimization design method adopting KDGO algorithm

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Embodiment Construction

[0032] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0033] Using KDGO algorithm to optimize the design of AUV composite propeller layup is a new optimization design method, and its design variable is the angle sequence of composite propeller layup.

[0034] The example is based on the DTMB4383 propeller, and its geometric parameters are: the number of blades is 5, the hub diameter ratio is 0.2, the disk surface ratio is 0.725, the blade section line shape is NACA a=0.8, the blade section thickness distribution is NACA 66 (modified), and the design advance coefficient is 0.889.

[0035] Specific steps are as follows:

[0036] Step 1: Select Epoxy Carbon UD (395GPa) Prepreg composite material as the layup material, and the layup thickness is 0.2mm. Since the DTMB4383 propeller has a large side slope angle and the geometry of the blade is relatively complex, the middle surface of the propeller is adopted. Starting f...

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Abstract

The invention relates to an AUV composite material propeller layering optimization design method adopting a KDGO algorithm, the influence of different layering angle sequences on the vibration performance of an AUV composite material propeller structure is studied for the layering angle and modal frequency, and by constructing a Kriging model between the layering angle sequences and the modal frequency, the vibration performance of the AUV composite material propeller structure is optimized. Rapid prediction of the vibration performance of the AUV composite material propeller structure in theoptimization process is realized, so that the optimization design time is saved, a KDGO algorithm is used for optimization design, and the modal frequency of the AUV composite propeller is effectivelyimproved on the premise that the strength is guaranteed.

Description

technical field [0001] The invention belongs to the research on the layup optimization design method of AUV composite material propeller, and relates to a kind of AUV composite material propeller layup optimization design method using KDGO algorithm, with the layup angle sequence of composite material propeller as the design variable and the modal frequency as The objective function, especially relates to the method of using KDGO algorithm to optimize the layup of AUV composite propeller. Background technique [0002] The development of marine resources often cannot avoid an important link, that is, the collection of internal structure data of the ocean, which usually involves seabed detection or even seabed construction. In order to achieve the above work, deep-sea exploration and ocean positioning technology have become important topics in recent years, and marine submersibles have also been developed in a variety of ways. Among them, the autonomous underwater vehicle AUV...

Claims

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Application Information

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IPC IPC(8): G06F30/23G06F113/26
CPCG06F30/23G06F2113/26
Inventor 董华超宋保维王鹏潘光施瑶
Owner NORTHWESTERN POLYTECHNICAL UNIV
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