Finite element modeling method for wind turbine blades of wind generating set

A technology of wind power generators and wind rotor blades, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as heavy work, and achieve the effect of strong error correction ability and simple operation

Active Publication Date: 2019-04-16
中科国风科技有限公司
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Problems solved by technology

Using traditional modeling methods, it has also become an impossible heavy work

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  • Finite element modeling method for wind turbine blades of wind generating set
  • Finite element modeling method for wind turbine blades of wind generating set
  • Finite element modeling method for wind turbine blades of wind generating set

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[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] It should be noted that the "connection" mentioned in this application and the words used to express "connection", such as "connected", "connected", etc., include not only a direct connection between a certain component and another component, but also a certain One part is connected to another part through other parts.

[0035] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be u...

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Abstract

The invention discloses a finite element modeling method for wind turbine blades of a wind generating set. The finite element modeling method comprises the steps that a blade laying layer parameter table is created according to a blade design laying layer graph; adding the material parameters required by the blade into a material library; constructing a blade geometric model by adopting three-dimensional modeling software; importing the blade layer paving parameter table and the blade geometric model into HyperMesh software through a blade finite element modeling plug-in; performing blade geometric model initialization, blade curved surface segmentation, lamination parameter table processing, grid division and grid attribute definition by using a blade finite element modeling plug-in to create a finite element model; and exporting the finite element model into a cdb file identified by Ansys software. The method has the advantages of high efficiency, simplicity in operation and high error correction capability, and has important practical significance for quickly and accurately establishing the finite element model of the fan blade.

Description

technical field [0001] The invention relates to the field of structural design of fan blades, in particular to a finite element modeling method for wind turbine blades of a wind power generating set. Background technique [0002] Due to its high precision, the finite element method has become an important tool for the design and optimization of the blade structure, and the anisotropy of the fan blade composite material and the variable thickness in the span and chord directions make the finite element modeling process extremely Complicated and difficult, using traditional modeling methods, even a very experienced CAE engineer will take several weeks or even longer to complete the finite element modeling. In order to optimize the stress structure of the blade and reduce the weight of the blade, it is necessary to establish a large number of finite element models for comparison and calculation to achieve the optimal solution. Using traditional modeling methods has also become...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 叶克东袁巍华张立新赵春妮吴映芳朱英伟杨一硕
Owner 中科国风科技有限公司
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