Design method of wind power blade in view of pneumatic and structural balance

A wind power blade and design method technology, applied in wind power generation, wind power generator components, engines, etc., can solve problems such as large amount of calculation, separation of design process by structure priority method, no mature method, etc., and achieve the effect of improving structural strength

Inactive Publication Date: 2012-07-18
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the current blade design and optimization process, the aerodynamic and structural design processes are carried out separately, and designing the aerodynamic shape and structure of the blade at the same time will lead to a large amount of calculation, and there is no mature method
The conventional method is to design the blade ae

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Design method of wind power blade in view of pneumatic and structural balance
  • Design method of wind power blade in view of pneumatic and structural balance
  • Design method of wind power blade in view of pneumatic and structural balance

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0043] 101) Determine the design parameters of the wind turbine blades. In this exemplary design, the blade of a certain 1.5MW wind turbine is designed, and its parameters are shown in Table 1.

[0044] Table 1 Design parameters of wind turbine blades

[0045]

[0046] 102) In this exemplary design, κ=0.55 is selected as the blade boundary, and the blades of the wind turbine are divided into inner ring blades and outer ring blades. 19.25 meters from the root of the leaf to the tip of the leaf.

[0047]103) Select airfoils for the inner and outer rings of the blade respectively. In the design process, the wind turbine blades are divided into multiple sections along the span direction to arrange the airfoil. Within the range of 5%~7% of the blade radius is a cylindrical blade root with a relative thickness of 100%; within the range of 7%~25% of the radius, the cylinder gradually transitions to the airfoil, and the relative thickness is 100~33%; 25%~40% of the radius The S...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a design method of a wind power blade in view of pneumatic and structural balance, belonging to the technical field of wind power blade design. The design method comprises the steps of: 1) dividing the designed blade into an inner ring and an outer ring according to the wind power unit blade and unit parameters; 2) choosing the pneumatic wing section of the inner ring blade; 3) choosing the pneumatic wing section of the outer ring blade; 4) calculating and optimizing the pneumatic appearance of the blade; and 5) designing the structure of the main beam of the wind power unit blade. The design method has the following beneficial effects: 1) the contradiction between the pneumatic design and the structural design is solved by considering the demand of structural strength in the pneumatic design process by means of dividing the blade into an inner ring and an outer ring and choosing a relatively thicker wing section for the inner ring; and 2) the structural strength of the blade is effectively improved by means of designing a shear web of the main beam in the inner ring of the blade into a waveform shape in the structural design of the main beam of the blade.

Description

technical field [0001] The invention belongs to the technical field of wind power blade design, and in particular relates to a wind power blade design method considering aerodynamic and structural balance, which is used for the design of large-scale wind power blade dimensional composite material structures. Background technique [0002] As a renewable green energy, wind energy has created the fastest growth rate in the global new energy industry with its huge commercial potential and environmental protection benefits, and has formed a huge wind power industry. Wind turbine blades are the core components of wind turbines, and the research on their design methods needs to be further studied. The blade design can be divided into two stages, namely, the aerodynamic design stage and the structural design stage. In the previous stage, the goal of the maximum annual power generation is achieved by selecting the best geometric shape of the blade. The structural design stage include...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F03D11/00
CPCY02E10/722
Inventor 马志勇芮晓明
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap