Table 1

Performance parameters of blade materials"

Figure 1

Three-dimensional equivalent volume element model"

Figure 2

Deformed cloud chart of triaxial cloth [±45]4[0]2"

Figure 3

Schematic diagram of wind turbine blade chord structure"

Figure 4

The layer distribution of the spar cap along the spreading direction"

Figure 5

The laying scheme of the spar cap width"

Figure 6

Staggered laying scheme of the spar cap"

Figure 7

Symmetrical structure layers scheme design of the web and sandwich"

Figure 8

The overlap layers designed schemes of the shell"

Figure 9

Laying schemes of core material"

Figure 10

Laying schemes of leading edge spars"

Figure 11

The thickness distribution of s-shaped cross layer on the trailing edge"

Figure 12

Design scheme range of trailing edge spars along the spread"

Figure 13

Laying schemes of blade root reinforcement layer"

Table 2

Properties of glass fiber composites"

Figure 14

The thickness distribution of the blade each part along the span direction"

Figure 15

The structure diagram of the blade layer"

Table 3

Complete layer design scheme of blade"

Figure 16

The design of the complete blade layer"

Figure 17

Reference coordinate of load calculation"

Table 4

Classification of wind turbine blade load types"

Figure 18

Loading method of MPC coupling constraint"

Figure 19

Periodic boundary condition"

Figure 20

Divideof fluid domain"

Figure 21

Meshing divide of fluid domain"

Figure 22

Velocity flow diagram around the blade"

Figure 23

The surface pressure distribution of blades windward and leeward surface"

Figure 24

The maximum chord length plane pressure contour"

Figure 25

The velocity vector on the maximum chord length plane"

Figure 26

Pressure changes along the Z axis"

Table 5

Error comparison between two loading methods with the force and torque results in the root of GH blade"