CN217846248U - Wind power blade test part and test system - Google Patents

Abstract

The utility model provides a wind-powered electricity generation blade test part and test system, the test part includes stacked structure, and stacked structure includes the panel of range upon range of setting and sets up the water conservancy diversion fabric structure layer between adjacent two-layer panel between the layer, and water conservancy diversion fabric structure layer includes framework structure, first water conservancy diversion fabric and second water conservancy diversion fabric between the layer, and framework structure is used for enclosing synthetic closed area with adjacent two-layer panel, and first water conservancy diversion fabric and second water conservancy diversion fabric set up inside and outside closed area respectively. The utility model discloses a set up in experimental part and preset the defect, and the position, the shape, the size of presetting the defect have designability, from this, when pouring into experimental part, the resin is by the separation outside closed area, can't soak the fabric in the closed area to at the inside defect that forms of experimental part, thereby can utilize this experimental part to test so that understand the inside influence of pouring the defect to wind-powered electricity generation blade structural performance of wind-powered electricity generation blade pultrusion roof beam.

Description

Wind power blade test part and test system

Technical Field

The utility model relates to a wind-powered electricity generation technical field particularly, relates to a wind-powered electricity generation blade test part and test system.

Background

The pultruded plate has high specific rigidity and specific strength, and is gradually used in the design and manufacture of large fan blades. Because the pultruded panel is a formed material, when the pultruded panel is used for the perfusion process of the fan blade, the defects of interlayer dry yarn and poor infiltration are easily caused because resin cannot permeate through the surface of the panel to permeate downwards. This drawback, although improved by modifying the cross-sectional shape of the pultruded panel and the infusion process, is not completely avoided. Therefore, in order to improve the reliability of the fan blade manufacturing, the influence of dry yarns and poor infiltration defects between the layers inside the pultruded beam on the structural life of the blade needs to be evaluated through experiments.

The mode of full-size blade verification, though can carry out comprehensive verification to the structural performance of blade, blade manufacturing cost and test cost are all very high, and the test cycle is long. And as the blades grow larger, the larger and longer the blades, the higher the manufacturing and testing costs. Therefore, the test verification of the full-size blade is generally performed only once in the new product authentication stage, and the verification is difficult to perform for many times. In addition, this single verification approach is not very adequate due to the discreteness of test verification.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem provide a can simulate wind-powered electricity generation blade pultrusion roof beam internal layer dry yarn and soak the test part of bad defect to be used for the test to verify the influence of filling the defect to fan blade structural performance.

In order to solve the problem, the utility model provides a wind-powered electricity generation blade test part, including stacked structure, stacked structure includes the panel of range upon range of setting and sets up in adjacent two-layer water conservancy diversion fabric structure layer between the panel, water conservancy diversion fabric structure layer includes framework structure, first water conservancy diversion fabric and second water conservancy diversion fabric between the layer, framework structure is used for enclosing synthetic closed area with adjacent two-layer panel, first water conservancy diversion fabric with second water conservancy diversion fabric is used for setting up respectively inside and outside closed area.

The utility model discloses a wind-powered electricity generation blade test part compares in prior art's advantage lies in:

the utility model discloses a frame structure forms closed area between panel layer, and place the defect material that needs the verification in closed area, can set up in the test part and preset the defect, and preset the position of defect, the shape, the size has designability, therefore, filling the in-process to the test part, the resin is by the separation outside closed area, the fabric in the closed area can't be infiltrated, thereby yarn defect or infiltration harmfulness defect are done in the inside formation of test part, so that follow-up test wind-powered electricity generation blade pultrusion roof beam is inside fills the influence of defect to wind-powered electricity generation blade structural performance.

In one embodiment, the frame structure includes a closed rubber ring coated between the plates.

The utility model discloses a glueing on panel, when extrudeing two panels, the rubber ring can solidify under the squeezing action, obtains closed area from this.

In one embodiment, the frame structure includes a prefabricated panel frame disposed between the panels.

In one embodiment, two opposite sides of the prefabricated plate frame are respectively bonded with two adjacent layers of the plates.

The utility model discloses a prefabricated sheet frame and two panels enclose synthetic closed area jointly, and prefabricated sheet frame can make in advance, convenient and fast.

In one embodiment, the outer contour dimension of the first flow-guiding fabric is smaller than or equal to the inner contour dimension of the frame structure.

In one embodiment, the second flow guide fabric comprises a fabric layer with through holes, and the size of the through holes is greater than or equal to the outer contour size of the frame structure.

The utility model discloses a predetermine the through-hole in a fabric layer to make the through-hole can hold frame structure, from this, place second water conservancy diversion fabric back on first panel, two panels and the frame structure between them enclose synthetic closed area jointly. In addition, the second fabric layer is perforated in the whole fabric layer, so that the second fabric layer can be prevented from deviating outside the closed area when the two plates are extruded.

In one embodiment, the number of the stacking structures is multiple, and the stacking structures are stacked in the stacking direction of the plates or arranged in a direction perpendicular to the stacking direction of the plates.

In one embodiment, the wind turbine blade test part further comprises skin fabric layers, and the skin fabric layers are respectively arranged on the upper surface and the lower surface of the stacking structure.

In one embodiment, the first guide fabric comprises one of a biaxial cloth and a plain cloth, and the second guide fabric comprises one of a biaxial cloth and a plain cloth.

The utility model also provides a test system, including wind-powered electricity generation blade test part and set up in the material system is assisted in the wind-powered electricity generation blade test part outside, one side of assisting the material system is provided with the injecting glue mouth, the injecting glue mouth is used for injecting into the resin, the opposite side of assisting the material system is provided with the extraction opening.

The utility model discloses an advantage of test system comparison in prior art lies in: through the utility model discloses an experimental system can obtain inside wind-powered electricity generation blade test part that has dry yarn defect or infiltration defects such as bad, tests through the correlation performance to this test part, can know the inside influence of filling the defect to wind-powered electricity generation blade structural performance of wind-powered electricity generation blade pultrusion roof beam, and all the other advantages are the same with wind-powered electricity generation blade test part, no longer give unnecessary details here.

Drawings

FIG. 1 is a schematic view illustrating surface sizing of a pultruded panel according to an embodiment of the present invention;

fig. 2 is a schematic view of the arrangement of a first flow guide fabric in an enclosed area according to an embodiment of the present invention;

FIG. 3 is a schematic view of a process of disposing a second spacer fabric outside the closed area according to an embodiment of the present invention;

FIG. 4 is a schematic view of the second fluid directing fabric disposed outside the enclosed area according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a pre-arranged defective sandwich panel in an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of a pre-arranged defective sandwich panel in an embodiment of the present invention;

fig. 7 is a schematic diagram of a stacking structure in an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a test part in an embodiment of the present invention;

fig. 9 is a schematic view of manufacturing a sandwich panel with a preset defect in another embodiment of the present invention;

fig. 10 is a schematic view illustrating the filling of the test member according to the embodiment of the present invention.

Description of reference numerals:

1-a plate material; 11-a first sheet material; 12-a second sheet material; 2-interlayer flow guide fabric structure layer; 21-a first flow directing fabric; 22-a second flow directing fabric; 23-a frame structure; 24-a via hole; 3-a closed area; 4-upper covering fabric; 5-lower covering fabric;

10-presetting a defective sandwich plate; 100-test part; 200-auxiliary material system; 300-a glue injection port; 400-an extraction opening; 500-sample preparation platform.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

It should be noted that the horizontal direction in this embodiment refers to a direction parallel to a reference horizontal plane, the reference horizontal plane is a plane parallel to the surface of the plate material 1, i.e., a plane formed by the X axis and the Y axis in fig. 1, and the vertical direction in this embodiment refers to a Z axis direction in fig. 1.

Because the full-size blade verification has the defects of high blade manufacturing cost and testing cost, long testing period and the like, compared with the full-size blade test, the part test of the fan blade structure is simulated, a certain defect or structural characteristic in the fan blade can be verified in a more targeted manner, the manufacturing cost of a sample piece for the part test is far lower than the blade manufacturing cost, the testing period is short, and multiple times of verification can be performed. Therefore, this embodiment provides a wind-powered electricity generation blade test part, adopts this test part to carry out fan blade structural defect's experimental aassessment, verifies more fully, and the cycle is also shorter.

Referring to fig. 1-8, a wind turbine blade test component 100 (hereinafter referred to as a test component) according to an embodiment of the present invention includes a stacked structure, the stacked structure includes stacked plates 1 and an interlayer flow guide fabric structure layer 2 disposed between two adjacent layers of plates 1, the interlayer flow guide fabric structure layer 2 includes a frame structure 23, a first flow guide fabric 21 and a second flow guide fabric 22, the frame structure 23 is used to enclose a closed area 3 with two adjacent layers of plates 1, and the first flow guide fabric 21 and the second flow guide fabric 22 are used to be disposed inside and outside the closed area 3 respectively.

In the embodiment, an interlayer diversion fabric structure layer 2 (hereinafter, may be simply referred to as a structure layer) is arranged between stacked plates 1, and the structure layer 2 is not a whole diversion fabric but is composed of a first diversion fabric 21 and a second diversion fabric 22 which are separated by a frame structure 23, so that when the plates 1 are stacked, the frame structure 23 and two adjacent plates 1 form a closed area 3, at this time, a side wall of the closed area 3 is formed by the frame structure 23, and a top wall and a bottom wall are formed by two plates 1, so that the first diversion fabric 21 in the closed area 3 is isolated from the outside. Therefore, different fabrics for defect verification can be placed in the closed area 3 to set a preset defect in the test part 100, and the preset defect can be converted into a perfusion defect in a subsequent perfusion process, for example, in the process of perfusion of the test part 100, since the first guide fabric 21 is closed in the closed area 3, resin cannot infiltrate the first guide fabric 21 in the closed area 3 through the frame structure 23, so that a dry yarn defect or other perfusion defects are formed inside the test part 100, and therefore the test part 100 of the embodiment can obtain a test piece through resin perfusion of the test part, and then a test about the perfusion defect inside the wind power blade pultrusion beam is performed based on the test piece.

The perfusion defects generally include defects such as interlayer dry yarn defects and poor infiltration, the types of the defects are related to the fabric preset in the test part 100, for example, when a dry interlayer flow guide fabric is placed in the closed area 3, the test part 100 of the embodiment can be used for simulating dry yarn defects, and when a resin-precoated interlayer flow guide fabric is placed in the closed area 3, the test part 100 of the embodiment can be used for simulating poor infiltration defects.

The test component 100 of the embodiment can be used for testing the influence of the perfusion defect on the structural performance of the fan blade, the manufacturing cost of the test component 100 is far lower than that of the blade, the test period is short, and multiple defect verifications can be performed through a plurality of test components 100. In addition, the present embodiment provides the closed region 3 by the frame structure 23, whereby the shape, position, and size of the pre-set defect inside the test part 100 can be precisely controlled, so that the arrangement of the defect has strong designability.

In some of these embodiments, the sheet 1 is the same as a pultruded sheet used in the manufacture of fan blades. The pultruded panel may be a glass fiber pultruded panel or a carbon fiber pultruded panel. In order to facilitate the inspection of the internal defects of the test component 100, the plate 1 of the embodiment is preferably a translucent glass fiber pultruded plate, thereby facilitating the inspection of the arrangement of the defects in the test component 100 according to the design requirements on the one hand, and facilitating the inspection of the change or expansion process of the preset defects inside the test component 100 during the testing process on the other hand. In particular implementations, the pultruded panels may be cut to the desired size and number according to the design requirements of the test part 100.

In some embodiments, the first guide fabric 21 and the second guide fabric 22 may be the same or different guide fabrics, and the guide fabrics are preferably wind turbine blade pultruded beam interlayer guide fabrics, which may more truly simulate a perfusion defect. In particular embodiments, the fluid directing fabric may be a low areal density biaxial or plain weave fabric, such as 200-400g/m ² The glass fiber biaxial cloth or the carbon glass mixed plain cloth. In addition, the guide fabric used in the manufacturing process of the wind power blade is adopted in the embodiment, the dry yarn area or the poorly-infiltrated area formed by the method is the actual interlayer guide fabric, the maintainability is achieved, the test and verification of the maintenance scheme are facilitated, for example, the test of the blade after punching, glue injection and repair is carried out, and the wind power blade after maintenance can be tested.

In some of these embodiments, the frame structure 23 comprises a closed rubber ring applied between the sheets 1. The closed rubber ring can be formed by curing adhesive or resin. The adhesive is preferably a structural adhesive used in the manufacture of wind blades. Illustratively, a ring of adhesive is applied to the surface of the first sheet 11, and after the second sheet 12 is placed on the first sheet 11 and pressed, the adhesive on the surface of the first sheet 11 is pressed by the second sheet 12 and spread around, thereby enclosing the closed region 3 with the two sheets 1.

In other embodiments, the frame structure 23 comprises a prefabricated panel frame disposed between the panels 1. The prefabricated plate frame can be a closed frame formed by cutting a thin glass steel plate into specific shapes and sizes according to needs, then adhering the prefabricated plate frame to the surface of the first plate 11 through adhesive or resin, then adhering the prefabricated plate frame to the second plate 12 through adhesive or resin, and enclosing the two plates 1 together through the prefabricated plate frame to form a closed area 3.

Since the first flow guide fabric 21 is disposed inside the closed area 3 and the second flow guide fabric 22 is disposed outside the closed area 3, it can be understood that the outer dimension of the first flow guide fabric 21 should be smaller than or equal to the inner dimension of the frame structure 23, which is mainly for the convenience of placing the first flow guide fabric 21 in the closed area 3. Since the sidewall of the closed area 3 is formed by the frame structure 23, when the frame structure 23 is an adhesive, if the first conductive fabric 21 is placed to touch the adhesive, the sealing performance of the closed area 3 may be affected, and in a subsequent pouring process, resin enters the closed area, which affects the formation of defects. When the frame structure 23 is a prefabricated plate frame, if the size requirement is not met, the first fabric 21 may not be laid in the closed area 3 smoothly, and the sealing performance of the closed area 3 may also be affected. In addition, the outer contour dimension of the first flow guide fabric 21 is set to be smaller than or equal to the inner contour dimension of the frame structure 23, so as to reserve a space for the adhesive curing. Since the frame structure 23 has a certain width, it can be understood that the inner contour dimension of the frame structure 23 refers to the dimension of the inner edge of the frame structure 23, and similarly, the outer contour dimension of the frame structure 23 refers to the dimension of the outer edge of the frame structure 23. The width of the frame structure 23 is a dimension in the horizontal direction, and the thickness is a dimension in the vertical direction.

In some embodiments, the second flow-guide fabric 22 includes a fabric layer with through holes 24, and the size of the through holes 24 is greater than or equal to the external size of the frame structure 23. In this embodiment, the second fluid-guiding textile 22 is a single-piece textile with a through hole 24 in the middle, but it is also possible to arrange a plurality of fluid-guiding textiles respectively outside the frame structure 23, but this way is easily deviated. In the present embodiment, the through hole 24 is preset in one fabric layer, so that the through hole 24 can accommodate the frame structure 23, thereby, after the second fabric guide 22 is placed on the first board 11 with the frame structure 23 and the first fabric guide 21, the frame structure 23, and the second fabric guide 22 are sequentially arranged on the first board 11 from the center to the periphery, and after the second board 12 is placed on the first board 11, the two boards 1 and the frame structure 23 therebetween jointly enclose the closed region 3.

In some embodiments, the number of the stacked structures is multiple, and the multiple stacked structures are stacked in the stacking direction of the plate materials 1, or arranged in a direction perpendicular to the stacking direction of the plate materials 1. It is to be understood that the stacking direction of the plate materials 1 in fig. 7 and 8 is a vertical direction, and the vertical direction can be a horizontal direction, and as shown in fig. 8, the test member 100 is formed by aligning two stacking structures as shown in fig. 7 in the stacking direction vertical to the plate materials 1, and of course, a plurality of stacking structures may be arranged in a staggered manner in the stacking direction vertical to the plate materials 1, or a plurality of stacking structures may be stacked in the vertical direction. Further, the test part 100 further includes skin fabric layers including an upper skin fabric 4 and a lower skin fabric 5, which are provided on the upper surface and the lower surface of the stacked structure, respectively.

In order to facilitate understanding of the specific structure of the test member 100 of the present embodiment, a process of manufacturing the test member 100 is briefly described, so that the structure of each part of the test member 100 can be clearly understood.

In one embodiment, a pre-flawed sandwich panel 10 is first fabricated, comprising:

first, a ring of adhesive, preferably a structural adhesive for blade manufacture, is applied to the middle of the surface of the first plate 11. During the application process, the width and thickness of the glue layer are controlled, and after the application process is completed, the adhesive is enclosed into a closed area 3, as shown in fig. 1.

Cutting an interlayer flow guide fabric according to the shape and the size of the adhesive closed area 3, wherein the size of the interlayer flow guide fabric is slightly smaller than or equal to that of the closed area 3, taking the cut flow guide fabric as a first flow guide fabric 21, placing the first flow guide fabric 21 into the adhesive closed area 3, and enabling the first flow guide fabric 21 not to contact with the adhesive as much as possible, as shown in fig. 2. The first flow fabric 21 in the enclosed area 3 will become a pre-set dry yarn defect in the test piece being made. The first flow-directing fabric 21 may be a low areal density biaxial or plain cloth, such as 200-400g/m ² The glass fiber biaxial cloth or the carbon glass mixed plain cloth.

As shown in fig. 3, the flow guide fabric is cut according to the shape and size of the first plate 11, through holes 24 are cut in the middle of the flow guide fabric according to the shape and size of the outer side of the adhesive, the size of the through holes 24 is greater than or equal to the size of the outer side of the adhesive, the flow guide fabric with the through holes 24 is used as the second flow guide fabric 22, after the second flow guide fabric 22 is placed on the first plate 11, the edge of the inner side of the through holes 24 of the second flow guide fabric 22 does not contact the adhesive, the outer side of the second flow guide fabric 22 is aligned with the edge of the first plate 11, the arrow in fig. 3 indicates the arrangement direction of the second flow guide fabric, and the effect after the second flow guide fabric 22 is placed is shown in fig. 4.

After the laying of the first and second fabrics 21 and 22 is completed, the second sheet 12 is placed on the surface of the first sheet 11, as shown in fig. 5 and 6. Fig. 6 isbase:Sub>A cross-sectional view of fig. 5 taken along sectionbase:Sub>A-base:Sub>A. Pressure is applied to the surface of the second sheet 12 to cause the second sheet 12 to compact the flow directing fabric thereunder, including the first flow directing fabric 21 within the enclosed area 3 and the second flow directing fabric 22 outside the enclosed area 3. The adhesive on the surface of the first sheet 11 is pressed by the second sheet 12 and then spread around to isolate the first flow directing fabric 21 in its enclosed area 3 from the outside. And (3) curing the adhesive between the first plate 11 and the second plate 12 under the action of pressure, and bonding the second plate and the first plate 11 together by pultrusion, thereby obtaining the manufacturing of the pre-defect sandwich plate 10.

Then, a stacked structure is manufactured, including:

the second sheet 12 is sequentially provided with the structural layer 2, the third sheet 1, and the structural layer 2 in the above manner, and so on, to obtain a stacked structure, as shown in fig. 7.

Finally, a test part 100 was produced, comprising:

as shown in fig. 8, the test element 100 is formed of at least one stack of structures, for example, a group of stacks of pultruded sheet material, and the test element 100 may also be formed of a plurality of groups of stacks, for example, two groups of stacks arranged side by side, including a first stack of pultruded sheet material and a second stack of pultruded sheet material arranged beside the first stack. The interlayer flow guide fabric structure layer 2 is arranged between any two adjacent layers of plates 1 in the stacked structure. The test part 100 was obtained by arranging the required skin fabric on each of the lower and upper surfaces of the stacked sheets according to the part design requirements.

In another embodiment, the frame structure 23 is in the form of a prefabricated panel frame, as shown in fig. 9, which is first formed of a low areal density fabric (200-400 g/m) ² ) The thin glass fiber reinforced plastic plate is prefabricated, then the glass fiber reinforced plastic plate is cut into a sealing frame with a specific shape and size according to needs, and then the sealing frame is bonded to the surface of the first plate 11 through an adhesive or resin to form a sealing area 3. And respectively placing a first flow guide fabric 21 and a second flow guide fabric 22 inside and outside the closed area 3, and bonding the prefabricated closed frame and the second plate 12 through adhesive or resin to manufacture the pre-defect sandwich plate 10. Arrows in fig. 9 indicate the arrangement directions of the second plate and the second air guide fabric, respectively. The subsequent process of manufacturing the stacked structure and the test part 100 is the same as the above, and is not described herein again.

The utility model discloses a test system (can be abbreviated as test system below) of another embodiment, including foretell test part 100 and set up in the supplementary material system 200 in the test part 100 outside, one side of supplementary material system 200 is provided with injecting glue mouth 300, and injecting glue mouth 300 is used for injecting into the resin, and the opposite side of supplementary material system 200 is provided with extraction opening 400.

As shown in fig. 10, after the internal defect arrangement and the plate stacking of the test part 100 are completed on the sample preparation platform 500, the auxiliary material system 200 is arranged around the test part 100, and the auxiliary material system 200 includes a release cloth, an isolation film, a diversion net, a vacuum bag film, etc. required by a vacuum assisted infusion molding process (VARTM). The injection port 300 is provided on one side of the test part 100, and the extraction port 400 is provided on the other side. And after vacuumizing and maintaining pressure for a period of time, injecting resin into the glue injection port, and removing the auxiliary materials after heating and curing. Since the guide fabric pre-placed in the test part 100 is closed by the adhesive, during the infusion process, the resin cannot infiltrate the guide fabric in the closed area 3 through the cured adhesive layer, thereby forming a dry yarn area or an poorly infiltrated area inside the test part 100.

Through the test system of this embodiment, can obtain the inside wind-powered electricity generation blade test piece that has dry yarn defect or infiltration harmfully defect, through testing the correlation performance to this test piece, can know the wind-powered electricity generation blade and pull the influence of filling the defect inside the beam of pultrusion to wind-powered electricity generation blade structural performance.

Therefore, in the embodiment, the closed area 3 is formed by the adhesive or the thin plate between the pultruded plate layers, the resin is prevented from entering the closed area 3 in the infusion process to form the isolation area, the defect material to be verified is placed in the closed area 3 surrounded by the adhesive or the thin plate, so that test pieces with different defects can be obtained, and the defect position, the shape and the size have designability. The manufacturing cost of the test piece for testing the component is far lower than that of the blade, the test period is short, and multiple times of verification can be performed. Therefore, the testing piece is adopted to carry out test evaluation on the structural defects of the fan blade, the verification is more sufficient, and the period is shorter.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims (10)

1. The utility model provides a wind-powered electricity generation blade test component, its characterized in that, includes stacked structure, stacked structure is including range upon range of panel (1) that sets up and set up in adjacent two-layer water conservancy diversion fabric structure layer (2) between panel (1), water conservancy diversion fabric structure layer (2) between the layer includes framework (23), first water conservancy diversion fabric (21) and second water conservancy diversion fabric (22), framework (23) are used for with adjacent two-layer panel (1) encloses synthetic closed area (3), first water conservancy diversion fabric (21) with second water conservancy diversion fabric (22) are used for setting up respectively the inside and the outside of closed area (3).

2. Wind blade test part according to claim 1, characterized in that the frame structure (23) comprises a closed rubber ring applied between the sheets (1).

3. Wind turbine blade test part according to claim 1, characterized in that the frame structure (23) comprises prefabricated plate frames arranged between the plates (1).

4. The wind turbine blade test part according to claim 3, wherein two opposite sides of the prefabricated plate frame are respectively bonded with two adjacent layers of the plates (1).

5. Wind turbine blade test part according to claim 1, characterized in that the outer contour dimension of the first flow guiding fabric (21) is smaller than or equal to the inner contour dimension of the frame structure (23).

6. The wind turbine blade test part according to claim 1, wherein the second flow guide fabric (22) comprises a fabric layer pre-provided with through holes, and the size of the through holes is larger than or equal to the outer contour size of the frame structure (23).

7. The wind turbine blade test part according to claim 1, wherein the number of the stacking structures is multiple, and the stacking structures are stacked in the stacking direction of the plates (1) or arranged in the stacking direction perpendicular to the plates (1).

8. The wind blade test part according to claim 1, further comprising skin fabric layers respectively disposed on an upper surface and a lower surface of the stacked structure.

9. The wind blade test part according to claim 1, wherein the first guide fabric (21) comprises one of a biaxial cloth and a plain cloth, and the second guide fabric (22) comprises one of a biaxial cloth and a plain cloth.

10. A test system, characterized by comprising the wind turbine blade test component according to any one of claims 1 to 9 and an auxiliary material system (200) arranged outside the wind turbine blade test component, wherein one side of the auxiliary material system (200) is provided with a glue injection port (300), the glue injection port (300) is used for injecting resin, and the other side of the auxiliary material system (200) is provided with an extraction port (400).

Images