Centrifugal force loading device of margin plate damper and turbine blade vibration test device

Abstract

A centrifugal force loading device of a margin plate damper and a turbine blade vibration test device are used for improving the condition that the static loading direction of the centrifugal force of the margin plate damper is inaccurate. The margin plate damper centrifugal force loading device comprises a first guide piece, a first matching piece, a second guide piece, a second matching piece, an abutting piece and a loading device body. The first matching piece is movably matched with the first guiding piece and is guided by the first guiding piece to move in the circumferential direction; the second guide piece is fixed to the first matching piece; the second matching piece is movably matched with the second guide piece and is guided by the second guide piece to move in the radial direction and rotate around the radial direction; the abutting piece is used for abutting against the inner circumferential wall of the margin plate damper and is rotationally connected with the second matching piece so as to rotate in the axial direction. The loading device is used for exerting force towards the peripheral side on the second matching piece and allowing the second matching piece to move in the radial direction and rotate around the radial direction.

Description

Technical Field

[0001] The invention relates to a test technology, in particular to a centrifugal force loading device for an edge plate damper and a turbine blade vibration test device. Background Art

[0002] The turbine blades of large bypass ratio aircraft engines are becoming increasingly slender and weak, and the high-cycle fatigue problem they face under high temperature and high speed conditions is becoming more and more prominent. Therefore, the vibration reduction design of turbine blades is particularly important. In order to prevent large-scale fatigue failure of turbine blades, existing turbine blades generally place edge plate dampers on the inner side of the edge plate to control the structural resonance response. The parameter design of the edge plate damper is particularly important. Different structural forms, damping masses, contact surface inclinations, etc. will affect the vibration reduction effect. In order to verify the optimal design of the edge plate damper, the vibration response of the turbine blades with different edge plate dampers is tested. Usually, the edge plate damper is statically loaded to simulate the centrifugal force load.

[0003] The static loading of the edge plate damper is achieved by applying tension to the edge plate damper with a rope. The test results are often quite different from the actual installed working conditions. On the one hand, the direction of the tension applied by the rope to the edge plate damper is difficult to accurately point to the radial outside, resulting in inaccurate simulated centrifugal force load. On the other hand, the concentrated load applied by the rope to the edge plate damper is likely to cause the edge plate damper to bend and deform, thereby changing the friction contact area, resulting in inaccurate simulated working state of the edge plate damper under centrifugal force load. Summary of the invention

[0004] The object of the present invention is to provide a centrifugal force loading device for an edge plate damper and a turbine blade vibration test device, which are used to improve the situation that the centrifugal force static loading direction of the edge plate damper is inaccurate.

[0005] In the first aspect, the present invention provides a centrifugal force loading device for an edge plate damper, which is used to load centrifugal force on the edge plate damper on the inner peripheral side of the edge plate of a circumferentially adjacent turbine blade test piece, the extension direction of the edge plate damper is axial, and according to an embodiment of the present invention, the centrifugal force loading device for the edge plate damper includes a first guide member, a first mating member, a second guide member, a second mating member, a resisting member and a loading device; the first mating member is movably matched with the first guide member, and is guided by the first guide member to move in the circumferential direction; the second guide member is fixed to the first mating member; the second mating member is movably matched with the second guide member, and is guided by the second guide member to move in the radial direction and rotate around the radial direction; the resisting member is used to resist the inner peripheral wall of the edge plate damper, and is rotatably connected to the second mating member for rotation around the axial direction; the loading device is used to apply a force toward the outer peripheral side to the second mating member, and allow the second mating member to move in the radial direction and rotate around the radial direction.

[0006] In one or more embodiments, the first guide member includes a slide rail, which extends circumferentially and has an outer peripheral wall and an inner peripheral wall; the first mating member includes a first slider, which extends circumferentially and has an outer peripheral wall and an inner peripheral wall; the outer peripheral wall of the first slider slidably matches the outer peripheral wall of the slide rail, and the inner peripheral wall of the first slider slidably matches the inner peripheral wall of the slide rail.

[0007] In one or more embodiments, the second guide member includes a first rod, which extends radially; the second mating member includes a sliding block, which is provided with a hole, the hole is inserted into the first rod, and is slidably and rotationally mated with the first rod.

[0008] In one or more embodiments, the abutment is rotatably supported on the second mating member via a bearing.

[0009] In one or more embodiments, the abutment member is provided with an abutting surface on the outer peripheral wall, and the abutting surface is used to abut against and cover the inner peripheral wall of the edge plate damper.

[0010] In one or more embodiments, the second fitting member is provided with a second rod, and the loading device comprises a wire rope sleeve, and the wire rope sleeve is sleeved on the second rod to allow the second fitting member to rotate radially.

[0011] In one or more embodiments, the first guide member, the first mating member, the second guide member and the second mating member are used to be arranged on both axial sides of the edge plate damper, the abutment member connects the second mating members on both axial sides, and the loading device is used to apply force toward the outer peripheral side to the second mating members on both axial sides.

[0012] In one or more embodiments, the centrifugal force loading device of the edge plate damper also includes a clamp, which is provided with at least two mortises along the circumferential direction, and the mortise is used to accommodate the tenon of the turbine blade test piece. The mortise is provided with a bolt at the bottom, and the bolt is used to push the tenon of the turbine blade test piece against the mortise.

[0013] In one or more embodiments, at least two of the first mating member, the second guide member, the second mating member, the abutment member and the loading device are circumferentially arranged for loading centrifugal force on at least two edge plate dampers.

[0014] In a second aspect, the present invention provides a turbine blade vibration test device. According to an embodiment of the present invention, the turbine blade vibration test device includes a vibration generator, a test system and the above-mentioned edge plate damper centrifugal force loading device; the vibration generator is used to apply vibration input to the turbine blade test piece; the test system is used to obtain the vibration response of the turbine blade test piece.

[0015] The embodiments of the present invention have at least the following beneficial effects:

[0016] When the loading device is loaded, the loading device applies a force toward the outer peripheral side to the second mating part, and the edge plate damper limits and positions the resisting part, causing the resisting part to change its position and posture. During this process, the second mating part is forced by the loading device to move radially on the second guide part, and the resisting part is forced by the edge plate damper to rotate around the first axial direction on the second mating part. The second mating part is forced by the resisting part to rotate radially on the second guide part, and the second guide part is forced by the second mating part to make the first mating part move circumferentially on the first guide part, and finally the resisting part is pressed against and fits the inner peripheral wall of the edge plate damper, and the resisting part is pulled radially, applying a force accurately directed to the radial outside to the edge plate damper, and the simulated centrifugal force load is accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0018] Figure 1 is an oblique view of a turbine blade vibration test device and a turbine blade test piece;

[0019] Figure 2 It is an oblique view of the centrifugal force loading device of the edge plate damper and the turbine blade test piece;

[0020] Figure 3 It is an oblique view of the centrifugal force loading device of the edge plate damper and the turbine blade test piece;

[0021] Figure 4 It is an oblique view of the centrifugal force loading device of the edge plate damper and the turbine blade test piece;

[0022] Figure 5 for Figure 4 Cross-sectional view at AA in the middle;

[0023] Figure 6 is an oblique view of the first matching member, the second guide member and the second matching member;

[0024] Reference numerals:

[0025] 1-Centrifugal force loading device of edge plate damper;

[0026] 2-Vibration generator;

[0027] 3- Turbine blade test piece;

[0028] 4-leaf body;

[0029] 5-Edge plate;

[0030] 6-Edge plate damper;

[0031] 7- first guide member;

[0032] 8- first matching piece;

[0033] 9- second guide member;

[0034] 10- second matching piece;

[0035] 11-Arrival;

[0036] 12- loading device;

[0037] 13- slide rail;

[0038] 14- a first peripheral wall;

[0039] 15- a first inner peripheral wall;

[0040] 16- first slider;

[0041] 17- a second outer peripheral wall;

[0042] 18- second inner peripheral wall;

[0043] 19 - First shot;

[0044] 20-sliding block;

[0045] 21-first hole;

[0046] 22-bearing;

[0047] 23 - Second shot;

[0048] 24-wire rope sleeve;

[0049] 25-tightening surface;

[0050] 26-second hole;

[0051] 27-first bolt;

[0052] 28-guide groove;

[0053] 29-Clamp;

[0054] 30-mortise and tenon;

[0055] 31-tenon;

[0056] 32- second bolt;

[0057] 33-bolt hole;

[0058] 34-wire rope;

[0059] 35-tension sensor;

[0060] 36-top fixed support end;

[0061] 37-Gantry;

[0062] 38-mounting table;

[0063] 39-Third bolt. DETAILED DESCRIPTION

[0064] Reference will now be made in detail to embodiments of the present invention, one or more examples of which are illustrated in the accompanying drawings. Each example is provided to explain the present invention, not to limit the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature illustrated or described as part of one embodiment may be used together with another embodiment to produce yet another embodiment. Therefore, the present invention is intended to cover these modifications and variations within the scope of the appended claims and their equivalents.

[0065] It should be noted that these and other subsequent drawings are only examples and are not drawn to scale, and should not be used to limit the actual scope of protection required by the present invention.

[0066] The terms "first", "second", etc. may be used interchangeably to distinguish one feature from another, and are not intended to mean that each feature must be located as shown in the figures in each embodiment.

[0067] like Figure 1 As shown, the turbine blade vibration test device includes a centrifugal force loading device 1 for an edge plate damper, a vibration generator 2, and a test system (not shown in the figure). The vibration generator 2 applies a vibration input to the turbine blade test piece 3. The vibration generator 2 may be an exciter. The vibration generator 2 may apply a vibration input in the form of excitation to the blade body 4 of the turbine blade test piece 3 through a mandrel. The test system obtains the vibration response of the turbine blade test piece 3. The test system may arrange a sensor (not shown in the figure) on the blade body 4 of the turbine blade test piece 3 to obtain dynamic stress or displacement.

[0068] like Figure 3 and Figure 5As shown, the centrifugal force loading device 1 of the edge plate damper loads centrifugal force on the edge plate damper 6 on the inner peripheral side of the edge plate 5 of the circumferentially adjacent turbine blade test piece 3, simulating the working state of the edge plate damper 6 under the centrifugal force load when the turbine blade rotates. The outer peripheral side of the edge plate damper 6 is connected to the inner peripheral side of the edge plate 5, thereby reducing the vibration of the turbine blade test piece 3. The edge plate damper 6 can be a damping block, and the damping block can have a triangular cross-section and extend along the first axial direction. The turbine blade test piece 3 can be arranged around the central axis, and the direction in which the central axis extends is the second axial direction. The first axial direction may coincide with the second axial direction or not. In the illustrated embodiment, the first axial direction is inclined at a certain angle relative to the second axial direction.

[0069] like Figure 2 and Figure 3 As shown, the centrifugal force loading device 1 of the edge plate damper includes a first guide member 7, a first fitting member 8, a second guide member 9, a second fitting member 10, a resisting member 11 and a loading device 12. The first fitting member 8 is movably matched with the first guide member 7, and can be guided by the first guide member 7 to move in the circumferential direction. The second guide member 9 is fixed to the first fitting member 8, and can move in the circumferential direction with the first fitting member 8. The second fitting member 10 is movably matched with the second guide member 9, and can be guided by the second guide member 9 to move in the radial direction and rotate in the radial direction. The resisting member 11 is used to resist the inner circumferential wall of the edge plate damper 6, and the resisting member 11 is rotatably connected to the second fitting member 10 to rotate around the first axial direction. The loading device 12 is used to apply a force toward the outer peripheral side to the second fitting member 10, and allow the second fitting member 10 to move in the radial direction and rotate in the radial direction.

[0070] When the loading device 12 is loaded, the loading device 12 applies a force toward the outer peripheral side to the second mating part 10, and the edge plate damper 6 limits and positions the resisting part 11, causing the resisting part 11 to change its position and posture. During this process, the second mating part 10 is forced by the loading device 12 to move radially on the second guide part 9, and the resisting part 11 is forced by the edge plate damper 6 to rotate around the first axial direction on the second mating part 10. The second mating part 10 is forced by the resisting part 11 to rotate radially on the second guide part 9, and the second guide part 9 is forced by the second mating part 10 to make the first mating part 8 move circumferentially on the first guide part 7, and finally the resisting part 11 is pressed against and fits the inner peripheral wall of the edge plate damper 6, and the resisting part 11 is pulled radially, applying a force accurately directed to the radial outside to the edge plate damper 6, and the simulated centrifugal force load is accurate.

[0071] like Figure 2 and Figure 3As shown, the first guide member 7 may include a slide rail 13, which extends in the circumferential direction and has a first arc-shaped outer peripheral wall 14 and a first arc-shaped inner peripheral wall 15. The first matching member 8 may include a first slider 16, which extends in the circumferential direction and has a second arc-shaped outer peripheral wall 17 and a second arc-shaped inner peripheral wall 18. The first slider 16 slidably matches the slide rail 13, the second outer peripheral wall 17 slidably matches the first peripheral wall 14, and the second inner peripheral wall 18 slidably matches the first inner peripheral wall 15, so that when the second guide member 9 is applied with force by the second matching member 10 as described above, the first slider 16 slides in the circumferential direction on the slide rail 13, thereby causing the first matching member 8 to move in the circumferential direction on the first guide member 7.

[0072] like Figure 2 and Figure 3 As shown, the second guide member 9 may include a first rod 19, and the first rod 19 extends radially. The second mating member 10 may include a sliding block 20, and the sliding block 20 is provided with a first hole 21. The first hole 21 is inserted into the first rod 19, and is slidably and rotationally matched with the first rod 19, so that when the second mating member 10 is subjected to force by the loading device 12 as described above, the sliding block 20 slides radially on the first rod 19, thereby causing the second mating member 10 to move radially on the second guide member 9, and also when the second mating member 10 is subjected to force by the push member 11 as described above, the sliding block 20 rotates radially on the first rod 19, thereby causing the second mating member 10 to rotate radially on the second guide member 9. The first rod 19 may be a round rod with an annular outer peripheral surface, and the first hole 21 may be a round hole with an annular inner peripheral surface, and they are inserted to achieve sliding and rotational fit.

[0073] like Figure 2 and Figure 3 As shown, the resisting member 11 can be rotatably supported on the second mating member 10 through the bearing 22. The second mating member 10 is provided with a bearing hole, and the bearing 22 is provided in the bearing hole. The resisting member 11 is inserted into the bearing hole and supported by the bearing 22, so that when the resisting member 11 is applied with force by the edge plate damper 6 as described above, the resisting member 11 rotates on the second mating member 10 around the first axial direction.

[0074] like Figure 3 As shown, the second matching member 10 may be provided with a second rod 23. The loading device 12 may include a wire rope sleeve 24. The wire rope sleeve 24 is sleeved with the second rod 23, the wire rope sleeve 24 is easily deformed, and there is a gap between the second rod 23 and the second rod 23. The second rod 23 is sleeved with the wire rope sleeve 24 relatively loosely, and the wire rope sleeve 24 has a small limiting and positioning effect on the second rod 23, and will not limit the second rod 23 from rotating radially. Therefore, when the second matching member 10 is subjected to force by the abutment member 11 as described above, the second matching member 10 is allowed to rotate radially on the second guide member 9. The second matching member 10 may be provided with a lifting lug, and the second rod 23 may be the top rod of the lifting lug.

[0075] like Figure 3 and Figure 5 As shown, the abutting member 11 may be provided with a pressing surface 25 on the outer peripheral wall. When the abutting member 11 abuts against and fits the inner peripheral wall of the edge plate damper 6, the pressing surface 25 abuts against and covers the inner peripheral wall of the edge plate damper 6. The pressing surface 25 applies force to all positions of the inner peripheral wall of the edge plate damper 6, so that the abutting member 11 applies force to the edge plate damper 6 evenly, avoiding the abutting member 11 from applying force unevenly to the edge plate damper 6, causing the edge plate damper 6 to bend and deform and change the friction contact area, and also avoiding the edge plate damper 6 to be modified to set a force-bearing structure, resulting in an inaccurate simulated working state of the edge plate damper 6 under a centrifugal force load. The abutting member 11 may be a rod, and the pressing surface 25 may protrude radially outward from the outer peripheral wall of the abutting member 11.

[0076] like Figure 6 As shown, the first slider 16 can be provided with a second hole 26, the first rod 19 is inserted into the second hole 26 and protrudes from the first slider 16, the first bolt 27 is threadedly connected to the first slider 16 and extends into the second hole 26, pressing against the first rod 19, thereby fixing the first rod 19 and preventing it from loosening, thereby fixing the second guide member 9 to the first mating member 8.

[0077] like Figures 2 to 4 As shown, the first peripheral wall 14 may be provided with a guide groove 28, which penetrates the first peripheral wall 14 in the radial direction and extends circumferentially on the first peripheral wall 14. The first rod 19 protrudes from the radially outer side of the first slider 16 and passes through the guide groove 28 and out of the first peripheral wall 14. The two side wall surfaces of the guide groove 28 can be slidably matched with the side wall surfaces of the first rod 19. When the first slider 16 slides circumferentially on the slide rail 13, the guide groove 28 guides the first rod 19 to slide circumferentially, and the side wall surface of the first rod 19 slides relative to the two side wall surfaces of the guide groove 28.

[0078] like Figure 3 As shown, the first guide member 7, the first matching member 8, the second guide member 9 and the second matching member 10 can be arranged on both sides of the first axial direction of the edge plate damper 6, the push member 11 connects the second matching members 10 on both sides of the first axial direction, and the loading device 12 is used to apply a force toward the outer peripheral side to the second matching members 10 on both sides of the first axial direction. This allows the push member 11 to apply force evenly to the entire length of the edge plate damper 6 in the first axial direction, avoiding uneven force applied by the push member 11 to the edge plate damper 6, causing the edge plate damper 6 to bend and deform, thereby changing the friction contact area, and causing the simulated working state of the edge plate damper 6 under the centrifugal force load to be inaccurate.

[0079] like Figures 2 to 5As shown, the centrifugal force loading device 1 of the edge plate damper may also include a fixture 29, which fixes the turbine blade test piece 3. The fixture 29 is provided with at least two tenons 30 along the circumferential direction, and the tenons 30 accommodate the tenons 31 of the turbine blade test piece 3. The tenons 30 are provided with bolt holes 33 at the bottom, and the second bolts 32 are threadedly connected with the bolt holes 33 and extend into the bottom of the tenons 30, pushing the tenons 31 of the turbine blade test piece 3 to be close to the tenons 30, thereby fixing the turbine blade test piece 3 and preventing it from loosening. The fixture 29 does not need to modify the structure of the turbine blade test piece 3, and is quick and convenient to disassemble and assemble, has a wide range of applications, and has a certain degree of adaptability. The fixture 29 can be arranged in the middle of two groups of first guide members 7, first matching members 8, second guide members 9, and second matching members 10, so that the first guide members 7, first matching members 8, second guide members 9, and second matching members 10 are arranged on both sides of the first axial direction of the edge plate damper 6 as mentioned above.

[0080] like Figure 1 and Figure 3 As shown, the loading device 12 may also include a steel wire rope 34 and a tension sensor 35. The centrifugal force loading device 1 of the edge plate damper is also provided with a gantry 37. The steel wire rope sleeve 24 is connected to the tension sensor 35 on the outer peripheral side through the steel wire rope 34. The tension sensor 35 is connected to the gantry 37 on the outer peripheral side through the steel wire rope 34. The gantry 37 is constructed by an I-beam and fixed to the ground. The gantry 37 is provided with a top fixed support end 36 on the top beam. The steel wire rope 34 is connected to the top fixed support end 36 to connect the gantry 37. The tension sensor 40 can apply a force toward the outer peripheral side to the second matching member 10 by tightening the steel wire rope 34, thereby loading the centrifugal force. The tension sensor 35 can accurately control the magnitude of the loaded centrifugal force. The direction of the loaded centrifugal force can be adjusted by adjusting the position of the steel wire rope 34 and the tension sensor 35 to meet different test simulation requirements.

[0081] like Figures 1 to 5 As shown, at least two first fittings 8, second guides 9, second fittings 10, abutments 11 and loading devices 12 are arranged along the circumferential direction, for loading centrifugal force on at least two edge plate dampers 6. This allows the edge plate damper centrifugal force loading device 1 to synchronously load centrifugal force on multiple edge plate dampers 6, simulating the working state of multiple circumferentially adjacent edge plate dampers 6 under centrifugal force load when the turbine blade rotates, and then simulating the vibration effect of adjacent turbine blades on the test turbine blade to which vibration input is applied in the turbine blade vibration test, so that the test results are more accurate. This also allows the number of turbine blade test pieces 3 and edge plate dampers 6 to be selected according to the test requirements, and the first fittings 8, second guides 9, second fittings 10, abutments 11 and loading devices 12 are arranged accordingly.

[0082] like Figures 1 to 5As shown, a plurality of first matching members 8 can be movably matched with a first guide member 7. A plurality of loading devices 12 can be connected to a gantry 37 on the outer peripheral side. In the illustrated embodiment, four first matching members 8, second guide members 9, second matching members 10, abutment members 11 and loading devices 12 are arranged along the circumferential direction, for applying centrifugal force to four edge plate dampers 6. Correspondingly, the fixture 29 is provided with five tongues and grooves 30 along the circumferential direction, for fixing five turbine blade test pieces 3.

[0083] like Figures 1 to 4 As shown, the centrifugal force loading device 1 of the edge plate damper can also be provided with a mounting platform 38 , and the mounting platform 38 is fixed to the ground, and the clamp 29 and the first guide member 7 can be fixed on the mounting platform 38 by a third bolt 39 .

[0084] The centrifugal force loading device 1 of the edge plate damper is easy and convenient to disassemble, assemble and modify. The centrifugal force loading position can be changed to match the structure of different turbine blade test pieces 3, and a two-, three- or five-unit modification design can be performed according to the number of turbine blade test pieces 3. It has a wide range of applications and low modification costs.

[0085] Although the present invention is disclosed as above by the embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention.

Claims

1. A centrifugal force loading device for edge plate dampers, used to load centrifugal force on edge plate dampers on the inner circumference of edge plates of circumferentially adjacent turbine blade test pieces, wherein the extending direction of the edge plate dampers is axial, and characterized in that include: a first guide member; a first matching member, movably matched with the first guide member, and guided by the first guide member to move in a circumferential direction; a second guide member, fixed to the first matching member; a second matching member, movably matched with the second guide member, and guided by the second guide member to move in the radial direction and rotate around the radial direction; A butt piece, used to butt against the inner peripheral wall of the edge plate damper, and rotatably connected to the second matching piece to rotate around the axial direction; as well as The loading device is used to apply a force to the second fitting member toward the outer circumference and allow the second fitting member to move in the radial direction and rotate around the radial direction.

2. The centrifugal force loading device for edge plate damper according to claim 1, characterized in that: The first guide member comprises a slide rail, the slide rail extends in the circumferential direction and has an outer peripheral wall and an inner peripheral wall; The first matching member includes a first slider, which extends in the circumferential direction and has an outer peripheral wall and an inner peripheral wall; The outer peripheral wall of the first sliding block is slidably matched with the outer peripheral wall of the sliding rail, and the inner peripheral wall of the first sliding block is slidably matched with the inner peripheral wall of the sliding rail.

3. The centrifugal force loading device for edge plate damper according to claim 1, characterized in that: The second guide member includes a first rod extending in a radial direction; The second matching piece comprises a sliding block, the sliding block is provided with a hole, the hole is inserted into the first rod, and is slidingly and rotationally matched with the first rod.

4. The centrifugal force loading device for edge plate damper according to claim 1, characterized in that: The abutment member is rotatably supported on the second matching member via a bearing.

5. The centrifugal force loading device for edge plate damper according to claim 1, characterized in that: The abutting piece is provided with an abutting surface on the outer peripheral wall, and the abutting surface is used to abut against and cover the inner peripheral wall of the edge plate damper.

6. The centrifugal force loading device for edge plate damper according to claim 1, characterized in that: The second fitting member is provided with a second rod, and the loading device comprises a wire rope sleeve, and the wire rope sleeve is sleeved on the second rod to allow the second fitting member to rotate radially.

7. The centrifugal force loading device for edge plate damper according to claim 1, characterized in that: The first guide member, the first matching member, the second guide member and the second matching member are used to be arranged on both axial sides of the edge plate damper, the resistance member connects the second matching members on both axial sides, and the loading device is used to apply force toward the outer peripheral side to the second matching members on both axial sides.

8. The centrifugal force loading device for edge plate damper according to claim 1, characterized in that: The centrifugal force loading device of the edge plate damper also includes a clamp, which is provided with at least two mortises along the circumferential direction, and the mortise is used to accommodate the tenon of the turbine blade test piece. The mortise is provided with a bolt at the bottom, and the bolt is used to push the tenon of the turbine blade test piece against the mortise.

9. The centrifugal force loading device for edge plate damper according to claim 1, characterized in that: At least two of the first matching member, the second guide member, the second matching member, the abutment member and the loading device are arranged along the circumferential direction for loading centrifugal force on at least two edge plate dampers.

10. A turbine blade vibration test device, characterized in that include: The centrifugal force loading device for the edge plate damper according to any one of claims 1 to 9; a vibration generator for applying a vibration input to the turbine blade test piece; as well as A test system for acquiring the vibration response of a turbine blade test piece.

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