A method for monitoring the bonding state of a dynamic coil of a large-thrust vibration table and a dynamic coil structure

Abstract

The present invention discloses a method for monitoring the bonding state of a dynamic coil of a large-thrust vibration table and a dynamic coil structure. A plurality of strain gauges are evenly spaced along the axial direction of the driving coil on the inner metal armor plate corresponding to the driving coil, and the plurality of strain gauges are located at the same circumferential position of the driving coil. The change in the stress value measured by each strain gauge determines whether debonding occurs between the driving coil and the inner metal armor plate, and the degree of debonding can be further determined by the proportion of stress exceeding the normal fluctuation range. The method for monitoring the bonding state of a dynamic coil of a large-thrust vibration table and a dynamic coil structure of the present invention can detect the degree of debonding between the driving coil and the metal armor plates on both sides when the degree of debonding is still relatively slight, thereby achieving early warning and avoiding further deterioration of the problem.

Description

Technical Field

[0001] The invention relates to the technical field of vibration tables, and in particular to a method for monitoring the bonding state of a dynamic coil of a large-thrust vibration table and a dynamic coil structure. Background Art

[0002] Electric vibration tables are widely used in reliability research and testing of complete products and parts in the fields of aviation, aerospace, weapons, electronics, ships, machinery, energy, chemicals, instruments and meters. The dynamic coil is one of the key components of the electric vibration table, which is mainly used to drive the vibration table to drive the table surface to move and generate vibration. The dynamic coil of the electric vibration table is generally made of enameled wires bonded and cured with epoxy resin glue on the inner and outer carbon fiber metal armor plates connected to the dynamic coil frame, and then the dynamic coil driving force is transmitted to the dynamic table surface in real time through the dynamic coil frame.

[0003] As electric vibration tables develop towards large-scale, the thrust demand for electric vibration tables has increased dramatically. For large-thrust vibration tables, during daily operation, the dynamic drive structure that generates driving force is often subjected to high-frequency, strong vibration and large loads. In actual use, the dynamic drive often falls off from the carbon fiber metal armor plate due to insufficient bonding strength, and then separates from the dynamic drive frame, causing damage to the dynamic drive.

[0004] At present, in various types of large-thrust electric vibration table dynamic coil structures, there is generally a lack of structures or methods that can monitor the bonding status of the driving dynamic coil and the metal armor plates on both sides in real time online. During actual use, when the driving dynamic coil is slightly debonded, no timely warning can be given, which affects the generation of vibration table thrust and test accuracy.

[0005] In addition, due to the failure to carry out timely maintenance, when the debonding phenomenon between the driving dynamic coil and the metal armor plates on both sides becomes more serious, it may even damage the driving coil, causing serious damage to the instrument and equipment, resulting in significant economic losses. Summary of the invention

[0006] In view of the above technical problems, the present invention proposes a method for monitoring the bonding status of a dynamic coil of a high-thrust vibration table and a dynamic coil structure, which can detect the debonding degree between the driving dynamic coil and the metal armor plates on both sides when it is still relatively slight, thereby achieving early warning and avoiding further deterioration of the problem.

[0007] In order to achieve the above technical objectives, the present invention adopts the following technical means:

[0008] A method for monitoring the bonding state of a dynamic coil of a large-thrust vibration table comprises the following steps:

[0009] Step S1: Divide the drive coil into equal parts along its axial length Each length is recorded as a unit length. Starting from the position of one unit length from the bottom of the driving coil, a strain gauge is pasted on the inner metal armor plate at every unit length upward. The pasting position corresponds to the equal-division point of the driving coil. A total of strain gauges and number them 1, 2, 3… ;

[0010] Step S2: According to the number of the strain gauge, set the first The actual stress at the equally divided points of the driving coil is , real-time monitoring of the actual stress of each strain gauge And the unit stress value at each position of the metal armor plate is calculated by formula (1): ,

[0011] , (1)

[0012] Step S3: Setting the first stress relative deviation demarcation coefficient ; Set the second stress relative deviation boundary coefficient ; Set the third stress relative deviation boundary coefficient ; Set the fourth stress relative deviation boundary coefficient ; The relationship between the four stress relative deviation boundary coefficients is: ;

[0013] Given The normal range of stress at the equally divided points of the drive coil is , real-time judgment Whether it is established, to determine whether there is debonding between the driving coil and the inner metal armor plate, .

[0014] Beneficial effect: During the normal operation of the vibration table, the stress on the armor plate will fluctuate, that is, the stress may increase slightly or decrease slightly, but it will fluctuate within a certain range. When the stress value on the armor plate exceeds the normal range, it can be determined that debonding occurs between the drive coil and the armor plate. The present invention provides a method for monitoring the bonding state of a dynamic coil of a large-thrust vibration table. By pasting a strain gauge on the inner side of a metal armor plate, when debonding occurs between the drive coil and the metal armor plate, even a very small relative displacement or deformation can cause a change in the resistance value of the strain gauge, and the degree of debonding can be further determined by the proportion of the stress exceeding the normal fluctuation range. The greater the proportion of the stress deviating from the normal range, the more severe the degree of debonding.

[0015] In an optional implementation, in step S3, if the actual stress at the first driving coil dividing point does not satisfy , it is judged that there is a debonding between the drive coil below the first drive coil dividing point and the inner metal armor plate, specifically:

[0016] Step A: Calculate the relative deviation of the stress at the first driving coil equal points ;

[0017] Step B: When the When , it is judged that there is a slight debonding between the driving coil and the inner metal armor plate;

[0018] When satisfied When , it is judged that moderate debonding occurs between the driving coil and the inner metal armor plate;

[0019] When satisfied When , it is judged that there is severe debonding between the driving coil and the inner metal armor plate.

[0020] Beneficial effect: The present invention further reduces the actual stress at the first driving coil dividing point to The case of is discussed separately because this case can only be the debonding between the drive coil below the first drive coil bisect point and the inner metal armor plate. It only needs to be determined by the relative deviation of the stress at the first drive coil bisect point. The extent of debonding can be determined by the range of the material.

[0021] In an optional implementation, in step S3, if The actual stress at the equally divided points of the drive coil does not satisfy , then determine its adjacent point Whether the point stress magnitude is within a given normal range, according to Whether the area where the drive coil and the inner metal armor plate are debonded is established. .

[0022] Beneficial effects: The actual stress at the equally divided points of the drive coil does not satisfy When the adjacent point Whether the point stress is within the given normal range, determine the area where debonding will inevitably occur between the drive coil and the inner armor plate. .

[0023] In an optional embodiment, if If established, then judge The driving coil is equally divided into two points There is a debonding between the drive coil and the inner metal armor plate between the points where the drive coils are equally divided. Specifically:

[0024] C1. Calculate the Relative deviation of stress at equally divided points of the driving coil ;

[0025] C2. When satisfied When , it is judged that there is a slight debonding between the driving coil and the inner metal armor plate; when When , it is judged that moderate debonding occurs between the driving coil and the inner metal armor plate; when It is judged that there is severe debonding between the driving coil and the inner metal armor plate.

[0026] Beneficial effects: If Established, description There is no debonding between the drive coil and the inner armor plate in the area below the equal division point of the first drive coil. The driving coil is equally divided into two points Debonding occurs between the driving coil and the inner armor plate between the points where the driving coils are equally divided.

[0027] In an optional embodiment, if If it is not established, then judge the Is the stress value of the point within the normal range? Point stress value satisfy When , stop judging and get value, ,according to The range of values ​​determines the area where debonding occurs between the drive coil and the inner metal armor plate, specifically:

[0028] like , then judge the The driving coil is equally divided into two points There is debonding between the driving coil and the inner metal armor plate between the equally divided points of the driving coil, and the relative deviation formula of the stress is used to calculate the first Relative deviation of stress at equally divided points of the driving coil , when satisfied When , it is judged that there is a slight debonding between the driving coil and the inner metal armor plate; when When , it is judged that there is moderate debonding between the driving coil and the inner metal armor plate; when When , it is judged that there is severe debonding between the driving coil and the inner metal armor plate;

[0029] like If it does not exist, it is judged that there is debonding between the drive coil below the first drive coil dividing point and the inner metal armor plate, and the relative deviation of the stress at the first drive coil dividing point is calculated according to the relative deviation formula of stress. , when satisfied When , it is judged that there is a slight debonding between the driving coil and the inner metal armor plate; when When , it is judged that moderate debonding occurs between the driving coil and the inner metal armor plate; when It is judged that there is severe debonding between the driving coil and the inner metal armor plate.

[0030] Beneficial effects: If Not true, indicating There is a debonding area between the drive coil and the inner armor plate below the equal division point of the drive coil, so it is necessary to continue to judge downward to determine the area that must be debonded with the inner armor plate. , explain The driving coil is equally divided into two points There is a debonding between the driving coil and the inner metal armor plate between the points where the first driving coil is equally divided. There is no debonding between the drive coil and the inner armor plate in the area below the drive coil dividing point; if It does not exist, indicating that there must be debonding between the drive coil below the first drive coil dividing point and the inner metal armor plate, and this has led to the debonding from the first drive coil dividing point to the first drive coil dividing point. The stress values ​​of all equally divided points between the driving coils are not within the normal range.

[0031] In an optional embodiment, the relative deviation of the stress at the equally divided points of the drive coil is , the relative deviation of stress at each driving coil equal point The calculation formula is:

[0032] ,in,

[0033] is the theoretical stress at the equally divided points of the driving coils of the metal armor plate where the strain gauges are attached, and is obtained by equation (2):

[0034] (2).

[0035] Beneficial effect: By dividing the difference between the theoretical stress and the actual stress at each driving coil dividing point by the theoretical stress, the degree of deviation between the actual stress and the theoretical stress is obtained. The greater the degree of deviation, the more serious the degree of debonding between the driving coil and the inner metal armor plate in the area corresponding to the driving coil dividing point.

[0036] In an optional embodiment, the first stress relative deviation demarcation coefficient , ; Second stress relative deviation boundary coefficient , ; The third stress relative deviation threshold coefficient , ; Fourth stress relative deviation threshold coefficient , .

[0037] Beneficial effect: Different large-thrust vibration tables have different stress fluctuations on their armor plates during normal operation, so four ranges of stress relative deviation boundary coefficients are given.

[0038] In an optional implementation, taking into account the influence of the axial length of the vibration table driving coil and the number of pasted strain gauges on the bonding strength, the number of pasted strain gauges is 5 to 10.

[0039] The present invention further discloses a dynamic coil structure of a large-thrust vibration table capable of monitoring the bonding state, comprising a dynamic coil frame, a driving coil, an inner metal armor plate, an outer metal armor plate and a strain gauge; wherein the inner metal armor plate and the outer metal armor plate are fixed on the left and right sides of the dynamic coil frame;

[0040] The driving coil is connected to the dynamic coil frame and is clamped and fixed by the inner metal armor plate and the outer metal armor plate;

[0041] The strain gauge is fixed on the inner metal armor plate and includes a plurality of strain gauges, which are evenly spaced apart along the axial direction of the inner metal armor plate, and the plurality of spaced apart strain gauges are located at the same circumferential position on the inner metal armor plate.

[0042] In an optional implementation, the inner metal armor plate and the outer metal armor plate are respectively bonded and cured on the dynamic coil frame by epoxy resin glue;

[0043] The driving coil is bonded and cured on the dynamic coil frame by epoxy resin glue;

[0044] The strain gauge is bonded and cured on the inner metal armor plate by epoxy resin glue.

[0045] In summary, the present invention provides a method for monitoring the bonding state of a dynamic coil of a large-thrust vibration table and a dynamic coil structure, which can effectively detect the debonding between the drive coil and the metal armor plates on both sides, and can further determine the degree of debonding by the proportion of stress exceeding the normal fluctuation range, so that the debonding degree between the drive coil and the inner metal armor plate can be detected when it is still relatively mild, thereby achieving early warning and avoiding further deterioration of the problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the dynamic structure of the present invention;

[0047] 1. Dynamic coil frame, 2. Outer metal armor plate, 3. Driving coil, 4. Inner metal armor plate, 5. Strain gauge;

[0048] Figure 2 It is the principle diagram of the monitoring method of the present invention;

[0049] Figure 3 The diagram for pasting strain gauges and numbering the points at each equal point;

[0050] Figure 4 A flow chart for judging the situation that the stress of the first driving coil dividing point is not within the normal range and the stress of each driving coil dividing point is within the normal range;

[0051] Figure 5 For the The judgment flow chart of the situation where the stress of the equally divided points of the driving coil is not within the normal range, . DETAILED DESCRIPTION

[0052] The present invention will be further described below in conjunction with the embodiments in the accompanying drawings so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0053] like Figure 4 As shown, the present invention provides a method for monitoring the bonding state of a dynamic coil of a large thrust vibration table, comprising the following steps:

[0054] Step S1: Divide the drive coil into equal parts along its axial length Each length is recorded as a unit length. Starting from the position of one unit length from the bottom of the driving coil, a strain gauge is pasted on the inner metal armor plate at every unit length upward. The pasting position corresponds to the equal-division point of the driving coil. A total of strain gauges and number them 1, 2, 3… ;

[0055] Step S2: According to the number of the strain gauge, set the first The actual stress at the equally divided points of the driving coil is , real-time monitoring of the actual stress of each strain gauge And the unit stress value at each position of the metal armor plate is calculated by formula (1): ,

[0056] , (1)

[0057] Step S3: Setting the first stress relative deviation demarcation coefficient ; Set the second stress relative deviation boundary coefficient ; Set the third stress relative deviation boundary coefficient ; Set the fourth stress relative deviation boundary coefficient ; The relationship between the four stress relative deviation boundary coefficients is: ;

[0058] Given The normal range of stress at the equally divided points of the drive coil is , real-time judgment Whether it is established, to determine whether there is debonding between the driving coil and the inner metal armor plate, .

[0059] The present invention discloses a method for monitoring the bonding state of a dynamic coil of a large thrust vibration table. The strain gauge is very sensitive to tiny strains. When debonding occurs between the driving coil and the metal armor plate, even very tiny relative displacement or deformation can cause a change in the resistance value of the strain gauge. During the normal operation of the vibration table, the stress on the armor plate will fluctuate, that is, the stress may increase slightly or decrease slightly, but it will fluctuate within a certain range. When the stress value on the armor plate exceeds the normal range, it can be determined that debonding occurs between the driving coil and the armor plate, and the degree of debonding can be further determined by the proportion of stress exceeding the normal fluctuation range. The greater the proportion of stress deviation from the normal range, the more severe the degree of debonding. The present invention defines four stress relative deviation boundary coefficients to determine whether the degree of debonding is mild debonding, moderate debonding or severe debonding.

[0060] In an optional embodiment, in step S3, if the actual stress at the first driving coil dividing point does not satisfy , it is judged that there is a debonding between the drive coil below the first drive coil dividing point and the inner metal armor plate, specifically:

[0061] Step A: Calculate the relative deviation of the stress at the first driving coil equal points ;

[0062] Step B: When the When , it is judged that there is a slight debonding between the driving coil and the inner metal armor plate;

[0063] When satisfied When , it is judged that moderate debonding occurs between the driving coil and the inner metal armor plate;

[0064] When satisfied When , it is judged that there is severe debonding between the driving coil and the inner metal armor plate.

[0065] It is understandable that the present invention further states that only the actual stress at the first driving coil dividing point does not satisfy The case of is discussed separately because this case can only be the debonding between the drive coil below the first drive coil bisect point and the inner metal armor plate. It only needs to be determined by the relative deviation of the stress at the first drive coil bisect point. The extent of debonding can be determined by the range of the material.

[0066] like Figure 5 As shown, in a method for monitoring the bonding state of a dynamic coil of a large thrust vibration table of the present invention, wherein: , No. The method for judging the situation that the stress of the equally divided points of the driving coil is not within the normal range is:

[0067] In step S3, if The actual stress at the equally divided points of the drive coil does not satisfy , then determine its adjacent point Whether the point stress magnitude is within a given normal range, according to Whether it is established to judge whether there is a debonding area between the drive coil and the inner metal armor plate. The actual stress at the equally divided points of the drive coil does not satisfy When the present invention further determines the adjacent point Whether the point stress magnitude is within a given normal range determines the area where debonding is bound to occur between the drive coil and the inner armor plate.

[0068] In an optional embodiment, if If established, then judge The driving coil is equally divided into two points There is a debonding between the drive coil and the inner metal armor plate between the points where the drive coils are equally divided. Specifically:

[0069] C1. Calculate the Relative deviation of stress at equally divided points of the driving coil ;

[0070] C2. When satisfied When , it is judged that there is a slight debonding between the driving coil and the inner metal armor plate; when When , it is judged that moderate debonding occurs between the driving coil and the inner metal armor plate; when It is judged that there is severe debonding between the driving coil and the inner metal armor plate.

[0071] It is understandable that if Established, description There is no debonding between the drive coil and the inner armor plate in the area below the equal division point of the first drive coil. The driving coil is equally divided into two points Debonding occurs between the driving coil and the inner armor plate between the points where the driving coils are equally divided.

[0072] In an optional embodiment, if If it is not established, then judge the Is the stress value of the point within the normal range? Point stress value satisfy When , stop judging and get value, ,according to The range of values ​​determines the area where debonding occurs between the drive coil and the inner metal armor plate, specifically:

[0073] like , then judge the The driving coil is equally divided into two points There is debonding between the driving coil and the inner metal armor plate between the equally divided points of the driving coil, and the relative deviation formula of the stress is used to calculate the first Relative deviation of stress at equally divided points of the driving coil , when satisfied When , it is judged that there is a slight debonding between the driving coil and the inner metal armor plate; when When , it is judged that there is moderate debonding between the driving coil and the inner metal armor plate; when When , it is judged that there is severe debonding between the driving coil and the inner metal armor plate.

[0074] like If it does not exist, it is judged that there is debonding between the drive coil below the first drive coil dividing point and the inner metal armor plate, and the relative deviation of the stress at the first drive coil dividing point is calculated according to the relative deviation formula of stress. , when satisfied When , it is judged that there is a slight debonding between the driving coil and the inner metal armor plate; when When , it is judged that moderate debonding occurs between the driving coil and the inner metal armor plate; when It is judged that there is severe debonding between the driving coil and the inner metal armor plate.

[0075] It is understandable that if Not true, indicating There is a debonding area between the drive coil and the inner armor plate below the equal division point of the drive coil, so it is necessary to continue to judge downward to determine the area that must be debonded with the inner armor plate. , explain The driving coil is equally divided into two points There is a debonding between the driving coil and the inner metal armor plate between the points where the first driving coil is equally divided. There is no debonding between the drive coil and the inner armor plate in the area below the drive coil dividing point; if It does not exist, indicating that there must be debonding between the drive coil below the first drive coil dividing point and the inner metal armor plate, and this has led to the debonding from the first drive coil dividing point to the first drive coil dividing point. The stress values ​​of all equally divided points between the driving coils are not within the normal range.

[0076] In an optional embodiment, considering the axial length of the vibration table driving coil and the influence of the number of pasted strain gauges on the pasting strength, the number of pasted strain gauges is 5 to 10.

[0077] In an optional embodiment, the relative deviation of the stress at the equally divided points of the driving coil is , the relative deviation of stress at each driving coil equal point The calculation formula is:

[0078] ,in,

[0079] is the theoretical stress at the equally divided points of the driving coils of the metal armor plate where the strain gauges are attached, and is obtained by equation (2):

[0080] (2).

[0081] It can be understood that the degree of deviation between the actual stress and the theoretical stress is obtained by dividing the difference between the theoretical stress and the actual stress at each equally divided point of the driving coil by the theoretical stress. The greater the degree of deviation, the more serious the degree of debonding between the driving coil and the inner metal armor plate in the area corresponding to the equally divided point of the driving coil.

[0082] In an optional embodiment, the first stress relative deviation demarcation coefficient , ; Second stress relative deviation boundary coefficient , ; The third stress relative deviation threshold coefficient , ; Fourth stress relative deviation threshold coefficient , .

[0083] like Figure 1 and Figure 2As shown, the present invention further provides a large-thrust vibration table dynamic coil structure capable of monitoring the bonding state between a driving coil and metal armor plates on both sides, comprising a dynamic coil frame 1, a driving coil 3, an inner metal armor plate 4, an outer metal armor plate 2 and a strain gauge 5; wherein the inner metal armor plate 4 and the outer metal armor plate 2 are bonded and cured on the dynamic coil frame 1 by epoxy resin glue; the driving coil 3 is bonded and cured on the dynamic coil frame 1 by epoxy resin glue, and is clamped and fixed by the inner metal armor plate 4 and the outer metal armor plate 2; the strain gauge 5 is bonded and cured on the inner metal armor plate 4 by epoxy resin glue, and the strain gauge 5 is pasted on the same circumferential position of different axial positions of the inner metal armor plate 4, and multiple strain gauges 5 are pasted at equal distances.

[0084] In summary, the present invention provides a method for monitoring the bonding state of a dynamic coil of a large-thrust vibration table and a dynamic coil structure, which can effectively detect the debonding between the drive coil and the metal armor plates on both sides, and can further determine the degree of debonding by the proportion of stress exceeding the normal fluctuation range, so that the debonding degree between the drive coil and the inner metal armor plate can be detected when it is still relatively mild, thereby achieving early warning and avoiding further deterioration of the problem.

[0085] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Various changes that can be made within the knowledge scope of technicians in the relevant technical field without departing from the spirit of the present invention are all within the protection scope of the claims of the present invention.

Claims

1. A method for monitoring the bonding state of a dynamic coil of a large thrust vibration table, characterized in that: The steps include: Step S1: Divide the drive coil into equal parts along its axial length Each length is recorded as a unit length. Starting from the position of one unit length from the bottom of the driving coil, a strain gauge is pasted on the inner metal armor plate at every unit length upward. The pasting position corresponds to the equal-division point of the driving coil. A total of strain gauges and number them 1, 2, 3… ; Step S2: According to the number of the strain gauge, set the first The actual stress at the equally divided points of the driving coil is , real-time monitoring of the actual stress of each strain gauge And the unit stress value of each equally divided point of the driving coil on the metal armor plate is calculated by formula (1): , ， （1） Step S3: Setting the first stress relative deviation demarcation coefficient ; Set the relative deviation coefficient of the second stress ; Set the third stress relative deviation threshold coefficient ; Set the fourth stress relative deviation threshold coefficient ; The relationship between the four stress relative deviation boundary coefficients is: ; Given a metal armor plate The normal range of stress at the equally divided points of the drive coil is , real-time judgment Whether it is established, to determine whether there is debonding between the driving coil and the inner metal armor plate, .

2. The method for monitoring the bonding state of the dynamic coil of a high-thrust vibration table according to claim 1 is characterized in that: In step S3, if the actual stress at the first driving coil dividing point does not satisfy , it is judged that there is a debonding between the drive coil below the first drive coil dividing point and the inner metal armor plate, specifically: Step A: Calculate the relative deviation of the stress at the first driving coil equal points ; Step B: When the When , it is judged that there is a slight debonding between the driving coil and the inner metal armor plate; When satisfied When , it is judged that moderate debonding occurs between the driving coil and the inner metal armor plate; When satisfied When , it is judged that there is severe debonding between the driving coil and the inner metal armor plate.

3. The method for monitoring the bonding state of the dynamic coil of a high-thrust vibration table according to claim 1 is characterized in that: In step S3, if the metal armor plate The actual stress at the equally divided points of the drive coil does not satisfy , then determine its adjacent point Whether the point stress magnitude is within a given normal range, according to Whether the area where the drive coil and the inner metal armor plate are debonded is established. .

4. The method for monitoring the bonding state of the dynamic coil of a high-thrust vibration table according to claim 3 is characterized in that: like If established, then judge The driving coil is equally divided into two points There is a debonding between the drive coil and the inner metal armor plate between the points where the drive coils are equally divided. Specifically: C1. Calculate the Relative deviation of stress at equally divided points of the driving coil ; C2. When satisfied When , it is judged that there is a slight debonding between the driving coil and the inner metal armor plate; when When , it is judged that moderate debonding occurs between the driving coil and the inner metal armor plate; when It is judged that there is severe debonding between the driving coil and the inner metal armor plate.

5. The method for monitoring the bonding state of the dynamic coil of a high-thrust vibration table according to claim 3 is characterized in that: like If it is not established, then judge the Is the stress value of the point within the normal range? Point stress value satisfy When , stop judging and get value, ,according to The range of values ​​determines the area where debonding occurs between the drive coil and the inner metal armor plate. Specifically, If exists , then judge the The driving coil is equally divided into two points There is debonding between the driving coil and the inner metal armor plate between the equally divided points of the driving coil, and the relative deviation formula of the stress is used to calculate the first Relative deviation of stress at equally divided points of the driving coil , when satisfied When , it is judged that there is a slight debonding between the driving coil and the inner metal armor plate; When satisfied When , it is judged that moderate debonding occurs between the driving coil and the inner metal armor plate; When satisfied When , it is judged that there is severe debonding between the driving coil and the inner metal armor plate; If not present , it is determined that there is debonding between the drive coil below the first drive coil dividing point and the inner metal armor plate, and the relative deviation of the stress at the first drive coil dividing point is calculated according to the relative deviation formula of stress , when satisfied When , it is judged that there is a slight debonding between the driving coil and the inner metal armor plate; when When , it is judged that moderate debonding occurs between the driving coil and the inner metal armor plate; when It is judged that there is severe debonding between the driving coil and the inner metal armor plate.

6. The method for monitoring the bonding state of the dynamic coil of a high-thrust vibration table according to claim 1 is characterized in that: The relative deviation of the stress at the equally divided points of the driving coil is: , the relative deviation of stress at each driving coil equal point The calculation formula is: ,in, is the theoretical stress at each equally divided point of the driving coil on the metal armor plate, which can be obtained by formula (2): （2）。 7. The method for monitoring the bonding state of the dynamic coil of a high-thrust vibration table according to claim 1 is characterized in that: First stress relative deviation coefficient , ; The second stress relative deviation coefficient , ; The third stress relative deviation coefficient , ; Fourth stress relative deviation threshold coefficient , .

8. The method for monitoring the bonding state of the dynamic coil of a high-thrust vibration table according to claim 1 is characterized in that: The number of the bonded strain gauges is 5 to 10.

9. A high-thrust vibration table dynamic coil structure, applied to the high-thrust vibration table dynamic coil bonding state monitoring method described in any one of claims 1 to 8, characterized in that: It comprises a dynamic coil frame (1), a driving coil (3), an inner metal armor plate (4), an outer metal armor plate (2) and a strain gauge (5); wherein the inner metal armor plate (4) and the outer metal armor plate (2) are fixed on the left and right sides of the dynamic coil frame (1); The driving coil (3) is connected to the dynamic coil frame (1) and is clamped and fixed by an inner metal armor plate (4) and an outer metal armor plate (2); The strain gauge (5) is fixedly connected to the inner metal armor plate (4), and comprises a plurality of strain gauges (5), which are evenly spaced apart along the axial direction of the inner metal armor plate on the inner metal armor plate (4), and the plurality of spaced apart strain gauges (5) are located at the same circumferential position on the inner metal armor plate.

10. The large-thrust vibration table dynamic structure according to claim 9, characterized in that: The inner metal armor plate (4) and the outer metal armor plate (2) are respectively bonded and cured on the dynamic coil frame (1) by epoxy resin glue; The driving coil (3) is bonded and cured on the dynamic coil frame (1) by epoxy resin glue; The strain gauge (5) is bonded and cured on the inner metal armor plate (4) by epoxy resin glue.

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