Method and system for evaluating anchoring quality under vibration working condition

Abstract

The invention discloses a method and a system for evaluating anchoring quality under a vibration working condition in the technical field of construction detection, and aims to solve the technical problem that the existing anchoring quality evaluation method and system are difficult to evaluate the quality of a ground anchor on the premise of not damaging the ground anchor. The method comprises the steps that first inherent frequencies under different drawing loads are arranged into a first data table, the first inherent frequencies corresponding to the tested drawing loads are found in the first data table, and evaluation of the anchoring quality is obtained according to the difference value between the corresponding first inherent frequencies and second inherent frequencies, according to the method and the system for evaluating the anchoring quality under the vibration working condition, provided by the invention, on the premise that the ground anchor to be evaluated is not damaged, whether the ground anchor to be evaluated and the qualified sample ground anchor have similar properties under the non-destructive test drawing load or not is determined by utilizing the difference value between the first inherent frequency and the second inherent frequency; and the quality of the to-be-evaluated ground anchor is referenced and evaluated by using the first inherent frequency of the qualified sample ground anchor.

Description

Technical Field

[0001] The invention relates to a method and system for evaluating anchoring quality under vibration conditions, and belongs to the technical field of construction detection. Background Art

[0002] Rock anchor is a common anchoring technology, mainly used to enhance the stability and bearing capacity of the structure. The bearing capacity of the anchor is related to the safety and service life of the structure, so the anchor bearing capacity needs to be tested. Common bearing capacity testing methods include static load test, dynamic load test, pull-out test, etc. However, the traditional testing method belongs to the destructive bearing capacity testing method, and can only be applied to a few samples, and it is impossible to test the anchor bearing capacity of all construction anchors.

[0003] Therefore, it is difficult for existing anchoring quality assessment methods and systems to assess the quality of the anchor without damaging the anchor. Summary of the invention

[0004] The purpose of the present application is to overcome the deficiencies in the prior art and to provide a method and system for evaluating the anchoring quality under vibration conditions for evaluating the quality of a ground anchor without damaging the ground anchor.

[0005] In order to achieve the above objectives, this application is implemented by adopting the following technical solutions:

[0006] In a first aspect, the present application provides a method for evaluating anchoring quality under vibration conditions, comprising:

[0007] Obtain the first natural frequency of the qualified sample anchor under different pull-out loads;

[0008] Arrange the first natural frequencies under different pulling loads into a first data table;

[0009] Obtaining the second natural frequency of the anchor to be evaluated under the test pull-out load;

[0010] The first natural frequency corresponding to the test pull-out load is found in the first data table, and the evaluation of the anchoring quality is obtained according to the difference between the corresponding first natural frequency and the second natural frequency.

[0011] In some embodiments of the first aspect, obtaining the first natural frequency of the qualified sample anchor under different pull-out loads includes:

[0012] Under the same pull-out load, obtain the corresponding axial acceleration response data of the qualified sample anchor when it traverses the excitation vibration loads of different frequencies;

[0013] Performing data conversion on the axial acceleration response data to obtain a frequency spectrum diagram;

[0014] The peak frequency in the frequency spectrum is taken as the first natural frequency corresponding to the current pulling load.

[0015] In some embodiments of the first aspect, a sampling frequency of the axial acceleration response data is not less than ten times the frequency of the excitation vibration load.

[0016] In some embodiments of the first aspect, performing data conversion on the axial acceleration response data to obtain a frequency spectrum diagram includes:

[0017] Arranging the axial acceleration response data into an acceleration signal based on the time domain in the time domain;

[0018] The acceleration signal based on the time domain is subjected to a fast Fourier transform to obtain a complex representation of the frequency domain signal. The formula for obtaining the complex representation of the frequency domain signal is as follows:

[0019] ,

[0020] In the formula, is the complex representation of the frequency domain signal, is a single acceleration data in the acceleration signal based on the time domain, is the counting sequence number of the acceleration data, is the acceleration signal in the time domain Acceleration data, is an imaginary unit, is the frequency index, The value range is [0, ], is the number of acceleration data in the acceleration signal in the time domain;

[0021] extracting a magnitude spectrum from the complex representation of the frequency domain signal;

[0022] Acquire a frequency corresponding to the frequency index according to a sampling frequency of the axial acceleration response data;

[0023] A frequency spectrum is plotted based on the frequency and amplitude spectra.

[0024] In some embodiments of the first aspect, the amplitude spectrum is obtained by calculating:

[0025] ,

[0026] In the formula, is the amplitude spectrum, is the real part of the complex representation of the frequency domain signal, is the imaginary part of the complex representation of the frequency domain signal.

[0027] In some embodiments of the first aspect, the frequency is calculated by the following formula:

[0028] ,

[0029] In the formula, is the frequency, is the sampling frequency of the axial acceleration response data.

[0030] In a second aspect, the present application also provides an evaluation system for anchoring quality under vibration conditions, comprising:

[0031] A controller is used to execute the method for evaluating the anchoring quality under vibration conditions described in any one of the embodiments of the first aspect.

[0032] In some embodiments of the second aspect, further comprising

[0033] An acceleration sensor, connected to the controller signal, for collecting axial acceleration response data corresponding to the qualified sample anchor when traversing excitation vibration loads of different frequencies;

[0034] The electromagnetic exciter is connected to the controller signal and is used to excite the qualified sample anchor to vibrate.

[0035] In a third aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method for evaluating anchoring quality under vibration conditions as described in any one of the embodiments of the first aspect.

[0036] In a fourth aspect, the present application also provides a computer program product, comprising a computer program / instructions, characterized in that when the computer program / instructions are executed by a processor, the steps of the method for evaluating anchoring quality under vibration conditions described in any embodiment of the first aspect are implemented.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The method and system for evaluating anchoring quality under vibration conditions provided in this embodiment can use the difference between the first natural frequency and the second natural frequency to determine whether the anchor to be evaluated and the qualified sample anchor have similar properties under a non-destructive test pull-out load without destroying the anchor to be evaluated, and then use the first natural frequency of the qualified sample anchor to reference and evaluate the quality of the anchor to be evaluated. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 is a flowchart of the steps of the method for evaluating anchoring quality under vibration conditions provided in this embodiment;

[0041] Figure 2 is a schematic diagram of the structure of the anchoring quality evaluation system under vibration conditions provided in this embodiment;

[0042] In the figure: 1. controller; 2. acceleration sensor; 3. electromagnetic exciter. DETAILED DESCRIPTION

[0043] It should be noted that: "Qualified sample ground anchor" refers to the ground anchor that will obtain a qualified result after the anchoring quality assessment. In addition, the "qualified sample ground anchor" and the "ground anchor to be assessed" should be of the same model and configuration.

[0044] The technical solution of the present invention is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0045] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0046] Embodiment 1:

[0047] Figure 1 This is a flow chart of a method for evaluating anchor quality under vibration conditions in Embodiment 1 of the present invention. This flow chart only shows the logical sequence of the method described in this embodiment. In other possible embodiments of the present invention, different methods may be used without conflict. Figure 1 The steps shown or described are accomplished in the order shown.

[0048] The method for evaluating anchoring quality under vibration conditions provided in this embodiment can be applied to a terminal and can be executed only by a computer or a system consisting of a computer and an intermediate control device connecting an experimental apparatus and a sensor. Figure 1The method of this implementation specifically includes the following steps:

[0049] Obtain the first natural frequency of the qualified sample anchor under different pull-out loads;

[0050] Arrange the first natural frequencies under different pulling loads into a first data table;

[0051] Obtaining the second natural frequency of the anchor to be evaluated under the test pull-out load;

[0052] The first natural frequency corresponding to the test pull-out load is found in the first data table, and the evaluation of the anchoring quality is obtained according to the difference between the corresponding first natural frequency and the second natural frequency.

[0053] In this embodiment, only qualified sample anchors can be subjected to pull-out load tests of different sizes. The multiple first natural frequencies collected generally include stages such as pull-out load of 0, pull-out load within a set working range and pull-out failure (exceeding the design value). Technical personnel in this field can find qualified sample anchors that meet the design requirements from sample anchors that have not been evaluated by testing the anchors. When obtaining the second natural frequency of the anchor to be evaluated under the test pull-out load, the second natural frequency of the anchor to be evaluated is only tested and obtained when the anchor to be evaluated and the pull-out load are within the set working range. This test will not cause pull-out failure. Feasible solutions include: placing the anchor to be evaluated on a test bench for testing to obtain the second natural frequency, installing the anchor to be evaluated directly on the construction site, and using the actual pull-out load generated by the installation site load on the anchor to be evaluated as the test pull-out load and putting it into the first data table for comparison.

[0054] This embodiment takes into account that there is a physical connection between the second natural frequencies of the anchor to be evaluated under different pull-out loads. If the second natural frequency of the anchor to be evaluated under a non-destructive test pull-out load is the same as the first natural frequency corresponding to a pull-out load of the same magnitude in the first data table, or the difference is less than a threshold, then it is determined that the performance of the anchor to be evaluated and the qualified sample anchor under a larger (potentially destructive) pull-out load is similar, and the anchor to be evaluated can be evaluated as qualified based on the comparison result of the first natural frequency and the second natural frequency; if the difference between the second natural frequency of the anchor to be evaluated under a non-destructive test pull-out load and the first natural frequency corresponding to a pull-out load of the same magnitude in the first data table is greater than a threshold, the quality of the anchor to be evaluated cannot be evaluated based on the qualified sample anchor, and the anchor to be evaluated may be unqualified.

[0055] In summary, the method for evaluating anchoring quality under vibration conditions provided in this embodiment can, without destroying the anchor to be evaluated, use the difference between the first natural frequency and the second natural frequency to determine whether the anchor to be evaluated and the qualified sample anchor have similar properties under a non-destructive test pull-out load, and then use the first natural frequency of the qualified sample anchor to reference and evaluate the quality of the anchor to be evaluated.

[0056] Embodiment 2:

[0057] This embodiment provides an evaluation method for anchoring quality under vibration conditions. This embodiment is optimized on the basis of Embodiment 1 to improve the technical effect and refine the technical solution. For contents not fully described in this embodiment, please refer to Embodiment 1.

[0058] The first natural frequency is not easy to obtain directly. As one embodiment, the first natural frequency of the qualified sample anchor under different pull-out loads is obtained, including, under the same pull-out load, obtaining the corresponding axial acceleration response data of the qualified sample anchor when traversing the excitation vibration loads of different frequencies (generally from a few hertz to tens of hertz); converting the axial acceleration response data to obtain a spectrum diagram; and taking the peak frequency in the spectrum diagram as the first natural frequency corresponding to the current pull-out load. According to the above scheme, the first natural frequency of the qualified sample anchor under different pull-out loads is tested.

[0059] The axial acceleration of the qualified sample ground anchor is easily obtainable, so this embodiment uses the axial acceleration response data of the qualified sample ground anchor to produce a spectrum diagram. The spectrum diagram represents the vibration amplitude spontaneously generated by the qualified sample ground anchor under the pull-out load and collected under the action of different excitation vibrations. The peak value represents the resonance between the qualified sample ground anchor and the excitation source, and this frequency is identified as the first natural frequency.

[0060] As one embodiment, the sampling frequency of the axial acceleration response data is not less than ten times the frequency of the excitation vibration load to ensure the accuracy of the data.

[0061] This embodiment also provides a specific method for obtaining a frequency spectrum diagram according to the axial acceleration response data, including:

[0062] The axial acceleration response data (usually expressed in the form of discrete samples) is sorted into an acceleration signal based on the time domain in the time domain; after sorting, the data usually needs to be denoised. In order to reduce the edge effect, a window function can be applied to smooth the acceleration signal;

[0063] The fast Fourier transform of the acceleration signal based on the time domain is performed to obtain the complex representation of the frequency domain signal. The core point of this step is to use the divide-and-conquer method to recursively decompose the data into small blocks, thereby greatly reducing the amount of calculation; the formula for obtaining the complex representation of the frequency domain signal is as follows:

[0064] ,

[0065] In the formula, is the complex representation of the frequency domain signal, is a single acceleration data in the acceleration signal based on the time domain, is the counting sequence number of the acceleration data, is the acceleration signal in the time domain Acceleration data, is an imaginary unit, is the frequency index, The value range is [0, ], is the number of acceleration data in the acceleration signal in the time domain;

[0066] Extract the magnitude spectrum from the complex representation of the frequency domain signal;

[0067] Acquire the frequency corresponding to the frequency index according to the sampling frequency of the axial acceleration response data;

[0068] Plot a frequency spectrum based on its frequency and amplitude spectra.

[0069] The spectrum diagram shows the energy distribution at different frequencies. In the spectrum diagram, the first natural frequency will show an obvious peak. The main peak is identified in the spectrum diagram, and the corresponding frequency is used as the first natural frequency of the qualified sample anchor under the pull-out load.

[0070] The pull-out loads under different pull-out loads are sorted out, and the first data table constructed can be presented in the mapping relationship between the first natural frequency and the pull-out load. The table can also be further divided into three stages: before the pull-out bearing capacity test (that is, the pull-out load is 0), when the standard bearing capacity is reached (for example, the pull-out load reaches the required design value of the drawing or the factory standard value of the anchor), and after the destruction unloading, so as to facilitate later research.

[0071] As one embodiment, the amplitude spectrum is obtained by calculating the following formula:

[0072] ,

[0073] In the formula, is the amplitude spectrum, is the real part of the complex representation of the frequency domain signal, is the imaginary part of the complex representation of the frequency domain signal;

[0074] The frequency is calculated by the following formula:

[0075] ,

[0076] In the formula, is the frequency, is the sampling frequency of the axial acceleration response data.

[0077] As one embodiment, the above step of extracting the first natural frequency can be implemented in MATLAB software. Based on MATLAB software, this embodiment provides a more specific implementation process:

[0078] According to the formation conditions and surrounding rock quality, a qualified sample anchor with a diameter of 32mm and a length of 1m is used in accordance with the specification requirements;

[0079] An electromagnetic exciter 3 is used to apply an axial vibration load of the anchor bar to the anchor head of the qualified sample. The vibration frequency applied by the electromagnetic exciter 3 is 10 Hz and the amplitude is 2 mm.

[0080] Arrange acceleration sensors 2 around the qualified sample anchor (at the connection point with the anchored object, at the mortar pouring connection around the anchor rod), apply a pull-out load from 0 to the qualified sample anchor until it is destroyed and unloaded, and test and record the axial acceleration response data of the anchor bar at the anchor hole position under different pull-out loads;

[0081] The vibration modal parameters of the sample anchor, including natural frequency and vibration mode, were extracted by performing Fourier transform on the vibration data in MATLAB software.

[0082] The algorithm code is as follows:

[0083] import numpy as np

[0084] import matplotlib.pyplot as plt

[0085] # Generate sample acceleration data (such as a sine wave)

[0086] fs = 1000 # sampling frequency

[0087] t = np.linspace(0, 1, fs, endpoint=False) # time vector

[0088] frequency = 5 # signal frequency

[0089] x = np.sin(2 * np.pi * frequency * t) # acceleration signal

[0090] # Apply FFT

[0091] N = len(x)

[0092] X = np.fft.fft(x)

[0093] frequencies = np.fft.fftfreq(N, 1 / fs)

[0094] # Take the absolute value and keep only the positive frequency part

[0095] X_magnitude = np.abs(X)[:N / / 2]

[0096] frequencies = frequencies[:N / / 2]

[0097] # Plot the results

[0098] plt.plot(frequencies, X_magnitude)

[0099] plt.title('Frequency Domain Representation')

[0100] plt.xlabel('Frequency (Hz)')

[0101] plt.ylabel('Magnitude')

[0102] plt.grid()

[0103] plt.show()

[0104] It is found that when the pull-out load is 0, the first natural frequency is 12.0 Hz, when the standard bearing capacity is reached (50 kN), the first natural frequency drops to 11.5 Hz, and after pull-out failure, the first natural frequency drops to 9.0 Hz.

[0105] According to the above steps, the second natural frequencies of the anchors A, B and C to be evaluated are obtained respectively; among them, the second natural frequency of the anchor A to be evaluated when the pull-out load is 0 is 12.0 Hz, and the anchor A to be evaluated is qualified; the second natural frequency of the anchor B to be evaluated when the pull-out load reaches the standard bearing capacity is 11.4 Hz, which is 0.1 Hz away from 11.5 Hz and is less than the safety threshold (0.2 Hz), and the anchor B to be evaluated is qualified; the second natural frequency of the anchor C to be evaluated when the pull-out load is 0 is 11.0 Hz, which is 1 Hz away from 12.0 Hz and is greater than the safety threshold, and it is evaluated that the anchor C to be evaluated may be qualified, and further means are needed to evaluate the anchor C to be evaluated, or the anchor C to be evaluated is simply replaced.

[0106] Embodiment three:

[0107] This embodiment provides an evaluation system for anchoring quality under vibration conditions. Figure 2 ,include,

[0108] The controller 1 is used to execute the method for evaluating the anchoring quality under vibration conditions provided in the first or second embodiment.

[0109] The method for evaluating anchoring quality under vibration conditions provided in Example 1 or 2 can be applied to the system for evaluating anchoring quality under vibration conditions provided in this embodiment, and has functional modules and beneficial effects corresponding to the execution method. The system for evaluating anchoring quality under vibration conditions provided in this embodiment has the same technical effects as Example 1 or 2, and will not be repeated here.

[0110] As one embodiment, the anchor quality evaluation system under vibration conditions also includes an acceleration sensor 2, which is connected to the controller 1 by signal, and is used to collect the axial acceleration response data corresponding to the qualified sample anchor when traversing the excitation vibration loads of different frequencies; an electromagnetic exciter 3, which is connected to the controller 1 by signal, and is used to excite the qualified sample anchor to vibrate. The advantage of the electromagnetic exciter 3 is that it can accurately control and simulate the axial vibration load directly through electrical signals, and the response speed is extremely fast.

[0111] Embodiment 4:

[0112] This embodiment provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the steps of the method for evaluating anchoring quality under vibration conditions provided in Embodiment 1 or Embodiment 2 are implemented.

[0113] The computer-readable storage medium provided in this embodiment has the same technical effects as those in Embodiment 1 or 2, and will not be described in detail here.

[0114] Embodiment five:

[0115] This embodiment provides a computer program product, on which a computer program is stored, and when the program is executed by a processor, the steps of the method for evaluating anchoring quality under vibration conditions provided in Embodiment 1 or Embodiment 2 are implemented. The computer program product provided in this embodiment can be transmitted, distributed and downloaded in the form of a signal via the Internet.

[0116] The computer program product provided in this embodiment has the same technical effects as those of Embodiment 1 or 2, and will not be described in detail here.

[0117] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0118] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0119] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0120] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0121] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0122] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0123] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for evaluating anchoring quality under vibration conditions, characterized in that: include, Obtain the first natural frequency of the qualified sample anchor under different pull-out loads; Arrange the first natural frequencies under different pulling loads into a first data table; Obtaining the second natural frequency of the anchor to be evaluated under the test pull-out load; The first natural frequency corresponding to the test pull-out load is found in the first data table, and the evaluation of the anchoring quality is obtained according to the difference between the corresponding first natural frequency and the second natural frequency.

2. The method for evaluating anchoring quality under vibration conditions according to claim 1 is characterized in that: The method of obtaining the first natural frequency of the qualified sample anchor under different pull-out loads includes: Under the same pull-out load, obtain the corresponding axial acceleration response data of the qualified sample anchor when it traverses the excitation vibration loads of different frequencies; Performing data conversion on the axial acceleration response data to obtain a frequency spectrum diagram; The peak frequency in the frequency spectrum is taken as the first natural frequency corresponding to the current pulling load.

3. The method for evaluating anchoring quality under vibration conditions according to claim 2 is characterized in that: The sampling frequency of the axial acceleration response data is not less than ten times the frequency of the excitation vibration load.

4. The method for evaluating anchoring quality under vibration conditions according to claim 2 is characterized in that: The step of converting the axial acceleration response data to obtain a frequency spectrum diagram includes: Arranging the axial acceleration response data into an acceleration signal based on the time domain in the time domain; The acceleration signal based on the time domain is subjected to a fast Fourier transform to obtain a complex representation of the frequency domain signal. The formula for obtaining the complex representation of the frequency domain signal is as follows: ， In the formula, is the complex representation of the frequency domain signal, is a single acceleration data in the acceleration signal based on the time domain, is the counting sequence number of the acceleration data, is the acceleration signal in the time domain Acceleration data, is an imaginary unit, is the frequency index, The value range is [0, ], is the number of acceleration data in the acceleration signal in the time domain; extracting a magnitude spectrum from the complex representation of the frequency domain signal; Acquire a frequency corresponding to the frequency index according to a sampling frequency of the axial acceleration response data; A frequency spectrum is plotted based on the frequency and amplitude spectra.

5. The method for evaluating anchoring quality under vibration conditions according to claim 4 is characterized in that: The amplitude spectrum is obtained by calculating the following formula: ， In the formula, is the amplitude spectrum, is the real part of the complex representation of the frequency domain signal, is the imaginary part of the complex representation of the frequency domain signal.

6. The method for evaluating anchoring quality under vibration conditions according to claim 4 is characterized in that: The frequency is calculated by the following formula: ， In the formula, is the frequency, is the sampling frequency of the axial acceleration response data.

7. A system for evaluating anchoring quality under vibration conditions, characterized in that: include, A controller (1) for executing the method for evaluating anchoring quality under vibration conditions as described in any one of claims 1 to 6.

8. The anchoring quality assessment system under vibration conditions according to claim 7, characterized in that: Also includes An acceleration sensor (2) is connected to the controller (1) by signal and is used to collect axial acceleration response data corresponding to the qualified sample anchor when it is subjected to excitation vibration loads of different frequencies; The electromagnetic exciter (3) is connected to the controller (1) by signal and is used to excite the qualified sample anchor to generate vibration.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method for evaluating the anchoring quality under vibration conditions described in any one of claims 1 to 6 are implemented.

10. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instructions are executed by a processor, the steps of the method for evaluating the anchoring quality under vibration conditions described in any one of claims 1 to 6 are implemented.

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