A frame vibration test method and system

Abstract

The present invention relates to the technical field of electric tricycle frame testing, and discloses a frame vibration testing method and system. The method includes: collecting signals such as dynamic displacement, strain, and vibration force at both ends of the frame in real time; calculating the dynamic stiffness and frequency response characteristics of the frame based on the collected data; determining the resonance frequency range of the frame by a method combining synchronous mode and asynchronous mode. Compared with the technical problem in the prior art that the regulation ability of the providing mechanism is limited during the frame vibration testing process, especially the accurate identification of the resonance frequency range of the frame cannot be achieved by combining synchronous vibration and asynchronous vibration, since this application realizes the accurate identification of the resonance frequency range of the frame vibration through the combination of synchronous and asynchronous modes, dynamic stiffness calculation, and adaptive dynamic regulation of vibration input signals.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric tricycle frame testing, and particularly relates to a frame vibration testing method and system. Background Art

[0002] Currently, in the field of frame vibration testing, there are still deficiencies in accurately identifying the resonance frequency range of the frame. For example, existing testing systems usually adopt fixed vibration providing mechanisms, lacking flexible regulation capabilities, and it is difficult to support synchronous vibration testing and asynchronous vibration testing simultaneously. In addition, during the testing process, the existing technology has insufficient processing capabilities for dynamic data. For example, the calculation models for the dynamic stiffness, frequency response characteristics, and dynamic frequency difference of the frame are not perfect enough, resulting in a large error in the identified resonance frequency range and being difficult to meet the actual engineering requirements. Especially in the case where synchronous vibration mode and asynchronous vibration mode need to be combined, the existing technology cannot effectively utilize the multi-mode test results to comprehensively confirm the resonance frequency points. At the same time, the existing testing systems lack flexibility in adjusting the input signal and cannot adaptively regulate the vibration input signal according to the real-time dynamic response, thereby further reducing the accuracy and efficiency of resonance frequency range identification. Therefore, there is an urgent need for a frame vibration testing method and system that can complete the high-precision identification of the frame resonance frequency range through the collaborative testing of synchronous and asynchronous modes, combining dynamic stiffness calculation and frequency response analysis, and by means of adaptively regulating the vibration input signal. Summary of the Invention

[0003] Aiming at the above-mentioned existing technical deficiencies, the purpose of the present invention is to propose a frame vibration testing method, aiming to solve the technical problem that the regulation ability of the providing mechanism in the frame vibration testing process of the existing technology is limited, especially the accurate identification of the frame resonance frequency range cannot be achieved by combining synchronous vibration and asynchronous vibration.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a frame vibration testing method,

[0005] The frame vibration testing method includes:

[0006] Step S10: Respectively collect the frame vibration dynamic signal data at both ends of the frame at time t through displacement sensors, acceleration sensors, and strain gauges provided on the first vibration providing mechanism and the second vibration providing mechanism at both ends of the frame, including: the first displacement data , the second displacement data , the first strain data , the second strain data , the first vibration force data and the second vibration force data , and timestamp the dynamic signal of the frame vibration by setting a signal during synchronization;

[0007] Step S20: Calculate the fusion feature data at both ends based on the dynamic signal data of the frame vibration, including: the dynamic displacement difference , the dynamic strain difference at both ends , and the average vibration force . Calculate the dynamic stiffness of the frame according to the fusion feature data; among them, the formula for the dynamic stiffness of the frame is: , where is the time change rate of strain, used to correct the contribution of local deformation to stiffness; is the dynamic correction coefficient;

[0008] Step S30: Perform a fast Fourier transform on the first displacement data and the second displacement data to extract the main vibration frequencies of the frame, including the first main vibration frequency and the second main vibration frequency . Calculate the dynamic frequency difference of the frame vibration, ;

[0009] Step S40: Dynamically adjust the input signals of the first vibration providing mechanism and the second vibration providing mechanism according to the dynamic stiffness of the frame and the dynamic frequency difference of the frame vibration, and conduct a synchronous mode test and an asynchronous mode test at both ends of the frame to determine the resonance frequency point set;

[0010] Step S50: Determine the resonance frequency range according to the resonance frequency point set and output the frame vibration test result.

[0011] Preferably, in step S30, , , where are respectively in the frequency domain representation, and is the independent variable function for taking the maximum value.

[0012] Preferably, in step S40, conducting a synchronous mode test and an asynchronous mode test at both ends of the frame specifically includes:

[0013] The first step is to conduct a synchronous mode test at both ends of the frame, and dynamically adjust the input signals of the first vibration providing mechanism and the second vibration providing mechanism so that the first main vibration frequency and the second main vibration frequency are both equal to , and preset the first vibration frequency threshold and the second vibration frequency threshold , and gradually scan the frequency range , record the first average dynamic frequency response at both ends of the vehicle frame, set the peak point of the first average dynamic frequency response as the resonance frequency candidate point, and record the frequency value as ;

[0014] In the second step, perform an asynchronous mode test on both ends of the vehicle frame, and dynamically adjust the input signals of the first vibration providing mechanism and the second vibration providing mechanism to make the dynamic frequency difference of the vehicle frame vibration gradually adjust from being equal to to zero, record the second average dynamic frequency response at both ends of the vehicle frame , calculate the first derivative of the second average dynamic frequency response, and when there is a first derivative of the second average dynamic frequency response greater than the preset first derivative threshold of the second average dynamic frequency response, confirm that the resonance frequency candidate point with the frequency value recorded as is the final resonance frequency point, thereby forming a set of resonance frequency points.

[0015] Preferably, in step S50, the vehicle frame vibration test result includes the second average dynamic frequency response , the set of resonance frequency points and the resonance frequency range.

[0016] Preferably, in step S40, according to the dynamic stiffness of the vehicle frame and the dynamic frequency difference of the vehicle frame vibration The step of dynamically adjusting the input signals of the first vibration providing mechanism and the second vibration providing mechanism adopts a fuzzy adaptive PID control algorithm, and the formula is:

[0017]

[0018] Wherein, is the unilateral input signal adjustment amount of the first vibration providing mechanism or the second vibration providing mechanism; are the proportional, integral and differential control parameters.

[0019] Preferably, in step S20, the dynamic displacement difference = - , the dynamic strain difference at both ends = - , the average vibration force = .

[0020] The present invention also provides a vehicle frame vibration test system, including:

[0021] The dynamic data acquisition module is used to respectively collect the dynamic signal data of the frame vibration at both ends of the frame at time t through displacement sensors, acceleration sensors, and strain gauges arranged on the first vibration providing mechanism and the second vibration providing mechanism at both ends of the frame, including: the first displacement data , the second displacement data , the first strain data , the second strain data , the first vibration force data and the second vibration force data , and perform timestamp marking on the frame vibration dynamic signal by setting a synchronization time signal;

[0022] The feature calculation module is used to calculate the fusion feature data at both ends based on the frame vibration dynamic signal data, including: the dynamic displacement difference , the dynamic strain difference at both ends and the average vibration force , and calculate the dynamic stiffness of the frame according to the fusion feature data ; among them, the formula for the dynamic stiffness of the frame is: , where is the time change rate of strain, which is used to correct the contribution of local deformation to stiffness; is the dynamic correction coefficient;

[0023] The resonance frequency point determination module is used to dynamically adjust the input signals of the first vibration providing mechanism and the second vibration providing mechanism according to the dynamic stiffness of the frame and the dynamic frequency difference of the frame vibration , and perform synchronous mode testing at both ends of the frame and asynchronous mode testing at both ends of the frame to determine the resonance frequency point set;

[0024] The dynamic regulation and testing module is used to dynamically adjust the input signals of the first vibration providing mechanism and the second vibration providing mechanism according to the dynamic stiffness of the frame and the dynamic frequency difference of the frame vibration , and perform synchronous mode testing at both ends of the frame and asynchronous mode testing at both ends of the frame to determine the resonance frequency point set;

[0025] The test result output module is used to determine the resonance frequency range according to the resonance frequency point set and output the frame vibration test result.

[0026] The present invention also provides a computer program product, including a frame vibration test program, and when the frame vibration test program is executed by a processor, the frame vibration test method described above is implemented.

[0027] The beneficial effects of the present invention are as follows: Compared with the limited adjustment ability of the providing mechanism during the frame vibration test in the prior art, especially the technical problem that it is impossible to accurately identify the resonance frequency range of the frame by combining synchronous vibration and asynchronous vibration. Since this application realizes the accurate identification of the resonance frequency range of the frame vibration through the combination of synchronous and asynchronous modes, dynamic stiffness calculation, and adaptive dynamic regulation of the vibration input signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 It is a schematic flowchart of the first embodiment of a frame vibration test method of the present invention.

[0030] Figure 2 It is a schematic diagram of the equipment of a frame vibration test method of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] Embodiment 1: As Figure 1 shown, it is a schematic flowchart of the first embodiment of the frame vibration test method of the present invention, and the first embodiment of the frame vibration test method of the present invention is proposed.

[0033] In the first embodiment, the frame vibration test method includes:

[0034] Step S10: Respectively collect the frame vibration dynamic signal data at both ends of the frame at time t through displacement sensors, acceleration sensors, and strain gauges provided on the first vibration providing mechanism and the second vibration providing mechanism at both ends of the frame, including: first displacement data , second displacement data , first strain data , second strain data , first vibration force data and second vibration force data , and perform timestamp marking on the frame vibration dynamic signal through the set synchronization signal;

[0035] It should be understood that the purpose of collecting data is to record the dynamic response of the vehicle frame during vibration testing in real time, including its position changes, deformation degrees, and force conditions, providing basic data for subsequent calculation of dynamic stiffness and frequency response; the synchronous clock module is used to ensure the temporal consistency of data collected by different sensors, avoiding inaccurate calculation results caused by timing errors.

[0036] Step S20: Calculate the fusion feature data at both ends based on the dynamic signal data of the vehicle frame vibration, including: the dynamic displacement difference , the dynamic strain difference at both ends and the average vibration force , and calculate the dynamic stiffness of the vehicle frame according to the fusion feature data; among them, the formula for the dynamic stiffness of the vehicle frame is: , where is the time change rate of strain, used to correct the contribution of local deformation to stiffness; is the dynamic correction coefficient;

[0037] It should be noted that the dynamic displacement difference = - , the dynamic strain difference at both ends = - , the average vibration force = ; , where is the time change rate of strain, used to correct the contribution of local deformation to stiffness; is the dynamic correction coefficient

[0038] It should be understood that in order to better achieve the accurate calculation of dynamic stiffness and describe the response characteristics of the vehicle frame during vibration, step S20 can fully reflect the overall dynamic characteristics of the vehicle frame and the influence of local strain correction by fusing three parameters: the dynamic displacement difference, the dynamic strain difference, and the average vibration force.

[0039] Step S30: Perform fast Fourier transform on the first displacement data and the second displacement data to extract the main vibration frequencies of the vehicle frame, including the first main vibration frequency and the second main vibration frequency , and calculate the dynamic frequency difference of the vehicle frame vibration, ;

[0040] It should be understood that through step S30, the main vibration frequencies at both ends of the vehicle frame can be quickly extracted; the distribution of the dynamic frequency difference of the vehicle frame can be quantitatively analyzed, providing important data support for the subsequent identification of the resonance frequency range;

[0041] Step S40: According to the dynamic stiffness of the vehicle frame and the dynamic frequency difference of the vehicle frame vibration dynamically adjust the input signals of the first vibration providing mechanism and the second vibration providing mechanism, and conduct a synchronous mode test and an asynchronous mode test at both ends of the vehicle frame to determine the set of resonance frequency points;

[0042] It should be noted that conducting a synchronous mode test and an asynchronous mode test at both ends of the vehicle frame specifically includes:

[0043] In the first step, conduct a synchronous mode test at both ends of the vehicle frame, dynamically adjust the input signals of the first vibration providing mechanism and the second vibration providing mechanism so that the first main vibration frequency and the second main vibration frequency are both equal to , the preset first vibration frequency threshold and the second vibration frequency threshold , and gradually scan the frequency range , record the first average dynamic frequency response at both ends of the vehicle frame, set the peak point of the first average dynamic frequency response as a resonance frequency candidate point, and record the frequency value as ;

[0044] In the second step, conduct an asynchronous mode test at both ends of the vehicle frame, dynamically adjust the input signals of the first vibration providing mechanism and the second vibration providing mechanism so that the dynamic frequency difference of the vehicle frame vibration starts from being equal to and is gradually adjusted to zero, record the second average dynamic frequency response at both ends of the vehicle frame, calculate the first derivative of the second average dynamic frequency response, and when there is a first derivative of the second average dynamic frequency response greater than the preset first derivative threshold of the second average dynamic frequency response, confirm that the resonance frequency candidate point with the frequency value recorded as is the final resonance frequency point, and thus form a set of resonance frequency points.

[0045] It should be understood that by combining the synchronous mode and the asynchronous mode, not only can the global resonance frequency be quickly captured, but also the response characteristics of each frequency point can be accurately verified through the asynchronous mode to avoid misjudgment; the amplitude of the dynamic stiffness fluctuation is used to adjust the input signal to ensure that the test coverage is wide enough; the regulation of the dynamic frequency difference magnifies the local resonance characteristics, which helps to verify the authenticity of the candidate frequency points

[0046] For example, the test parameters are as follows: frequency range Hz, Hz; Sweep step size Hz; Initial dynamic frequency difference Hz; Under synchronous mode test, input signal frequency , gradually scan the frequency , record the dynamic frequency response , for example, at and , peaks appear, record the candidate frequency points ; Under asynchronous mode test, input signal frequency Hz, , gradually reduce , , , record the dynamic frequency response , for example, when , the dynamic response is significantly enhanced, confirm as the final resonance frequency point, finally, the set of resonance frequency points is Hz, 15 Hz .

[0047] Step S50: Determine the resonance frequency range based on the set of resonance frequency points and output the test results of the vehicle frame vibration.

[0048] Through step S50, the resonance frequency range of the vehicle frame and related test results can be accurately output. These data can provide a scientific basis for the optimization of vehicle frame design and dynamic performance analysis, and at the same time improve the practicality and test efficiency of the vibration test system.

[0049] In addition, a vehicle frame vibration test system provided by the present invention adopts a vehicle frame vibration test method in the above embodiment, and can solve the technical problem of a vehicle frame vibration test. Compared with the prior art, the beneficial effects of a vehicle frame vibration test system provided by the present invention are the same as those of a vehicle frame vibration test method provided by the above embodiment, and other technical features in the vehicle frame vibration test system are the same as the features disclosed in the above embodiment method, and will not be elaborated here.

[0050] The present invention provides a vehicle frame vibration test device, please refer to Figure 2, a vehicle frame vibration test device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute a vehicle frame vibration test method in the first embodiment above. A vehicle frame vibration test device in an embodiment of the present invention may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistant), PADs (Portable Application Description: tablet computers), PMPs (Portable Media Player: portable multimedia players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. A vehicle frame vibration test device is merely an example and should not impose any limitations on the functions and usage scope of the embodiments of the present invention. A vehicle frame vibration test device may include a processing device 1001 (such as a central processing unit, a graphics processing unit, etc.), which can execute various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM: Random Access Memory) 1004. In the RAM 1004, various programs and data required for the operation of a vehicle frame vibration test device are also stored. The processing device 1001, the ROM 1002, and the RAM 1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems may be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 may allow a vehicle frame vibration test device to communicate with other devices wirelessly or wiredly to exchange data. Although a vehicle frame vibration test device with various systems is shown in the figure, it should be understood that it is not required to implement or have all the shown systems. Instead, more or fewer systems may be implemented or had.

[0051] The present invention also provides a computer program product, including a computer program which, when executed by a processor, implements the steps of a vehicle frame vibration test method as described above. The computer program product provided by the present invention can solve the technical problem of a vehicle frame vibration test. Compared with the prior art, the beneficial effects of the computer program product provided by the present invention are the same as those of the vehicle frame vibration test method provided by the above embodiment, and will not be elaborated herein.

[0052] In particular, according to the embodiments disclosed by the present invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, an embodiment disclosed by the present invention includes a computer program product which includes a computer program carried on a computer-readable medium, and the computer program includes program codes for executing the methods shown in the flowcharts. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by a processing device 1001, it executes the above functions defined in the methods of the embodiments disclosed by the present invention.

[0053] It should be understood that various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0054] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A vehicle frame vibration test method, characterized in that, The method includes: Step S10: The dynamic signal data of the frame vibration at time t at both ends of the frame are respectively collected by displacement sensors, acceleration sensors and strain gauges provided on the first vibration providing mechanism and the second vibration providing mechanism at both ends of the frame, including: the first displacement data , the second displacement data , the first strain data , the second strain data , the first vibration force data and the second vibration force data , and the dynamic signal of the frame vibration is timestamped by setting the synchronization signal; Step S20: Calculate the fusion feature data at both ends based on the dynamic signal data of the frame vibration, including: the dynamic displacement difference , the dynamic strain difference at both ends and the average vibration force , and calculate the dynamic stiffness of the frame according to the fusion feature data ; where the dynamic stiffness of the frame is calculated by the formula: , where is the time change rate of the strain, which is used to correct the contribution of local deformation to the stiffness; is the dynamic correction coefficient; Step S30: For the first displacement data and the second displacement data perform a fast Fourier transform to extract the main vibration frequencies of the vehicle frame, including the first main vibration frequency and the second main vibration frequency , calculate the dynamic frequency difference of the vehicle frame vibration , ; Step S40: According to the dynamic stiffness of the vehicle frame and the dynamic frequency difference of the vehicle frame vibration dynamically adjust the input signals of the first vibration providing mechanism and the second vibration providing mechanism, and perform synchronous mode tests at both ends of the vehicle frame and asynchronous mode tests at both ends of the vehicle frame to determine the resonance frequency point set; Step S50: Determine the resonance frequency range according to the set of resonance frequency points and output the frame vibration test result.

2. The frame vibration test method according to claim 1, wherein In step S30, , , where are respectively in the frequency domain representation, is the independent variable function for taking the maximum value.

3. A frame vibration test method as described in claim 1, characterized in that In step S40, a synchronous mode test and an asynchronous mode test of both ends of the frame are performed, specifically including: In the first step, a synchronous mode test is carried out at both ends of the vehicle frame, and the input signals of the first vibration providing mechanism and the second vibration providing mechanism are dynamically adjusted so that the first main vibration frequency and the second main vibration frequency are both equal to , a preset first vibration frequency threshold and a second vibration frequency threshold are set, and the frequency range is gradually scanned, the first average dynamic frequency response at both ends of the vehicle frame is recorded, the peak point of the first average dynamic frequency response is set as the resonance frequency candidate point, and the frequency value is recorded as ; In the second step, asynchronous mode tests are conducted at both ends of the vehicle frame, and the input signals of the first vibration providing mechanism and the second vibration providing mechanism are dynamically adjusted to make the dynamic frequency difference of the vehicle frame vibration from being equal to start to be gradually adjusted to zero, and record the second average dynamic frequency response at both ends of the vehicle frame , calculate the first derivative of the second average dynamic frequency response. When there is a first derivative of the second average dynamic frequency response greater than the preset threshold of the first derivative of the second average dynamic frequency response, confirm that the frequency value is recorded as the resonance frequency candidate point is the final resonance frequency point, and then a set of resonance frequency points is formed.

4. The frame vibration test method according to claim 3, characterized in that, In step S50, the frame vibration test results include the second average dynamic frequency response , the set of resonance frequency points and the resonance frequency range.

5. A frame vibration test method according to claim 1, characterized in that, In step S40, according to the dynamic stiffness of the vehicle frame and the difference in dynamic frequencies of the vehicle frame vibration The step of dynamically adjusting the input signals of the first vibration providing mechanism and the second vibration providing mechanism adopts a fuzzy adaptive PID control algorithm, and the formula is: Among them, is the unilateral input signal adjustment amount of the first vibration providing mechanism or the second vibration providing mechanism; are the proportional, integral, and differential control parameters.

6. The frame vibration test method according to claim 1, characterized in that, In step S20, the dynamic displacement difference = - , the dynamic strain difference at both ends = - , and the average vibration force = .

7. A vehicle frame vibration test system, characterized in that, The frame vibration test system includes: The dynamic data acquisition module is used to collect the dynamic signal data of the frame vibration at both ends of the frame at time t through displacement sensors, acceleration sensors and strain gauges arranged on the first vibration providing mechanism and the second vibration providing mechanism at both ends of the frame, including: the first displacement data , the second displacement data , the first strain data , the second strain data , the first vibration force data and the second vibration force data , and timestamp the dynamic signal of the frame vibration by setting the synchronization signal; A feature calculation module, which is used to calculate the fusion feature data at both ends based on the dynamic signal data of the frame vibration, including: the dynamic displacement difference , the dynamic strain difference at both ends and the average vibration force , and calculate the dynamic stiffness of the frame according to the fusion feature data ; wherein, the dynamic stiffness of the frame is calculated by the formula: , where is the time change rate of the strain, which is used to correct the contribution of local deformation to the stiffness; is the dynamic correction coefficient; A resonance frequency point determination module, which is used to determine a set of resonance frequency points by dynamically adjusting the input signals of a first vibration providing mechanism and a second vibration providing mechanism according to the dynamic stiffness of the vehicle frame and the dynamic frequency difference of the vehicle frame vibration, and performing a synchronous mode test at both ends of the vehicle frame and an asynchronous mode test at both ends of the vehicle frame; and the dynamic frequency difference of the vehicle frame vibration dynamically adjust the input signals of the first vibration providing mechanism and the second vibration providing mechanism to perform a synchronous mode test at both ends of the vehicle frame and an asynchronous mode test at both ends of the vehicle frame to determine the resonance frequency point set; A dynamic regulation test module, which is used to dynamically adjust the input signals of the first vibration providing mechanism and the second vibration providing mechanism according to the dynamic stiffness of the vehicle frame and the dynamic frequency difference of the vehicle frame vibration to perform a synchronous mode test at both ends of the vehicle frame and an asynchronous mode test at both ends of the vehicle frame to determine the resonance frequency point set; A test result output module, configured to determine the resonance frequency range according to the set of resonance frequency points and output the frame vibration test result.

8. A vehicle frame vibration test device, characterized in that The frame vibration test device includes: a memory, a processor, and a frame vibration test program stored on the memory and executable on the processor. When the frame vibration test program is executed by the processor, the frame vibration test method according to any one of claims 1 to 6 is implemented.

9. A computer program product, characterized in that, The computer program product includes a frame vibration test program. When the frame vibration test program is executed by a processor, the frame vibration test method according to any one of claims 1 to 6 is implemented.

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