Method for determining glove box mounting modal frequency, computer device and storage medium

Abstract

The application discloses a glove box installation modal frequency determination method, computer equipment and a storage medium. The method comprises the following steps: acquiring first test data collected in the process of knocking a glove box installation framework; acquiring a target transfer function of the glove box installation framework to a glove box panel according to the first test data; acquiring second test data collected in the process of knocking the glove box panel; acquiring a target frequency response function corresponding to the glove box panel according to the second test data; and acquiring the glove box installation modal frequency according to the target transfer function and the target frequency response function. According to the method, the target transfer function and the target frequency response function are used to determine the glove box installation modal frequency, the transfer function and the frequency response function are comprehensively considered, and the determination efficiency and accuracy of the finally determined glove box installation modal frequency are improved.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and in particular to a method for determining the modal frequency of a glove box, a computer device, and a storage medium. Background Technology

[0002] In existing technologies, multiple sensors or multiple taps are typically required to obtain the frequency response function, and the glove box mounting modal frequency is determined based on the frequency response function. This method is inefficient. Since the glove box mounting modal frequency and the natural frequency of the glove box panel are closely spaced, determining the glove box mounting modal frequency solely based on the frequency response function cannot accurately distinguish between the closely spaced glove box mounting modal frequency and the natural frequency of the glove box panel, resulting in low accuracy. Therefore, there is an urgent need for a method that can improve both the efficiency and accuracy of determining the glove box mounting modal frequency. Summary of the Invention

[0003] This invention provides a method for determining the installation modal frequency of a glove box, a computer device, and a storage medium, in order to solve the problem of how to improve both the efficiency and accuracy of determining the installation modal frequency of a glove box.

[0004] A method for determining the installation modal frequencies of a glove box includes:

[0005] Acquire the first test data collected during the process of impacting the glove box installation frame;

[0006] Based on the first test data, obtain the target transfer function from the glove box mounting frame to the glove box panel;

[0007] Acquire the second test data collected during the process of tapping the glove box panel;

[0008] Based on the second test data, obtain the target frequency response function corresponding to the glove box panel;

[0009] The glove box installation mode frequency is obtained based on the target transfer function and the target frequency response function.

[0010] Preferably, after acquiring the first test data during the process of striking the glove box installation frame, the method for determining the glove box installation modal frequency further includes:

[0011] Determine whether the first test data is reliable data;

[0012] If the first test data is reliable data, then execute the target transfer function to obtain the glove box mounting frame to the glove box panel based on the first test data;

[0013] If the first test data is unreliable, then the process of acquiring the first test data collected during the process of tapping the glove box installation frame is executed.

[0014] Preferably, the first test data includes at least two first tapping data, each of which is data generated by tapping the glove box installation frame once;

[0015] Preferably, determining whether the first test data is reliable data includes:

[0016] Based on at least two of the first tapping data, obtain the first coherence function corresponding to the first test data;

[0017] If the first coherence function is greater than the first coherence threshold, then the first test data is determined to be reliable data;

[0018] If the first coherence function is not greater than the first coherence threshold, then the first test data is determined to be unreliable data.

[0019] Preferably, obtaining the target transfer function from the glove box mounting frame to the glove box panel based on the first test data includes:

[0020] Based on each of the first tapping data, obtain the first transfer function corresponding to each of the first tapping data.

[0021] Based on the first transfer function corresponding to at least two of the first tapping data, obtain the target transfer function from the glove box mounting frame to the glove box panel.

[0022] Preferably, after acquiring the second test data during the process of obtaining the tapping glove box panel, the method for determining the glove box installation modal frequency further includes:

[0023] Determine whether the second test data is reliable data;

[0024] If the second test data is reliable data, then the step of obtaining the target frequency response function corresponding to the glove box panel based on the second test data is executed;

[0025] If the second test data is unreliable, then the second test data collected during the process of obtaining the glove box panel by tapping is executed.

[0026] Preferably, the second test data includes at least two second tapping data, each of which is data generated during the tapping of the glove box panel once;

[0027] Preferably, determining whether the second test data is reliable data includes:

[0028] Based on at least two of the second tapping data, obtain the second coherence function corresponding to the second test data;

[0029] If the second coherence function is greater than the second coherence threshold, then the second test data is determined to be reliable data;

[0030] If the second coherence function is not greater than the second coherence threshold, then the second test data is determined to be unreliable data.

[0031] Preferably, obtaining the target frequency response function corresponding to the glove box panel based on the second test data includes:

[0032] Based on each of the second tapping data, obtain the second frequency response function corresponding to each of the second tapping data;

[0033] The target frequency response function corresponding to the glove box panel is obtained based on the second frequency response function corresponding to at least two of the second tapping data.

[0034] Preferably, obtaining the glove box installation modal frequency based on the target transfer function and the target frequency response function includes:

[0035] Based on the target transfer function, obtain the first peak frequency and the second peak frequency of the glove box panel;

[0036] Based on the target frequency response function, obtain the third peak frequency of the glove box panel;

[0037] The frequency that is different from the third peak frequency among the first peak frequency and the second peak frequency is determined as the glove box installation mode frequency.

[0038] A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the above-described method for determining the installation modal frequency of a glove box.

[0039] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for determining the installation mode frequency of a glove box.

[0040] The aforementioned method for determining the installation modal frequencies of the glove box, along with the computer and storage medium, obtains the target transfer function by collecting first test data during the tapping of the glove box installation frame and the target frequency response function by collecting second test data during the tapping of the glove box panel. Based on the target transfer function and the target frequency response function, the installation modal frequencies of the glove box are determined. By comprehensively considering both the transfer function and the frequency response function, and distinguishing between the installation modal frequencies of the glove box and the natural frequencies of the glove box panel, the efficiency and accuracy of the final determination of the installation modal frequencies of the glove box are improved. Attached Figure Description

[0041] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a flowchart of a method for determining the installation modal frequency of a glove box according to an embodiment of the present invention;

[0043] Figure 2 This is another flowchart of the method for determining the installation modal frequency of the glove box in one embodiment of the present invention;

[0044] Figure 3 This is another flowchart of the method for determining the installation modal frequency of the glove box in one embodiment of the present invention;

[0045] Figure 4 This is another flowchart of the method for determining the installation modal frequency of the glove box in one embodiment of the present invention;

[0046] Figure 5 This is another flowchart of the method for determining the installation modal frequency of the glove box in one embodiment of the present invention;

[0047] Figure 6 This is another flowchart of the method for determining the installation modal frequency of the glove box in one embodiment of the present invention;

[0048] Figure 7 This is another flowchart of the method for determining the installation modal frequency of the glove box in one embodiment of the present invention;

[0049] Figure 8 This is another flowchart of the method for determining the installation modal frequency of the glove box in one embodiment of the present invention;

[0050] Figure 9 This is an image of the target transfer function and the target frequency response function in one embodiment of the present invention;

[0051] Figure 10This is a schematic diagram of a computer device according to an embodiment of the present invention. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] The glove box installation modal frequency determination method provided in this embodiment of the invention can be applied in a computer device. The computer device can receive test parameters input by the user and test data collected by a data acquisition system. The computer device processes the test data collected by the data acquisition system and, based on the test parameters, obtains the target transfer function from the glove box installation frame to the glove box panel and the target frequency response function corresponding to the glove box panel, in order to determine the glove box installation modal frequency.

[0054] In one embodiment, such as Figure 1 As shown, a method for determining the installation modal frequency of a glove box is provided. Taking the application of this method in computer equipment as an example, the method includes the following steps:

[0055] S101: Acquire the first test data collected during the process of striking the glove box installation frame;

[0056] S102: Based on the first test data, obtain the target transfer function from the glove box mounting frame to the glove box panel;

[0057] S103: Acquire the second test data collected during the process of tapping the glove box panel;

[0058] S104: Based on the second test data, obtain the target frequency response function corresponding to the glove box panel;

[0059] S105: Obtain the glove box installation modal frequency based on the target transfer function and the target frequency response function.

[0060] The first test data refers to the test data generated during the process of tapping the glove box installation frame.

[0061] As an example, in step S101, the computer device acquires the first test data collected during the impact on the glove box mounting frame. In this example, in the automotive laboratory, the normal direction of the automotive glove box panel is connected to the test direction of the sensor. The sensor is connected to the data acquisition system, and the data acquisition system is connected to the computer device. During the test, in order to subsequently obtain the target transfer function from the glove box mounting frame to the glove box panel, a hammer can be used to impact the automotive glove box mounting frame, with the impact direction in the normal direction of the glove box mounting frame. In this example, the computer device, through the sensor, acquires the test data generated after the hammer impacts the automotive glove box mounting frame at least twice, collected by the data acquisition system, as the first test data. For example, the first test data can be the excitation force generated after the hammer impacts the glove box mounting frame and / or the vibration acceleration generated after the hammer impacts the glove box mounting frame. In this example, during the test, a hammer can be used to impact the automotive glove box mounting frame at least twice, and all data from at least two impact processes can be collected and determined as the first test data. Performing at least two impacts ensures the reliability of the first test data. Experience shows that using a hammer to strike the glove box mounting frame five times and collecting the first test data during these five strikes ensures efficient acquisition of the first test data due to the small number of strikes. This facilitates the determination of the target transfer function from the glove box mounting frame to the glove box panel based on the first test data. Furthermore, the first test data generated by the five strikes has a certain degree of reliability, which helps ensure the accuracy of the results.

[0062] The target transfer function refers to the transfer function from the glove box mounting frame to the glove box panel, obtained based on the first test data and pre-set test parameters.

[0063] As an example, in step S102, the computer device obtains the target transfer function from the glove box mounting frame to the glove box panel based on the acquired first test data. In this example, the computer device has preset test parameters input by the user, such as analysis bandwidth, frequency resolution, sensor range, hammer trigger voltage, and windowing. The analysis bandwidth is not less than 100Hz, and the frequency resolution is not less than 1Hz. In this example, the analysis bandwidth is set to 256Hz, the frequency resolution is 1Hz, the response voltage under hammer excitation is obtained experimentally, the sensor range and hammer trigger voltage are set, and windowing is applied based on the pulse of the hammer action. Based on the acquired first test data and the preset test parameters, the computer device obtains the transfer function from the glove box mounting frame to the glove box panel corresponding to the first test data, and uses this transfer function as the target transfer function. In this example, obtaining the target transfer function from the glove box mounting frame to the glove box panel based on the acquired first test data makes it feasible to subsequently determine the glove box mounting modal frequency based on the target transfer function.

[0064] The second test data refers to the test data generated during the tapping of the glove box panel.

[0065] As an example, in step S103, the computer device acquires second test data collected during the tapping of the glove box panel. In this example, during the test, in order to subsequently obtain the target frequency response function of the glove box panel, the glove box is opened, and a hammer is used to tap the glove box panel, with the tapping direction set to the normal direction of the glove box panel. In this example, the computer device acquires test data generated after at least two taps of the hammer on the glove box panel, collected by the data acquisition system, as the second test data. For example, the second test data can be the excitation force generated after the hammer taps the glove box panel and / or the vibration acceleration generated after the hammer taps the glove box panel. In this example, during the test, the hammer can be used to tap the glove box panel at least twice, and all data from at least two tapping processes can be collected and determined as the second test data. Performing at least two taps ensures the reliability of the second test data. Experience shows that using a hammer to strike the glove box mounting frame five times and collecting the second test data during the five strikes on the glove box panel ensures efficient acquisition of the second test data due to the small number of strikes. This facilitates the determination of the target frequency response function of the glove box panel based on the second test data. Furthermore, the second test data formed by the five strikes has a certain degree of reliability, which helps to ensure the accuracy of the results.

[0066] The target frequency response function refers to the transfer function corresponding to the glove box panel obtained based on the acquired second test data and the pre-set test parameters.

[0067] As an example, in step S104, the computer device obtains the target frequency response function corresponding to the glove box panel based on the second test data. In this example, the computer device has preset test parameters input by the user, such as analysis bandwidth, frequency resolution, sensor range, hammer trigger voltage, and windowing. In this example, the analysis bandwidth is not less than 100Hz, and the frequency resolution is not less than 1Hz. In this example, the analysis bandwidth is set to 256Hz, the frequency resolution is 1Hz, the response voltage when excited by the hammer is obtained experimentally, the sensor range and hammer trigger voltage are set, and windowing is set according to the pulse of the hammer action. The computer device obtains the frequency response function of the glove box panel corresponding to the second test data based on the obtained second test data and the preset test parameters, and uses this frequency response function as the target frequency response function. In this example, the target frequency response function corresponding to the glove box panel is obtained based on the obtained second test data, making it feasible to determine the glove box installation modal frequency based on the target frequency response function.

[0068] As an example, in step S105, after obtaining the target transfer function from the glove box mounting frame to the glove box panel and the target frequency response function corresponding to the glove box panel, the computer device compares the target transfer function and the target frequency response function to distinguish the glove box mounting modal frequencies with smaller frequency intervals from the natural frequencies of the glove box panel, thus determining the glove box mounting modal frequencies. In this example, the glove box mounting modal frequencies are determined based on the target transfer function and the target frequency response function. By comprehensively considering both the transfer function and the frequency response function, and distinguishing the glove box mounting modal frequencies with smaller frequency intervals from the natural frequencies of the glove box panel, the accuracy of the finally determined glove box mounting modal frequencies is higher.

[0069] The method for determining the glove box installation modal frequencies provided in this embodiment obtains the target transfer function by collecting first test data during the tapping of the glove box installation frame, and obtains the target frequency response function by collecting second test data during the tapping of the glove box panel. Based on the target transfer function and the target frequency response function, the glove box installation modal frequencies are determined. By comprehensively considering the transfer function and the frequency response function, the method distinguishes between the glove box installation modal frequencies with small frequency intervals and the natural frequencies of the glove box panel, thereby improving the efficiency and accuracy of the final determination of the glove box installation modal frequencies.

[0070] In one embodiment, such as Figure 2 As shown, after step S101, that is, after acquiring the first test data during the process of striking the glove box mounting frame, the method for determining the glove box mounting modal frequency further includes:

[0071] S201: Determine whether the first test data is reliable data;

[0072] S202: If the first test data is reliable data, then execute the target transfer function to obtain the glove box mounting frame to the glove box panel based on the first test data;

[0073] S203: If the first test data is unreliable, then execute the process of acquiring the first test data collected during the process of knocking on the glove box installation frame.

[0074] As an example, in step S201, after acquiring the first test data, the computer device needs to determine whether the first test data is reliable. Understandably, the first test data acquired after tapping the glove box mounting frame may not fully meet the requirements for obtaining the target transfer function; therefore, it is necessary to determine whether the acquired first test data is reliable. In this example, determining whether the first test data is reliable ensures higher accuracy of the target transfer function subsequently obtained based on the first test data.

[0075] As an example, in step S202, after the computer device determines that the first test data is reliable data, it executes step S102, which involves obtaining the target transfer function from the glove box mounting frame to the glove box panel based on the first test data. In this example, the computer device obtains the first test data collected after at least two taps on the glove box mounting frame, obtains the transfer function corresponding to the first test data, processes the transfer function, and obtains the target transfer function.

[0076] As an example, in step S203, after the computer device determines that the first test data is unreliable data, it executes step S101, that is, to acquire the first test data collected during the tapping of the glove box mounting frame. In this example, if the first test data is unreliable data, the tapping of the glove box mounting frame continues until the acquired first test data is reliable data.

[0077] The glove box mounting modal frequency determination method provided in this embodiment determines whether the first test data obtained by tapping the glove box mounting frame is reliable data. If it is reliable data, the corresponding target transfer function is obtained based on the first test data. If it is unreliable data, the glove box mounting frame is tapped again until the first test data obtained is reliable data. This method determines the reliability of the first test data, improving the accuracy of the target transfer function obtained based on the first test data.

[0078] In one embodiment, in step S101, the first test data includes at least two first impact data points, each first impact data point being data generated during the process of striking the glove box mounting frame once. Understandably, the glove box mounting frame is struck at least twice, each strike generating one first impact data point. The at least two first impact data points generated from the at least two strikes are used as the first test data; therefore, the first test data includes at least two first impact data points. For example, each first impact data point includes the excitation force generated by the hammer each time it strikes the glove box mounting frame and / or the vibration acceleration generated by the hammer striking the glove box mounting frame.

[0079] In one embodiment, such as Figure 3 As shown, step S201, which determines whether the first test data is reliable data, includes:

[0080] S301: Based on at least two first tap data, obtain the first coherence function corresponding to the first test data;

[0081] S302: If the first coherence function is greater than the first coherence threshold, then the first test data is determined to be reliable data;

[0082] S303: If the first coherence function is not greater than the first coherence threshold, then the first test data is determined to be unreliable data.

[0083] The first impact data is the data generated during the process of striking the glove box installation frame once, and at least two first impact data make up the first test data.

[0084] As an example, in step S301, the computer device obtains a first coherence function corresponding to first test data composed of at least two first tapping data points. In this example, the computer device obtains at least two first tapping data points, obtains the average of multiple first tapping data points before the last first tapping data point, and obtains the coherence function between the average and the last first tapping data point. For example, if there are N first tapping data points, the average of N-1 first tapping data points before the Nth first tapping data point is obtained, and the coherence function between the average and the Nth first tapping data point is obtained. This coherence function is used as the first coherence function corresponding to the first test data. In this example, obtaining the first coherence function corresponding to the first test data facilitates subsequent determination of whether the first test data is reliable data based on the first coherence function.

[0085] The first coherence threshold is used to determine whether the first test data is reliable data. In this example, the first coherence threshold can be set to 0.9.

[0086] As an example, in step S302, after the computer device determines that the first coherence function is greater than the first coherence threshold, it determines that the first test data is reliable data. In this example, after determining that the first coherence function corresponding to the first test data is greater than the set first coherence threshold, the computer device determines that the first test data is reliable data, so that the target transfer function subsequently obtained based on the first test data has higher accuracy.

[0087] As an example, in step S303, if the computer device determines that the first coherence function is not greater than the first coherence threshold, then the first test data is determined to be unreliable data. In this example, after determining that the first coherence function corresponding to the first test data is not greater than the set first coherence threshold, the computer device determines that the first test data is unreliable data.

[0088] The glove box installation mode frequency determination method provided in this embodiment sets a first coherence threshold, and determines whether the first test data is reliable data based on whether the first coherence function corresponding to the first test data is greater than the first coherence threshold. This method enables the target transfer function obtained subsequently based on the first test data to have high accuracy.

[0089] In one embodiment, such as Figure 4 As shown, step 102, which involves obtaining the target transfer function from the glove box mounting frame to the glove box panel based on the first test data, includes:

[0090] S401: Based on each first tap data, obtain the first transfer function corresponding to each first tap data;

[0091] S402: Obtain the target transfer function from the glove box mounting frame to the glove box panel based on the first transfer function corresponding to at least two first tapping data.

[0092] Here, the first transfer function refers to the transfer function corresponding to each first tap data.

[0093] As an example, in step S401, assuming the first test data is reliable data, the computer device obtains the transfer function corresponding to each first tap data and preset test parameters in the first test data, and uses this as the first transfer function corresponding to each first tap data. Understandably, each first tap data corresponds to a first transfer function. In this example, obtaining the first transfer function corresponding to each first tap data makes it feasible to subsequently obtain the target transfer function based on the first transfer function.

[0094] As an example, in step S402, the computer device obtains the target transfer function from the glove box mounting frame to the glove box panel based on at least two first transfer functions corresponding to at least two first tapping data points in the first test data. For example, the computer device can calculate the mean of the at least two first transfer functions and determine the calculated mean as the target transfer function from the glove box mounting frame to the glove box panel. Alternatively, the computer device can use a fitting algorithm to fit the at least two first transfer functions to obtain the target transfer function from the glove box mounting frame to the glove box panel. In this example, obtaining the target transfer function from the glove box mounting frame to the glove box panel based on the first transfer functions improves the accuracy of the target transfer function.

[0095] The glove box installation modal frequency determination method provided in this embodiment obtains a first transfer function corresponding to each first tapping data, and obtains the target transfer function from the glove box installation frame to the glove box panel based on the first transfer function, thereby improving the accuracy of the target transfer function.

[0096] In one embodiment, such as Figure 5 As shown, after step 103, that is, after acquiring the second test data during the process of tapping the glove box panel, the method for determining the glove box mounting modal frequency further includes:

[0097] S501: Determine whether the second test data is reliable data;

[0098] S502: If the second test data is reliable data, then execute the process of obtaining the target frequency response function corresponding to the glove box panel based on the second test data;

[0099] S503: If the second test data is unreliable, then execute the process of acquiring the second test data collected during the tapping of the glove box panel.

[0100] As an example, in step S501, after acquiring the second test data, the computer device needs to determine whether the second test data is reliable. Understandably, the second test data acquired after tapping the glove box panel may not perfectly match the requirements for obtaining the target frequency response function; therefore, it is necessary to determine whether the acquired second test data is reliable. In this example, determining whether the second test data is reliable ensures higher accuracy of the target frequency response function subsequently obtained based on the second test data.

[0101] As an example, in step S502, after the computer device determines that the second test data is reliable data, it executes step S104, that is, based on the second test data, it obtains the target frequency response function corresponding to the glove box panel. In this example, the computer device obtains the second test data collected after tapping the glove box panel at least twice, obtains the frequency response function corresponding to the second test data, processes the frequency response function, and obtains the target frequency response function.

[0102] As an example, in step S503, after the computer device determines that the second test data is unreliable data, it executes step S103, that is, to acquire the second test data collected during the tapping of the glove box panel. In this example, if the second test data is unreliable data, the tapping of the glove box panel continues until the acquired second test data is reliable data.

[0103] The method for determining the modal frequency of a glove box provided in this embodiment determines whether the second test data obtained by tapping the glove box panel is reliable data. If it is reliable data, the corresponding target frequency response function is obtained based on the second test data. If it is unreliable data, the glove box panel is tapped again until the obtained second test data is reliable data. This method determines the reliability of the second test data, thereby improving the accuracy of the target frequency response function obtained based on the second test data.

[0104] In one embodiment, in step S103, the second test data includes at least two second impact data points, each of which is data generated during the process of striking the glove box panel once. Understandably, the glove box panel is struck at least twice, each strike generating one second impact data point. The at least two second impact data points generated from these at least two strikes are used as the second test data; therefore, the second test data includes at least two second impact data points. For example, each second impact data point includes the excitation force generated after each strike of the glove box panel by the hammer and / or the vibration acceleration generated after the hammer strikes the glove box panel.

[0105] In one embodiment, such as Figure 6As shown, step S501, which determines whether the second test data is reliable data, includes:

[0106] S601: Based on at least two second tapping data, obtain the second coherence function corresponding to the second test data;

[0107] S602: If the second coherence function is greater than the second coherence threshold, then the second test data is determined to be reliable data;

[0108] S603: If the second coherence function is not greater than the second coherence threshold, then the second test data is determined to be unreliable data.

[0109] The second tapping data is the data generated by tapping the glove box panel once, and at least two second tapping data make up the second test data.

[0110] As an example, in step S601, the computer device obtains a second coherence function corresponding to the second test data composed of at least two second tapping data points. In this example, the computer device obtains at least two second tapping data points, obtains the average of multiple second tapping data points before the last second tapping data point, and obtains the coherence function between the average and the last second tapping data point. For example, if there are M second tapping data points, the average of the M-1 second tapping data points before the Mth second tapping data point is obtained, and the coherence function between the average and the Mth second tapping data point is obtained. This coherence function is used as the second coherence function corresponding to the second test data point. In this example, obtaining the second coherence function corresponding to the second test data point facilitates subsequent determination of whether the second test data point is reliable data based on the second coherence function.

[0111] The second coherence threshold is used to determine whether the second test data is reliable. In this example, the second coherence threshold can be set to 0.9.

[0112] As an example, in step S602, after the computer device determines that the second coherence function is greater than the second coherence threshold, it determines that the second test data is reliable data. In this example, after determining that the second coherence function corresponding to the second test data is greater than the set second coherence threshold, the computer device determines that the second test data is reliable data, so that the target frequency response function subsequently obtained based on the second test data has high accuracy.

[0113] As an example, in step S603, if the computer device determines that the second coherence function is not greater than the second coherence threshold, then the second test data is determined to be unreliable data. In this example, after determining that the second coherence function corresponding to the second test data is not greater than the set second coherence threshold, the computer device determines that the second test data is unreliable data.

[0114] The glove box installation mode frequency determination method provided in this embodiment sets a second coherence threshold, and determines whether the second test data is reliable data based on whether the second coherence function corresponding to the second test data is greater than the second coherence threshold. This method enables the target frequency response function obtained subsequently based on the second test data to have high accuracy.

[0115] In one embodiment, such as Figure 7 As shown, step S104, which involves obtaining the target frequency response function corresponding to the glove box panel based on the second test data, includes:

[0116] S701: Based on each second tap data, obtain the second frequency response function corresponding to each second tap data;

[0117] S702: Obtain the target frequency response function corresponding to the glove box panel based on the second frequency response function corresponding to at least two second tapping data.

[0118] The second frequency response function refers to the frequency response function corresponding to each second tap data.

[0119] As an example, in step S701, assuming the second test data is reliable data, the computer device obtains the frequency response function corresponding to each second tapping data based on each second tapping data and preset test parameters in the second test data, and uses this as the second frequency response function corresponding to each second tapping data. Understandably, each second tapping data corresponds to a second frequency response function. In this example, obtaining the second frequency response function corresponding to each second tapping data makes it feasible to subsequently obtain the target frequency response function based on the second frequency response function.

[0120] As an example, in step S702, the computer device obtains the target frequency response function corresponding to the glove box panel based on at least two second frequency response functions corresponding to at least two second tapping data in the second test data. For example, the computer device can calculate the mean of the at least two second frequency response functions and determine the calculated mean as the target frequency response function corresponding to the glove box panel. Alternatively, the computer device can use a fitting algorithm to fit the at least two second frequency response functions to obtain the target frequency response function corresponding to the glove box panel. In this example, obtaining the target frequency response function of the glove box panel based on the second frequency response function improves the accuracy of the target frequency response function.

[0121] The glove box installation modal frequency determination method provided in this embodiment obtains a second frequency response function corresponding to each second tapping data, and obtains the target frequency response function corresponding to the panel based on the second frequency response function, thereby improving the accuracy of the target frequency response function.

[0122] In one embodiment, such as Figure 8As shown, step S105, which involves obtaining the glove box installation modal frequency based on the target transfer function and the target frequency response function, includes:

[0123] S801: Obtain the first peak frequency and the second peak frequency of the glove box panel according to the target transfer function;

[0124] S802: Obtain the third peak frequency of the glove box panel based on the target frequency response function;

[0125] S803: The frequency that is different from the third peak frequency among the first peak frequency and the second peak frequency is determined as the glove box installation mode frequency.

[0126] Among them, the first peak frequency and the second peak frequency are the two frequencies corresponding to the two peaks of the target transfer function.

[0127] As an example, in step S801, the computer device obtains the first peak frequency and the second peak frequency corresponding to the glove box panel based on the target transfer function. In this example, after obtaining the target transfer function, the computer device identifies the two peaks corresponding to the target transfer function and determines the frequencies corresponding to these two peaks as the first peak frequency and the second peak frequency, respectively.

[0128] The third peak frequency is the frequency corresponding to the peak value of the target frequency response function.

[0129] As an example, in step S802, the computer device obtains the third peak frequency corresponding to the glove box panel based on the target frequency response function. In this example, after obtaining the target frequency response function, the computer device identifies the peak value corresponding to the target frequency response function and determines the frequency corresponding to that peak value as the third peak frequency.

[0130] As an example, in step S803, the computer device determines the frequency that differs from the third peak frequency among the first and second peak frequencies as the glove box mounting modal frequency. In this example, the computer device determines the frequency that differs from the third peak frequency among the first and second peak frequencies and uses this frequency as the glove box mounting modal frequency. Understandably, based on the reciprocity of the transfer function, the target transfer function from the glove box mounting frame to the glove box panel has two peak frequencies: one peak frequency is the natural frequency of the glove box panel, and the other peak frequency is the glove box mounting modal frequency. The peak value of the target frequency response function of the glove box panel reflects the natural frequency of the glove box panel. Therefore, by comparing the two peak frequencies of the target transfer function with the peak frequency of the target frequency response function, the peak frequency that differs from the peak frequency of the target frequency response function is the glove box mounting modal frequency.

[0131] like Figure 9As shown, the graphs of the target transfer function and the target frequency response function are given in an example. From the graphs, we can see that the first peak frequency of the target transfer function is 44.44 Hz, the second peak frequency is 55.99 Hz, and the third peak frequency of the target frequency response function is 55.99 Hz. Therefore, by comparing the first peak frequency, the second peak frequency, and the third peak frequency, we can obtain that the glove box installation mode frequency in this example is 44.44 Hz.

[0132] In this example, the glove box installation mode frequency is obtained by comparing the first peak frequency, the second peak frequency, and the third peak frequency. The target transfer function and the target frequency response function are taken into account, and the natural frequency of the glove box panel with a small interval is distinguished from the glove box installation mode frequency, so that the obtained glove box installation mode frequency is more accurate.

[0133] The glove box installation modal frequency determination method provided in this embodiment obtains the peak frequencies of the target transfer function and the target frequency response function, respectively. The peak frequencies of the target transfer function that are different from the peak frequencies of the target frequency response function are taken as the glove box installation modal frequencies. By comprehensively considering the target transfer function and the target frequency response function, the natural frequencies of the glove box panels with small intervals are distinguished from the glove box installation modal frequencies, thereby improving the accuracy of the glove box installation modal frequencies.

[0134] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0135] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 10 As shown, the computer device includes a processor, memory, network interface, and database connected via a system bus. The processor provides computational and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system, computer programs, and the database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database stores data used or generated during the execution of the glovebox installation modal frequency determination method. The network interface is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements a glovebox installation modal frequency determination method.

[0136] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the glove box installation mode frequency determination method described in the above embodiment, for example... Figure 1 As shown in S101-S105, or Figures 2 to 8 As shown in the figure, to avoid repetition, it will not be repeated here.

[0137] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When executed by a processor, the computer program implements the glove box installation mode frequency determination method described in the above embodiment, for example... Figure 1 As shown in S101-S105, or Figures 2 to 8 As shown in the diagram, to avoid repetition, it will not be described again here. The computer-readable storage medium may be non-volatile or volatile.

[0138] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. This computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0139] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is used as an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0140] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A method for determining the installation modal frequencies of a glove box, characterized in that, include: Acquire the first test data collected during the process of impacting the glove box installation frame; Based on the first test data, obtain the target transfer function from the glove box mounting frame to the glove box panel; Acquire the second test data collected during the process of tapping the glove box panel; Based on the second test data, obtain the target frequency response function corresponding to the glove box panel; According to the target transfer function, the first peak frequency and the second peak frequency of the glove box panel are obtained; according to the target frequency response function, the third peak frequency of the glove box panel is obtained; the frequency that is different from the third peak frequency among the first peak frequency and the second peak frequency is determined as the glove box installation mode frequency.

2. The method for determining the installation modal frequency of a glove box as described in claim 1, characterized in that, After acquiring the first test data during the process of striking the glove box mounting frame, the method for determining the glove box mounting modal frequency further includes: Determine whether the first test data is reliable data; If the first test data is reliable data, then execute the target transfer function to obtain the glove box mounting frame to the glove box panel based on the first test data; If the first test data is unreliable, then the process of acquiring the first test data collected during the process of tapping the glove box installation frame is executed.

3. The method for determining the installation modal frequency of the glove box as described in claim 2, characterized in that, The first test data includes at least two first tap data, each of which is data generated by tapping the glove box installation frame once during the process; The determination of whether the first test data is reliable data includes: Based on at least two of the first tapping data, obtain the first coherence function corresponding to the first test data; If the first coherence function is greater than the first coherence threshold, then the first test data is determined to be reliable data; If the first coherence function is not greater than the first coherence threshold, then the first test data is determined to be unreliable data.

4. The method for determining the installation modal frequency of a glove box as described in claim 3, characterized in that, The step of obtaining the target transfer function from the glove box mounting frame to the glove box panel based on the first test data includes: Based on each of the first tapping data, obtain the first transfer function corresponding to each of the first tapping data. Based on the first transfer function corresponding to at least two of the first tapping data, obtain the target transfer function from the glove box mounting frame to the glove box panel.

5. The method for determining the installation modal frequency of a glove box as described in claim 1, characterized in that, After acquiring the second test data during the process of obtaining the tapping glove box panel, the method for determining the glove box mounting modal frequency further includes: Determine whether the second test data is reliable data; If the second test data is reliable data, then the step of obtaining the target frequency response function corresponding to the glove box panel based on the second test data is executed; If the second test data is unreliable, then the second test data collected during the process of obtaining the glove box panel by tapping is executed.

6. The method for determining the installation modal frequency of a glove box as described in claim 5, characterized in that, The second test data includes at least two second tapping data, each of which is data generated during the tapping of the glove box panel once; The determination of whether the second test data is reliable data includes: Based on at least two of the second tapping data, obtain the second coherence function corresponding to the second test data; If the second coherence function is greater than the second coherence threshold, then the second test data is determined to be reliable data; If the second coherence function is not greater than the second coherence threshold, then the second test data is determined to be unreliable data.

7. The method for determining the installation modal frequency of a glove box as described in claim 6, characterized in that, The step of obtaining the target frequency response function corresponding to the glove box panel based on the second test data includes: Based on each of the second tapping data, obtain the second frequency response function corresponding to each of the second tapping data; The target frequency response function corresponding to the glove box panel is obtained based on the second frequency response function corresponding to at least two of the second tapping data.

8. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the glove box installation mode frequency determination method as described in any one of claims 1 to 7.

9. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the glove box installation mode frequency determination method as described in any one of claims 1 to 7.

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