Evaluation method, device and equipment for vehicle body suspension vibration isolation performance and storage medium

Abstract

A vehicle body suspension vibration isolation performance evaluation method, device and equipment and a storage medium relate to the technical field of vehicle vibration isolation, and the method comprises the following steps: testing a vehicle under each working condition, and obtaining vibration data under each working condition; analyzing the vibration data under each working condition, and calculating a target vibration acceleration under each working condition; based on the target vibration acceleration under each working condition and a preset vibration isolation rate calculation formula, calculating the vibration isolation rate in the X / Y / Z direction under each working condition; based on a preset scoring strategy and the vibration isolation rate in the X / Y / Z direction under each working condition, the vibration isolation performance of the vehicle body suspension is evaluated, and the technical problem that the vibration isolation performance of the vehicle body suspension is difficult to comprehensively evaluate through a single working condition due to the fact that the vibration isolation performance of the vehicle body suspension under different working conditions is different in the prior art is solved. The vibration isolation performance of the vehicle body suspension can be comprehensively evaluated, so that the vibration isolation performance of the vehicle body suspension under various working conditions can be comprehensively judged.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle vibration isolation, and particularly relates to a method, device, equipment and storage medium for evaluating the vibration isolation performance of a vehicle body mount. Background Art

[0002] With the intensification of competition in the automotive market, automotive NVH problems have received increasing attention, and customers have higher and higher requirements for comfort. For light commercial vehicles with a non-load-bearing body, the vehicle body mounts not only affect the idle vibration and ride comfort, but may even affect the braking jitter. In the related art, when designing vehicle body mounts, designers will consider adjusting the mount structure and the stiffness of the cushion to improve the vibration isolation performance. However, the vibration isolation performance of vehicle body mounts under different working conditions may vary, and it is difficult to evaluate the vibration isolation performance of vehicle body mounts through a single working condition. Therefore, there is an urgent need for a method to comprehensively evaluate the vibration isolation performance of vehicle body mounts. Summary of the Invention

[0003] The present application provides a method, device, equipment and storage medium for evaluating the vibration isolation performance of a vehicle body mount, which can solve the technical problem in the prior art that the vibration isolation performance of vehicle body mounts under different working conditions may vary, and it is difficult to evaluate the vibration isolation performance of vehicle body mounts through a single working condition.

[0004] In a first aspect, an embodiment of the present application provides a method for evaluating the vibration isolation performance of a vehicle body mount, and the method for evaluating the vibration isolation performance of the vehicle body mount includes:

[0005] Testing the vehicle under each working condition to obtain the vibration data in the X / Y / Z directions at the lower frame end and the vibration data in the X / Y / Z directions at the vehicle body end of the vehicle under each of the working conditions;

[0006] Analyzing the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end under each of the working conditions, and calculating the target vibration acceleration in the X / Y / Z directions at the frame end and the target vibration acceleration in the X / Y / Z directions at the vehicle body end under each of the working conditions;

[0007] Based on the target vibration acceleration in the X / Y / Z directions at the frame end, the target vibration acceleration in the X / Y / Z directions at the vehicle body end under each of the working conditions and a preset vibration isolation rate calculation formula, calculating the vibration isolation rate in the X / Y / Z directions under each of the working conditions;

[0008] Evaluating the vibration isolation performance of the vehicle body mount based on a preset scoring strategy and the vibration isolation rate in the X / Y / Z directions under each of the working conditions.

[0009] Combined with the first aspect, in an implementation manner, the evaluating the vibration isolation performance of the vehicle body mount based on a preset scoring strategy and the vibration isolation rate in the X / Y / Z directions under each of the working conditions includes:

[0010] The preset scoring strategy includes a preset vibration isolation rate scoring grade table and the weight coefficients of each working condition;

[0011] Based on the preset vibration isolation rate scoring grade table, score the vibration isolation rates in the X / Y / Z directions under each of the working conditions to determine the vibration isolation performance scoring grades of the vibration isolation rates in the X / Y / Z directions under each of the working conditions;

[0012] According to the vibration isolation performance scoring grades under each of the working conditions and the weight coefficients of each of the working conditions, calculate the comprehensive score;

[0013] Based on the comprehensive score, evaluate the vibration isolation performance of the body mounts.

[0014] Combined with the first aspect, in an implementation manner, the calculating the comprehensive score according to the vibration isolation performance scoring grades under each of the working conditions and the weight coefficients of each of the working conditions includes:

[0015] Obtain a preset calculation formula;

[0016] Based on the preset calculation formula, the vibration isolation performance scoring grades under each of the working conditions, and the weight coefficients of each of the working conditions, calculate the comprehensive score.

[0017] Combined with the first aspect, in an implementation manner, the working conditions include idle speed, smooth asphalt road, and general road conditions; the analyzing the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the body end under each of the working conditions, and calculating the target vibration accelerations in the X / Y / Z directions at the frame end and the target vibration accelerations in the X / Y / Z directions at the body end under each of the working conditions includes:

[0018] If the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the body end obtained belong to the idle speed, smooth asphalt road, and general road conditions, then analyze them through Fourier transform technology to obtain the frequency-domain vibration data in the X / Y / Z directions at the frame end and the frequency-domain vibration data in the X / Y / Z directions at the body end;

[0019] Based on a preset frequency range, calculate the corresponding effective values for the frequency-domain vibration data in the X / Y / Z directions at the frame end and the frequency-domain vibration data in the X / Y / Z directions at the body end, and use the effective values as the target vibration accelerations.

[0020] In combination with the first aspect, in one implementation, analyzing the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the vehicle body end under each of the working conditions, and calculating the target vibration accelerations in the X / Y / Z directions of the frame end and the target vibration accelerations in the X / Y / Z directions of the vehicle body end under each of the working conditions includes:

[0021] If the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the vehicle body end obtained belong to the pulse road and braking working conditions, then calculate the time-domain vibration data in the X / Y / Z directions of the frame end and the time-domain vibration data in the X / Y / Z directions of the vehicle body end based on a preset frequency range to obtain the corresponding peak-peak values, and use the peak-peak values as the target vibration accelerations.

[0022] In combination with the first aspect, in one implementation, testing the vehicle to be tested under each working condition, and obtaining the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the vehicle body end in the vehicle to be tested includes:

[0023] If the working condition is a smooth asphalt road condition, then test the vehicle to be tested on a smooth and straight asphalt road surface with a preset length at a first preset vehicle speed to obtain the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the vehicle body end in the vehicle to be tested, where the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the vehicle body end in the vehicle to be tested are at least one group.

[0024] In combination with the first aspect, in one implementation, testing the vehicle to be tested under each working condition, and obtaining the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the vehicle body end in the vehicle to be tested includes:

[0025] If the working condition is a pulse road condition, then test the vehicle to be tested on a pulse road surface with a preset length at a second preset vehicle speed to obtain the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the vehicle body end in the vehicle to be tested, where the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the vehicle body end in the vehicle to be tested are at least one group.

[0026] In a second aspect, an evaluation device for the vibration isolation performance of a vehicle body mount provided by an embodiment of the present application is characterized in that the evaluation device for the vibration isolation performance of the vehicle body mount includes:

[0027] A test module for testing a vehicle under each working condition and obtaining the vibration data in the X / Y / Z directions of the lower frame end and the vibration data in the X / Y / Z directions of the vehicle body end in the vehicle under each of the working conditions;

[0028] A first calculation module, configured to analyze the vibration data in the X / Y / Z directions of the vehicle frame end and the vibration data in the X / Y / Z directions of the vehicle body end under each of the working conditions, and calculate the target vibration acceleration in the X / Y / Z directions of the vehicle frame end and the target vibration acceleration in the X / Y / Z directions of the vehicle body end under each of the working conditions;

[0029] A second calculation module, configured to calculate the vibration isolation rates in the X / Y / Z directions under each of the working conditions based on the target vibration accelerations in the X / Y / Z directions of the vehicle frame end, the target vibration accelerations in the X / Y / Z directions of the vehicle body end, and a preset vibration isolation rate calculation formula under each of the working conditions;

[0030] An evaluation module, configured to evaluate the vibration isolation performance of the vehicle body mounts based on a preset scoring strategy and the vibration isolation rates in the X / Y / Z directions under each of the working conditions.

[0031] In a third aspect, an embodiment of the present application provides an evaluation device for the vibration isolation performance of a vehicle body mount. The evaluation device for the vibration isolation performance of a vehicle body mount includes a processor, a memory, and an evaluation program for the vibration isolation performance of a vehicle body mount that is stored on the memory and can be executed by the processor. When the evaluation program for the vibration isolation performance of a vehicle body mount is executed by the processor, the steps of the above-mentioned method for evaluating the vibration isolation performance of a vehicle body mount are implemented.

[0032] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which an evaluation program for the vibration isolation performance of a vehicle body mount is stored. When the evaluation program for the vibration isolation performance of a vehicle body mount is executed by a processor, the steps of the above-mentioned method for evaluating the vibration isolation performance of a vehicle body mount are implemented.

[0033] The beneficial effects brought by the technical solutions provided by the embodiments of the present application include:

[0034] By testing the vehicle under various working conditions, vibration data in the X / Y / Z directions at the lower frame end and vibration data in the X / Y / Z directions at the body end of the vehicle under each of the working conditions are obtained; the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the body end under each of the working conditions are analyzed, and the target vibration accelerations in the X / Y / Z directions at the frame end and the target vibration accelerations in the X / Y / Z directions at the body end under each of the working conditions are calculated; based on the target vibration accelerations in the X / Y / Z directions at the frame end, the target vibration accelerations in the X / Y / Z directions at the body end under each of the working conditions, and a preset vibration isolation rate calculation formula, the vibration isolation rates in the X / Y / Z directions under each of the working conditions are calculated; based on a preset scoring strategy and the vibration isolation rates in the X / Y / Z directions under each of the working conditions, the vibration isolation performance of the body mounts is evaluated, solving the technical problem in the related art that there are differences in the vibration isolation performance of the body mounts under different working conditions and it is difficult to comprehensively evaluate the vibration isolation performance of the body mounts through a single working condition. The present application provides a method that can comprehensively evaluate the vibration isolation performance of the body mounts through multiple working conditions, so as to comprehensively judge the vibration isolation performance of the body mounts under various working conditions. Description of the Drawings

[0035] Figure 1 It is a schematic flowchart of an embodiment of the method for evaluating the vibration isolation performance of the body mounts of the present application;

[0036] Figure 2 For the present application Figure 1 It is a schematic flowchart of the refinement of step S40 in the present application;

[0037] Figure 3 It is a schematic diagram of the functional modules of an embodiment of the device for evaluating the vibration isolation performance of the body mounts of the present application;

[0038] Figure 4 It is a schematic diagram of the hardware structure of the device for evaluating the vibration isolation performance of the body mounts involved in the solution of the embodiment of the present application. Detailed Embodiment

[0039] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0040] First, some technical terms in the present application are explained to facilitate the understanding of the present application by those skilled in the art.

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the following will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0042] In a first aspect, an embodiment of this application provides a method for evaluating the vibration isolation performance of a vehicle body mount.

[0043] In one embodiment, referring to Figure 1 , Figure 1 is a schematic flowchart of the first embodiment of the method for evaluating the vibration isolation performance of the vehicle body mount of this application. As Figure 1 shown, the method for evaluating the vibration isolation performance of the vehicle body mount includes:

[0044] Step S10: Test the vehicle under various working conditions to obtain the vibration data in the X / Y / Z directions at the lower frame end and the vibration data in the X / Y / Z directions at the vehicle body end of the vehicle. The working conditions include idle speed, smooth asphalt road, general road, pulse road, and braking condition;

[0045] Exemplarily, first install the active side vibration sensor at the frame end and the passive side sensor at the vehicle body end, and set the bandwidth of the sensor to be greater than 256 Hz. The test direction of the sensor is consistent with the direction of the vehicle coordinate system, and the angular error should be less than or equal to 10°. Among them, the vehicle coordinate system takes the rear direction of the vehicle as the X direction, the right side direction of the vehicle as the Y direction, and the directly above direction of the vehicle as the Z direction.

[0046] When testing the vehicle under the idle speed working condition, after starting the vehicle and fully warming it up, start the test at the in-situ idle speed, and repeat the test of the vibration data in the X / Y / Z directions at the frame end and the vehicle body end at least 1 group. The test time for each group is 15 seconds.

[0047] When testing the vehicle under the general road working condition, control the vehicle to travel a preset distance on the general road at a speed of 60 km / h, and repeat the test of the group vibration data in the X / Y / Z directions at the frame end and the vehicle body end at least 1 group. The test time for each group is 15 seconds.

[0048] When testing the vehicle under the braking condition, control the vehicle to travel on the road at a speed of 40 km / h for a preset duration and then step on the brake pedal, and repeat the test of the group vibration data in the X / Y / Z directions at the frame end and the vehicle body end at least 1 group. The test time for each group is 15 seconds.

[0049] Specifically, the step of testing the vehicle to be tested under various working conditions to obtain the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end of the vehicle to be tested includes:

[0050] If the working condition is a smooth asphalt road condition, test the vehicle to be tested on a smooth and straight asphalt road surface with a preset length at a first preset vehicle speed to obtain the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the body end of the vehicle to be tested. Among them, the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the body end of the vehicle to be tested are at least one group.

[0051] Exemplarily, when testing the vehicle under the smooth and straight asphalt road condition, first install the active side vibration sensor at the frame end and the passive side sensor at the body end, and set the vibration sensor bandwidth to be greater than 256 Hz. The test direction of the sensor is consistent with the direction of the vehicle coordinate system, and the angle error should be less than or equal to 10°. Among them, the vehicle coordinate system takes the tail direction of the vehicle as the X direction, the right side direction of the vehicle as the Y direction, and the directly above the vehicle as the Z direction. Then, control the vehicle to travel a preset distance on the smooth and straight asphalt road at a speed of 60 km / h, and at least test one group of vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the body end, and the test time is 15 s.

[0052] Specifically, when testing the vehicle to be tested under each working condition to obtain the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the body end of the vehicle to be tested, it further includes: if the working condition is a pulse road condition, test the vehicle to be tested on a pulse road surface with a preset length at a second preset vehicle speed to obtain the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the body end of the vehicle to be tested. Among them, the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the body end of the vehicle to be tested are at least one group.

[0053] Exemplarily, when testing the vehicle under the pulse road condition, first install the active side vibration sensor at the frame end and the passive side sensor at the body end, and set the vibration sensor bandwidth to 128 Hz. The test direction of the sensor is consistent with the direction of the vehicle coordinate system, and the angle error should be less than or equal to 10°. Among them, the vehicle coordinate system takes the tail direction of the vehicle as the X direction, the right side direction of the vehicle as the Y direction, and the directly above the vehicle as the Z direction. Then, control the vehicle to travel a preset distance on the pulse road at a speed of 30 km / h, and at least test one group of vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the body end, and the test time is 15 s.

[0054] Step S20: Analyze the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the body end under each of the working conditions, and calculate the target vibration acceleration in the X / Y / Z directions at the frame end and the target vibration acceleration in the X / Y / Z directions at the body end under each of the working conditions;

[0055] Exemplarily, the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end under each working condition are subjected to time-domain or frequency-domain analysis. If the test working conditions are idle speed, smooth asphalt road, and general road conditions, the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end are subjected to time-domain analysis, and the effective value is calculated and used as the target vibration acceleration. If the test working condition is the pulse road condition, the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end are subjected to frequency-domain analysis, and the peak-peak value is calculated and used as the target vibration acceleration. Among them, since the vibration acceleration under idle speed, smooth asphalt road, and general road conditions is relatively stable and the vibration data of the whole process is concerned, frequency-domain analysis is performed on it. The vibration acceleration under the pulse road condition changes greatly in a short time, and the vibration data at the moment with a larger vibration amplitude is more concerned, so time-domain analysis is performed

[0056] Specifically, the analysis of the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end under each of the working conditions, and the calculation of the target vibration acceleration in the X / Y / Z directions at the frame end and the target vibration acceleration in the X / Y / Z directions at the vehicle body end under each of the working conditions, include:

[0057] If the obtained vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end belong to the idle speed, smooth asphalt road, and general road conditions, they are analyzed by Fourier transform technology to obtain the frequency-domain vibration data in the X / Y / Z directions at the frame end and the frequency-domain vibration data in the X / Y / Z directions at the vehicle body end; based on a preset frequency range, the frequency-domain vibration data in the X / Y / Z directions at the frame end and the frequency-domain vibration data in the X / Y / Z directions at the vehicle body end are calculated to obtain the corresponding effective values, and the effective values are used as the target vibration acceleration in the X / Y / Z directions at the frame end and the target vibration acceleration in the X / Y / Z directions at the vehicle body end under each of the working conditions.

[0058] Exemplarily, the obtained vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end under idle speed, smooth asphalt road, and general road conditions are transformed from the time domain to the frequency domain by Fourier transform technology.

[0059] Obtain the rotational speed v of the idle speed condition, the unit of this rotational speed is, and the calculation formula for the first-order excitation frequency is The calculation formula for the second-order excitation frequency is f2=2f1, where f1 is the first-order excitation frequency and f2 is the second-order excitation frequency. In the frequency domain vibration data in the X / Y / Z direction of the frame end and the vibration data in the X / Y / Z direction of the vehicle body end, select the vibration acceleration corresponding to the second-order excitation frequency as the effective value RMS, and use the effective value RMS as the target vibration acceleration in the X / Y / Z direction of the frame end and the target vibration acceleration in the X / Y / Z direction of the vehicle body end under each of the working conditions. For example, under the idling condition, the measured speed is 750rpm / min. Substituting this speed into the calculation formula for the first-order excitation frequency and the second-order excitation frequency, the second-order excitation frequency is 25Hz. In the vibration data in the X direction of the vehicle body end, the vibration acceleration corresponding to 25Hz is selected as 3m / s 2 , the vibration acceleration is 3m / s 2 As an effective value, the target vibration acceleration in the X direction of the vehicle body end is 3m / s 2 The target vibration accelerations in the X / Y / Z directions of the remaining frame ends and the target vibration accelerations in the Y / Z directions of the vehicle body ends are calculated in the same manner.

[0060] The vibration data in the frequency range of 1 to 100 Hz are selected from the vibration data of the smooth asphalt road condition for automatic analysis, and the target vibration acceleration in the X / Y / Z directions of the frame end and the target vibration acceleration in the X / Y / Z directions of the body end under this condition are calculated.

[0061] The vibration data in the frequency range of 1 to 30 Hz are selected from the vibration data of general highway conditions for automatic analysis, and the target vibration acceleration in the X / Y / Z directions of the frame end and the target vibration acceleration in the X / Y / Z directions of the body end under the condition are calculated.

[0062] Specifically, the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the vehicle body end under each of the working conditions are analyzed to calculate the target vibration acceleration in the X / Y / Z directions of the frame end and the target vibration acceleration in the X / Y / Z directions of the vehicle body end under each of the working conditions, including: if the acquired vibration data in the X / Y / Z directions of the frame end and the acquired vibration data in the X / Y / Z directions of the vehicle body end belong to the pulse circuit working condition, then based on a preset frequency range, the time domain vibration data in the X / Y / Z directions of the frame end and the time domain vibration data in the X / Y / Z directions of the vehicle body end are calculated to obtain corresponding peak-peak values, and the peak-peak values are used as the target vibration acceleration in the X / Y / Z directions of the frame end and the target vibration acceleration in the X / Y / Z directions of the vehicle body end under each of the working conditions.

[0063] For example, the vibration data obtained under the pulse road condition is analyzed in the time domain, and the peak value of the time domain vibration data is subtracted from the trough value to obtain the corresponding peak-peak value, and the peak-peak value is used as the target vibration acceleration. For example, the peak value of the vibration data in the X direction of the vehicle body end obtained under the pulse road condition is 6m / s 2 , the trough value is -2m / s 2 , subtract the trough value from the peak value to get the peak-peak value of 8m / s 2 , set the peak-peak value to 8m / s 2 The target vibration acceleration in the X direction of the vehicle body end is used as the target vibration acceleration. The calculation method of the target vibration acceleration in the Y / Z direction of the other frame ends and the target vibration acceleration in the X / Y / Z direction of the vehicle body end is similar.

[0064] Step S30: Calculating the vibration isolation rate in the X / Y / Z direction under each of the working conditions based on the target vibration acceleration in the X / Y / Z direction of the frame end and the target vibration acceleration in the X / Y / Z direction of the vehicle body end and a preset vibration isolation rate calculation formula;

[0065] For example, the vibration acceleration a of the vehicle body end in the X direction under the idling condition is xf and the vibration acceleration in the X direction of the vehicle body end direction a bf Substitute into the preset vibration isolation rate calculation formula The vibration isolation rate of the vehicle body end in the X direction under the idling condition is obtained. The calculation method of the vibration isolation rate of the frame end in the Y / Z direction and the vibration isolation rate of the vehicle body end in the X / Y / Z direction is similar.

[0066] Step S40: Evaluate the vibration isolation performance of the vehicle body suspension based on a preset scoring strategy and the vibration isolation rates in the X / Y / Z directions under each of the working conditions.

[0067] Exemplarily, the scoring strategy includes scoring the vibration isolation rates in the X / Y / Z directions under various working conditions based on a preset vibration isolation rate scoring table, then calculating a comprehensive score based on the weight coefficients of each working condition, and finally evaluating the body suspension vibration isolation performance based on the comprehensive score.

[0068] In this embodiment, by testing vehicles under various working conditions, the vibration data in the X / Y / Z directions at the lower frame end and the vibration data in the X / Y / Z directions at the vehicle body end of the vehicle under each of the working conditions are obtained; the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end under each of the working conditions are analyzed, and the target vibration accelerations in the X / Y / Z directions at the frame end and the target vibration accelerations in the X / Y / Z directions at the vehicle body end under each of the working conditions are calculated; based on the target vibration accelerations in the X / Y / Z directions at the frame end, the target vibration accelerations in the X / Y / Z directions at the vehicle body end under each of the working conditions and a preset vibration isolation rate calculation formula, the vibration isolation rates in the X / Y / Z directions under each of the working conditions are calculated; based on a preset scoring strategy and the vibration isolation rates in the X / Y / Z directions under each of the working conditions, the vibration isolation performance of the vehicle body mounts is evaluated, solving the technical problem in the related art that there are differences in the vibration isolation performance of vehicle body mounts under different working conditions and it is difficult to comprehensively evaluate the vibration isolation performance of vehicle body mounts through a single working condition. This application provides a method that can comprehensively evaluate the vibration isolation performance of vehicle body mounts.

[0069] Further, in one embodiment, referring to Figure 2 , Figure 2 is a detailed process schematic diagram of step S40 in this application. As Figure 1 shown, the evaluating the vibration isolation performance of the vehicle body mounts based on a preset scoring strategy and the vibration isolation rates in the X / Y / Z directions under each of the working conditions includes: Figure 2

[0070]

[0071] Step S41: The preset scoring strategy includes a preset vibration isolation rate scoring grade table and weight coefficients for each working condition;

[0072]

[0073] <![CDATA[Vibration isolation rate of smooth asphalt road condition (1 - 100Hz RMS) G2]]> Score Evaluation x ≥ 40%; Y ≥ 40%; Z ≥ 50% 5 Excellent 40% > x ≥ 20%; 40% > Y ≥ 20%; 50% > Z ≥ 40% 4 Good 20% > x ≥ 0%; 20 > Y ≥ 0%; 40% > Z ≥ 30% 3 Acceptable 0 > x ≥ -20%; 0 > Y ≥ -20%; 30% > Z ≥ 20% 2 Poor x < -20%; Y < -20%; Z < 20% 1 Very Poor

[0074] <![CDATA[Vibration isolation rate under general highway conditions (1 - 30 Hz) G3]]> Score Evaluation x ≥ 0%; Y ≥ 50%; Z ≥ 40% 5 Excellent 0% > x ≥ -15%; 50% > Y ≥ 30%; 40% > Z ≥ 30% 4 Good -15% > x ≥ -30%; 30 > Y ≥ 10%; 30% > Z ≥ 20% 3 Acceptable -30 > x ≥ -50%; 10 > Y ≥ -10%; 20% > Z ≥ 0% 2 Poor x < -50%; Y < -10%; Z < 0% 1 Very Poor

[0075]

[0076] <![CDATA[Vibration isolation rate under braking condition (peak-peak value at 128 Hz) G5]]> Score Evaluation x ≥ 30%; Y ≥ 50%; Z ≥ 40% 5 Excellent 30% > x ≥ 15%; 50% > Y ≥ 30%; 40% > Z ≥ 30% 4 Good 15% > x ≥ 0%; 30 > Y ≥ 10%; 30% > Z ≥ 20% 3 Acceptable 0 > x ≥ -20%; 10 > Y ≥ -10%; 20% > Z ≥ 0% 2 Poor x < -20%; Y < -10%; Z < 0% 1 Very Poor

[0077]

[0078] The weight coefficients for each working condition include: For example, the weight coefficient for the idle speed working condition is 0.3, the weight coefficient for the smooth asphalt road working condition is 0.3, the weight coefficient for the general road working condition is 0.2, the weight coefficient for the pulse road working condition is 0.1, and the weight coefficient for the braking working condition is 0.1.

[0078] Step S42: Score the vibration isolation rates in the X / Y / Z directions under each of the working conditions based on a preset vibration isolation rate scoring grade table to determine the vibration isolation performance scoring grades of the vibration isolation rates in the X / Y / Z directions under each of the working conditions;

[0079] Exemplarily, score the vibration isolation rates in the X / Y / Z directions under each of the working conditions based on a preset vibration isolation rate scoring grade table to determine the vibration isolation performance scoring grades of the vibration isolation rates in the X / Y / Z directions under each of the working conditions. The vibration isolation rates are divided into five grades, each grade corresponding to a vibration isolation rate range, and the corresponding scoring grade is determined according to the calculated vibration isolation rate.

[0080] For example, it is calculated that the vibration isolation rate in the X direction under the pulse road working condition is 29%, the vibration isolation rate in the Y direction is 33%, and the vibration isolation rate in the Z direction is 37%. By querying the preset vibration isolation rate scoring grade table, the score is obtained as 4.

[0081] Step S43: Calculate a comprehensive score according to the vibration isolation performance scoring grades under each of the working conditions and the weight coefficients of each of the working conditions;

[0082] Exemplarily, calculate a comprehensive score according to the vibration isolation performance scoring grades under each of the working conditions and the weight coefficients of each of the working conditions.

[0083] For example, the weight coefficient of the idle speed working condition is 0.3, the weight coefficient of the smooth asphalt road working condition is 0.3, the weight coefficient of the general road working condition is 0.2, the weight coefficient of the pulse road working condition is 0.1, and the weight coefficient of the braking working condition is 0.1. Multiply the scoring grade of each working condition by the corresponding weight coefficient, and then sum to obtain the comprehensive score.

[0084] Specifically, the calculating a comprehensive score according to the vibration isolation performance scoring grades under each of the working conditions and the weight coefficients of each of the working conditions includes: obtaining a preset calculation formula; calculating a comprehensive score based on the preset calculation formula, the vibration isolation performance scoring grades under each of the working conditions, and the weight coefficients of each of the working conditions.

[0085] Exemplarily, for example, the comprehensive score calculation formula is: Comprehensive score = (idle speed working condition score × 0.2) + (smooth asphalt road working condition score × 0.3) + (general road working condition score × 0.2) + (pulse road working condition score × 0.15) + (braking working condition score × 0.15).

[0086] Substitute the scoring grades of each working condition into the comprehensive score calculation formula to obtain the final comprehensive score. For example, the scoring grade of the idle speed working condition is 3, the scoring grade of the smooth asphalt road working condition is 5, the scoring grade of the general road working condition is 2, the scoring grade of the pulse road working condition is 3, and the scoring grade of the braking working condition is 3. Multiply the scoring grades of each working condition by the corresponding weight coefficients, and then sum them to obtain the comprehensive score. The comprehensive score = (3×0.2) + (5×0.3) + (2×0.2) + (3×0.1) + (3×0.1) = 3.1.

[0087] In this embodiment, by scoring the vibration isolation rates in the X / Y / Z directions under each of the working conditions based on the preset vibration isolation rate scoring grade table, the vibration isolation performance scoring grades of the vibration isolation rates in the X / Y / Z directions under each of the working conditions are determined; according to the vibration isolation performance scoring grades under each of the working conditions and the weight coefficients of each of the working conditions, a comprehensive score is calculated; based on the comprehensive score, the vibration isolation performance of the body mounts is evaluated, solving the technical problem in the related art that the performance of the body mounts cannot be comprehensively evaluated. The method for comprehensively evaluating the vibration isolation performance of the body mounts in this embodiment can evaluate the vibration isolation performance of the body mounts from multiple aspects.

[0088] In a second aspect, the embodiments of the present application further provide an evaluation device for the vibration isolation performance of body mounts.

[0089] In one embodiment, referring to Figure 3 , Figure 3 is a schematic diagram of the functional modules of an embodiment of the evaluation device for the vibration isolation performance of body mounts in the present application. As Figure 3 shown, the evaluation device for the vibration isolation performance of body mounts includes:

[0090] A test module 01, configured to test the vehicle under each working condition, and obtain the vibration data in the X / Y / Z directions at the lower frame end and the vibration data in the X / Y / Z directions at the body end in the vehicle under each of the working conditions;

[0091] A first calculation module 02, configured to analyze the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the body end under each of the working conditions, and calculate the target vibration acceleration in the X / Y / Z directions at the frame end and the target vibration acceleration in the X / Y / Z directions at the body end under each of the working conditions;

[0092] A second calculation module 03, configured to calculate the vibration isolation rates in the X / Y / Z directions under each of the working conditions based on the target vibration acceleration in the X / Y / Z directions at the frame end, the target vibration acceleration in the X / Y / Z directions at the body end, and the preset vibration isolation rate calculation formula under each of the working conditions;

[0093] An evaluation module 04, configured to evaluate the vibration isolation performance of the vehicle body mounts based on a preset scoring strategy and the vibration isolation rates in the X / Y / Z directions under each of the working conditions.

[0094] Further, in one embodiment, the test module 01 is further configured to:

[0095] If the working condition is a smooth asphalt road condition, the vehicle to be tested is tested on a smooth and straight asphalt road surface with a preset length at a first preset vehicle speed to obtain the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end of the vehicle to be tested, wherein the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end of the vehicle to be tested are at least one group;

[0096] If the working condition is a pulse road condition, the vehicle to be tested is tested on a pulse road surface with a preset length at a second preset vehicle speed to obtain the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end of the vehicle to be tested, wherein the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end of the vehicle to be tested are at least one group.

[0097] Further, in one embodiment, the first calculation module 02 is further configured to:

[0098] If the obtained vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end belong to the idle speed, smooth asphalt road, and general road conditions, they are analyzed by Fourier transform technology to obtain the frequency-domain vibration data in the X / Y / Z directions at the frame end and the frequency-domain vibration data in the X / Y / Z directions at the vehicle body end;

[0099] Based on a preset frequency range, the frequency-domain vibration data in the X / Y / Z directions at the frame end and the frequency-domain vibration data in the X / Y / Z directions at the vehicle body end are calculated to obtain corresponding effective values, and the effective values are used as the target vibration accelerations;

[0100] If the obtained vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end belong to the pulse road and braking conditions, the time-domain vibration data in the X / Y / Z directions at the frame end and the time-domain vibration data in the X / Y / Z directions at the vehicle body end are calculated based on a preset frequency range to obtain corresponding peak-peak values, and the peak-peak values are used as the target vibration accelerations

[0101] Further, in one embodiment, the second calculation module 03 is further configured to:

[0102] The preset scoring strategy includes a preset vibration isolation rate scoring grade table and the weight coefficients of each working condition;

[0103] Based on a preset vibration isolation rate scoring grade table, score the vibration isolation rates in the X / Y / Z directions under each of the working conditions to determine the vibration isolation performance scoring grades of the vibration isolation rates in the X / Y / Z directions under each of the working conditions;

[0104] Calculate a comprehensive score according to the vibration isolation performance scoring grades under each of the working conditions and the weight coefficients of each of the working conditions;

[0105] Evaluate the vibration isolation performance of the vehicle body mounts based on the comprehensive score.

[0106] Furthermore, in one embodiment, the evaluation module 04 is further configured to:

[0107] The preset scoring strategy includes a preset vibration isolation rate scoring grade table and the weight coefficients of each working condition;

[0108] Based on a preset vibration isolation rate scoring grade table, score the vibration isolation rates in the X / Y / Z directions under each of the working conditions to determine the vibration isolation performance scoring grades of the vibration isolation rates in the X / Y / Z directions under each of the working conditions;

[0109] Calculate a comprehensive score according to the vibration isolation performance scoring grades under each of the working conditions and the weight coefficients of each of the working conditions;

[0110] Evaluate the vibration isolation performance of the vehicle body mounts based on the comprehensive score.

[0111] Among them, the functions of each module in the above vehicle body mount vibration isolation performance evaluation device correspond to the steps in the above vehicle body mount vibration isolation performance evaluation method embodiment, and their functions and implementation processes will not be elaborated here one by one.

[0112] In a third aspect, an embodiment of the present application provides an evaluation device for the vibration isolation performance of vehicle body mounts. The evaluation device for the vibration isolation performance of vehicle body mounts can be a device with data processing functions such as a personal computer (PC), a laptop computer, a server, etc.

[0113] Refer to Figure 4 , Figure 4 This is a schematic hardware structure diagram of the evaluation device for the vibration isolation performance of vehicle body mounts involved in the embodiment of the present application. In the embodiment of the present application, the evaluation device for the vibration isolation performance of vehicle body mounts may include a processor, a memory, a communication interface, and a communication bus.

[0114] Among them, the communication bus can be of any type and is used to interconnect the processor, the memory, and the communication interface.

[0115] The communication interface includes input / output (I / O) interfaces, physical interfaces, and logical interfaces, etc., which are used to implement the interconnection of components inside the evaluation device for the body mount vibration isolation performance, as well as the interfaces for implementing the interconnection between the evaluation device for the body mount vibration isolation performance and other devices (such as other computing devices or user devices). The physical interface can be an Ethernet interface, an optical fiber interface, an ATM interface, etc.; the user device can be a display, a keyboard, etc.

[0116] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical memory, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.

[0117] The processor can be a general-purpose processor, and the general-purpose processor can call the evaluation program for the body mount vibration isolation performance stored in the memory and execute the evaluation method for the body mount vibration isolation performance provided by the embodiments of the present application. For example, the general-purpose processor can be a central processing unit (CPU). Among them, the method executed when the evaluation program for the body mount vibration isolation performance is called can refer to the various embodiments of the evaluation method for the body mount vibration isolation performance of the present application, which will not be elaborated here.

[0118] Those skilled in the art can understand that Figure 4 the hardware structure shown in does not constitute a limitation to the present application, and it may include more or fewer components than shown in the figure, or combine some components, or have different component arrangements.

[0119] In a fourth aspect, the embodiments of the present application further provide a computer-readable storage medium.

[0120] The evaluation program for the body mount vibration isolation performance is stored on the computer-readable storage medium of the present application. When the evaluation program for the body mount vibration isolation performance is executed by a processor, the steps of the evaluation method for the body mount vibration isolation performance as described above are implemented.

[0121] Among them, the method implemented when the evaluation program for the body mount vibration isolation performance is executed can refer to the various embodiments of the evaluation method for the body mount vibration isolation performance of the present application, which will not be elaborated here.

[0122] It should be noted that the serial numbers of the embodiments of the present application above are only for description and do not represent the superiority or inferiority of the embodiments.

[0123] The terms "including" and "having" and any variations thereof in the description of the specification, claims and drawings of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices. The descriptions with terms such as "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit that "first", "second" and "third" are of different types.

[0124] In the description of the embodiments of the present application, words such as "exemplary", "for example" or "for illustration" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary", "for example" or "for illustration" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary", "for example" or "for illustration" is intended to present relevant concepts in a specific manner.

[0125] In the description of the embodiments of the present application, unless otherwise specified, " / " means "or". For example, A / B may represent A or B; "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality of" means two or more than two.

[0126] In some processes described in the embodiments of the present application, there are multiple operations or steps that appear in a specific order. However, it should be understood that these operations or steps may not be executed in the order in which they appear in the embodiments of the present application or may be executed in parallel. The serial numbers of the operations are only used to distinguish different operations, and the serial numbers themselves do not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed in order or in parallel, and these operations or steps may be combined.

[0127] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disc) as described above and includes several instructions for causing a terminal device to execute the methods described in various embodiments of the present application.

[0128] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. An evaluation method for the vibration isolation performance of a vehicle body mount, characterized in that, The evaluation method for the vibration isolation performance of the vehicle body mounts includes: Testing the vehicle under various working conditions to obtain the vibration data in the X / Y / Z directions at the lower frame end and the vibration data in the X / Y / Z directions at the vehicle body end of the vehicle under each of the working conditions; Analyzing the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end under each of the working conditions, and calculating the target vibration acceleration in the X / Y / Z directions at the frame end and the target vibration acceleration in the X / Y / Z directions at the vehicle body end under each of the working conditions; Based on the target vibration acceleration in the X / Y / Z directions at the frame end, the target vibration acceleration in the X / Y / Z directions at the vehicle body end under each of the working conditions, and the preset vibration isolation rate calculation formula, calculating the vibration isolation rate in the X / Y / Z directions under each of the working conditions; Evaluating the vibration isolation performance of the vehicle body mounts based on the preset scoring strategy and the vibration isolation rate in the X / Y / Z directions under each of the working conditions.

2. The evaluation method for the vibration isolation performance of the vehicle body mount according to claim 1, wherein The evaluating the vibration isolation performance of the vehicle body mounts based on the preset scoring strategy and the vibration isolation rate in the X / Y / Z directions under each of the working conditions includes: The preset scoring strategy includes a preset vibration isolation rate scoring grade table and the weight coefficients of each working condition; Scoring the vibration isolation rate in the X / Y / Z directions under each of the working conditions based on the preset vibration isolation rate scoring grade table to determine the vibration isolation performance scoring grade of the vibration isolation rate in the X / Y / Z directions under each of the working conditions; Calculating the comprehensive score according to the vibration isolation performance scoring grade under each of the working conditions and the weight coefficients of each of the working conditions; Evaluating the vibration isolation performance of the vehicle body mounts based on the comprehensive score.

3. The evaluation method for the vibration isolation performance of the vehicle body mount according to claim 2, characterized in that The calculating the comprehensive score according to the vibration isolation performance scoring grade under each of the working conditions and the weight coefficients of each of the working conditions includes: Obtaining the preset calculation formula; Calculating the comprehensive score based on the preset calculation formula, the vibration isolation performance scoring grade under each of the working conditions, and the weight coefficients of each of the working conditions.

4. The evaluation method for the vibration isolation performance of the vehicle body mount according to claim 1, wherein The working conditions include idle speed, smooth asphalt road and general road working conditions; the analyzing the vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end under each of the working conditions, and calculating the target vibration acceleration in the X / Y / Z directions at the frame end and the target vibration acceleration in the X / Y / Z directions at the vehicle body end under each of the working conditions includes: If the obtained vibration data in the X / Y / Z directions at the frame end and the vibration data in the X / Y / Z directions at the vehicle body end belong to the idle speed, smooth asphalt road and general road working conditions, then analyzing through the Fourier transform technology to obtain the frequency-domain vibration data in the X / Y / Z directions at the frame end and the frequency-domain vibration data in the X / Y / Z directions at the vehicle body end; Calculating the corresponding effective value based on the preset frequency range for the frequency-domain vibration data in the X / Y / Z directions at the frame end and the frequency-domain vibration data in the X / Y / Z directions at the vehicle body end, and taking the effective value as the target vibration acceleration.

5. The evaluation method for the vibration isolation performance of the vehicle body mount according to claim 1, characterized in that The working conditions include analyzing the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the body end under each of the working conditions, and calculating the target vibration accelerations in the X / Y / Z directions of the frame end and the target vibration accelerations in the X / Y / Z directions of the body end under each of the working conditions, including: If the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the body end obtained are under a pulse road and a braking condition, calculate the time-domain vibration data in the X / Y / Z directions of the frame end and the time-domain vibration data in the X / Y / Z directions of the body end based on a preset frequency range to obtain corresponding peak-peak values, and use the peak-peak values as the target vibration accelerations.

6. The evaluation method for the vibration isolation performance of the vehicle body mount as described in claim 1, characterized in that, Testing the vehicle to be tested under each working condition and obtaining the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the body end in the vehicle to be tested, including: If the working condition is a smooth asphalt road condition, test the vehicle to be tested on a smooth and straight asphalt road surface with a preset length at a first preset vehicle speed to obtain the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the body end in the vehicle to be tested, where the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the body end in the vehicle to be tested are at least one group.

7. The evaluation method for the vibration isolation performance of the vehicle body mount according to claim 1, characterized in that, Testing the vehicle to be tested under each working condition and obtaining the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the body end in the vehicle to be tested, including: If the working condition is a pulse road condition, test the vehicle to be tested on a pulse road surface with a preset length at a second preset vehicle speed to obtain the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the body end in the vehicle to be tested, where the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the body end in the vehicle to be tested are at least one group.

8. An evaluation device for the vibration isolation performance of a vehicle body mount, characterized in that, The evaluation device for the vibration isolation performance of the body mounts includes: A test module for testing the vehicle under each working condition and obtaining the vibration data in the X / Y / Z directions of the lower frame end and the vibration data in the X / Y / Z directions of the body end in the vehicle under each of the working conditions; A first calculation module for analyzing the vibration data in the X / Y / Z directions of the frame end and the vibration data in the X / Y / Z directions of the body end under each of the working conditions and calculating the target vibration accelerations in the X / Y / Z directions of the frame end and the target vibration accelerations in the X / Y / Z directions of the body end under each of the working conditions; A second calculation module for calculating the vibration isolation rates in the X / Y / Z directions under each of the working conditions based on the target vibration accelerations in the X / Y / Z directions of the frame end, the target vibration accelerations in the X / Y / Z directions of the body end under each of the working conditions, and a preset vibration isolation rate calculation formula; An evaluation module for evaluating the vibration isolation performance of the body mounts based on a preset scoring strategy and the vibration isolation rates in the X / Y / Z directions under each of the working conditions.

9. An evaluation device for the vibration isolation performance of a vehicle body mount, characterized in that, The evaluation device for the vibration isolation performance of the vehicle body mounts includes a processor, a memory, and an evaluation program for the vibration isolation performance of the vehicle body mounts stored on the memory and executable by the processor. When the evaluation program for the vibration isolation performance of the vehicle body mounts is executed by the processor, the steps of the evaluation method for the vibration isolation performance of the vehicle body mounts as described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium, characterized in that, An evaluation program for the vibration isolation performance of the vehicle body mounts is stored on the computer-readable storage medium. When the evaluation program for the vibration isolation performance of the vehicle body mounts is executed by the processor, the steps of the evaluation method for the vibration isolation performance of the vehicle body mounts as described in any one of claims 1 to 7 are implemented.

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