Simulation analysis method and device of vibration noise, electronic equipment and storage medium

Abstract

The invention relates to the technical field of testing, in particular to a vibration noise simulation analysis method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a product design standard and rotation characteristics of a test rotating part; according to a product design standard, determining the maximum limit value of the unbalanced mass of the test rotating member in the design process, and according to the maximum limit value of the unbalanced mass and the rotation characteristics, generating an excitation characteristic curve; and inputting the excitation characteristic curve into simulation software to obtain a simulation result, and optimizing design parameters of the test rotating member according to the simulation result. Therefore, the problems of complicated operation, high cost and the like when a test is carried out on a real vehicle in related technologies are solved.

Description

Technical Field

[0001] The present application relates to the field of testing technology, and in particular to a vibration noise simulation analysis method, device, electronic equipment and storage medium. Background Art

[0002] With the development of the global economy and the advancement of technology, consumers have increasingly higher requirements for the comfort of automotive products. The vibration and noise levels in the car affect the user's riding experience. The vibration and noise in the car mainly come from two aspects: one is the random excitation source, such as uneven road surface and air resistance; the other is the regular excitation source, such as the engine, cooling fan and other rotating parts.

[0003] In the related art, the test is generally carried out on the actual vehicle and the design and installation of the rotating parts are adjusted according to the results. This method is not only time-consuming and laborious, but also difficult to predict all possible situations. In particular, for different models and configurations, a large number of repeated tests are required to achieve the optimization effect. In addition, in the actual vehicle use environment, it is difficult to accurately control the experimental conditions, resulting in less than ideal test results. Summary of the invention

[0004] The present application provides a vibration noise simulation analysis method, device, electronic device and storage medium to solve the problems of complex operation and high cost in the related art when testing on a real vehicle.

[0005] The first aspect of the present application provides a vibration noise simulation analysis method, comprising the following steps: obtaining the product design standard and rotation characteristics of a test rotating part; determining the maximum limit of the unbalanced mass of the test rotating part during the design process according to the product design standard, and generating an excitation characteristic curve according to the maximum limit of the unbalanced mass and the rotation characteristics; inputting the excitation characteristic curve into simulation software to obtain simulation results, and optimizing the design parameters of the test rotating part according to the simulation results.

[0006] Optionally, the rotation characteristics include but are not limited to a speed range and a rotation radius, and an excitation characteristic curve is generated based on the maximum limit of the unbalanced mass and the rotation characteristics, including: performing frequency domain transformation on the speed range of the test rotating part to generate a frequency range; calculating the excitation force generated by the movement of the unbalanced mass of the test rotating part, and decomposing the excitation force into two directions within the plane of rotational motion; generating an excitation characteristic curve based on the maximum limit of the unbalanced mass, the frequency range, the excitation force and the phase difference in the two directions within the rotation plane.

[0007] Optionally, before inputting the excitation characteristic curve into the simulation software to obtain the simulation result, it also includes: determining the loading point, frequency band and response point of the test rotating part; generating simulation conditions based on the loading point, frequency band and response point of the test rotating part.

[0008] Optionally, the excitation characteristic curve is input into the simulation software to obtain the simulation result, including: under simulation conditions, the excitation characteristic curve is input into the simulation software, and the product between the excitation force and the transfer function at different frequencies is calculated to generate the simulation result, wherein the simulation result represents the vibration noise level of the test rotating part.

[0009] Optionally, the unbalanced mass refers to uneven mass distribution of the test rotating member on the rotation plane.

[0010] The second aspect of the present application provides a vibration noise simulation analysis device, including: an acquisition module, used to obtain the product design standards and rotation characteristics of the test rotating parts; a determination module, used to determine the maximum limit of the unbalanced mass of the test rotating parts during the design process according to the product design standards, and generate an excitation characteristic curve according to the maximum limit of the unbalanced mass and the rotation characteristics; a simulation module, used to input the excitation characteristic curve into the simulation software to obtain the simulation results, and optimize the design parameters of the test rotating parts according to the simulation results.

[0011] Optionally, the rotation characteristics include but are not limited to a speed range and a rotation radius, and the determination module is further used to: perform frequency domain conversion on the speed range of the test rotating part to generate a frequency range; calculate the excitation force generated by the movement of the unbalanced mass of the test rotating part, and decompose the excitation force into two directions within the plane of rotational motion; generate an excitation characteristic curve based on the maximum limit of the unbalanced mass, the frequency range, the excitation force and the phase difference in the two directions within the rotation plane.

[0012] Optionally, the simulation and analysis device for vibration noise also includes: a generation module, which is used to determine the loading point, frequency band and response point of the test rotating part before inputting the excitation characteristic curve into the simulation software to obtain the simulation result; and generate simulation conditions based on the loading point, frequency band and response point of the test rotating part.

[0013] Optionally, the simulation module is further used to: under simulation conditions, input the excitation characteristic curve into the simulation software, calculate the product between the excitation force and the transfer function at different frequencies to generate simulation results, wherein the simulation result represents the vibration noise level of the test rotating part.

[0014] Optionally, the unbalanced mass refers to uneven mass distribution of the test rotating member on the rotation plane.

[0015] A third aspect of the present application provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement a vibration noise simulation analysis method as described in the above embodiment.

[0016] A fourth aspect of the present application provides a computer-readable storage medium having a computer program or instruction stored thereon. When the computer program or instruction is executed, it is used to implement a vibration noise simulation analysis method as in the above-mentioned embodiment.

[0017] Therefore, this application has at least the following beneficial effects:

[0018] The embodiment of the present application obtains the product design standard and rotation characteristics of the test rotating part, determines the maximum limit of the unbalanced mass, and generates an excitation characteristic curve, and then uses simulation software for analysis to predict in advance the impact of the unbalanced mass of the rotating part on the vibration and noise in the vehicle, so as to take measures to optimize the design to improve the performance of the test rotating part. Therefore, with the help of simulation technology, a large number of physical experiments are reduced, time and material resources are saved, and the problems of complex operation and high cost in testing on real vehicles in related technologies are solved.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A flowchart of a vibration noise simulation analysis method provided according to an embodiment of the present application;

[0022] Figure 2 A flowchart of a simulation implementation function provided according to an embodiment of the present application;

[0023] Figure 3 This is an example diagram of simulation analysis of vibration noise provided according to one embodiment of the present application;

[0024] Figure 4 is a block diagram of a vibration noise simulation analysis device according to an embodiment of the present application;

[0025] Figure 5 Schematic diagram of the structure of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0027] The following describes the simulation analysis method, device, electronic device and storage medium of the vibration noise of the embodiment of the present application with reference to the accompanying drawings. In response to the problems mentioned in the above background technology, the present application provides a simulation analysis method of vibration noise. In this method, by obtaining the product design standards and rotation characteristics of the test rotating parts, the maximum limit of the unbalanced mass is determined, and an excitation characteristic curve is generated. Then, the simulation software is used for analysis to predict in advance the impact of the unbalanced mass of the rotating parts on the vibration noise in the vehicle, so as to take measures to optimize the design to improve the performance of the test rotating parts. Therefore, with the help of simulation technology, a large number of physical experiments are reduced, time and material resources are saved, and the problems of complex operation and high cost in testing on real vehicles in related technologies are solved.

[0028] Specifically, Figure 1 A schematic flow chart of a vibration noise simulation analysis method provided in an embodiment of the present application.

[0029] like Figure 1 As shown, the vibration noise simulation analysis method includes the following steps:

[0030] In step S101 , the product design standard and rotation characteristics of the test rotating part are obtained.

[0031] The test rotating part may be an engine, a cooling fan, a transmission shaft, etc., and the rotation characteristics include but are not limited to a speed range, a rotation radius, a rotation direction, and a plane, etc.

[0032] In step S102, the maximum limit of the unbalanced mass of the test rotating part during the design process is determined according to the product design standard, and an excitation characteristic curve is generated according to the maximum limit of the unbalanced mass and the rotation characteristic.

[0033] Among them, unbalanced mass refers to the uneven distribution of mass of the test rotating part on the rotating plane, which easily causes its center of mass to not coincide with the center of rotation. This asymmetry of mass will generate centrifugal force when the rotating part is running.

[0034] It is understandable that the embodiment of the present application can test the product design description of the rotating part, obtain the maximum limit of the unbalanced mass allowed to appear in the design process of the test rotating part, and generate an excitation characteristic curve based on this maximum limit and the rotation characteristic. This curve not only reflects the impact of the unbalanced mass on the test rotating part, but also shows the peak response at a specific frequency.

[0035] In one embodiment of the present application, an excitation characteristic curve is generated based on the maximum limit of the unbalanced mass and the rotational characteristics, including: performing frequency domain conversion on the speed range of the test rotating part to generate a frequency range; calculating the excitation force generated by the movement of the unbalanced mass of the test rotating part, and decomposing the excitation force into two directions within the plane of rotational motion; generating an excitation characteristic curve based on the maximum limit of the unbalanced mass, the frequency range, the excitation force and the phase difference between the two directions within the rotational plane.

[0036] Specifically, the embodiment of the present application can determine the minimum speed and maximum speed of the test rotating part when it is working normally in combination with the rotation characteristics of the test rotating part, convert the speed range into a frequency range, and calculate the excitation force generated by the motion of the dynamic unbalanced mass in the motion plane of the rotating part, decompose it into two directions in the motion plane, where the excitation force includes radial force and tangential force. The calculated excitation force (including radial force and tangential force) is combined with the frequency range, which means that for each frequency point, there is a corresponding excitation force.

[0037] Furthermore, the embodiment of the present application can use the formula edited by the plug-in to combine the unbalanced mass, rotation speed and rotation radius, and the phase difference of the decomposition direction in the rotation plane to form an excitation characteristic curve of the relationship between force and frequency in the simulation analysis. In the actual implementation process, the excitation characteristic curve can be quickly processed through the Excel plug-in to form a simulation standard format input, which is convenient and fast.

[0038] When generating the excitation characteristic curve, the embodiment of the present application takes into account the phase difference in different directions in the rotation plane. For a rotating part with multiple unbalanced mass points, the phase relationship between the points determines the final form of the composite excitation force. Therefore, it should be ensured that the phase information of all unbalanced mass points is correctly included in the calculation.

[0039] In step S103, the excitation characteristic curve is input into the simulation software to obtain the simulation result, and the design parameters of the test rotating part are optimized according to the simulation result.

[0040] It is understandable that the embodiment of the present application can input the excitation characteristic curve into the simulation software, effectively use the simulation technology to guide the design optimization of the rotating parts, thereby significantly improving the NVH performance of the product, while reducing the need for real vehicle tuning, shortening the development cycle, and reducing costs. This method not only helps to improve the ride comfort of the vehicle, but also prolongs the service life of mechanical parts and reduces noise levels.

[0041] In one embodiment of the present application, before inputting the excitation characteristic curve into the simulation software to obtain the simulation results, it also includes: determining the loading point, frequency band and response point of the test rotating part; generating simulation conditions based on the loading point, frequency band and response point of the test rotating part to ensure that the simulation analysis can accurately reflect the actual working conditions, thereby providing reliable data support for the optimization design.

[0042] Among them, the loading point is such as the center of mass or the rotational geometric center; the detection point is such as the driver's and rear passenger's ears in the car's acoustic cavity, the 12 o'clock and 3 o'clock of the steering wheel, the seat installation point, etc. The frequency range is equivalent to the frequency range corresponding to the rotational mechanical speed range. In addition, the embodiment of the present application also needs to design the contribution analysis required for the later diagnosis.

[0043] Furthermore, the excitation characteristic curve is input into the simulation software to obtain a simulation result, including: under simulation conditions, the excitation characteristic curve is input into the simulation software, and the product between the excitation force and the transfer function at different frequencies is calculated to generate a simulation result, wherein the simulation result represents the vibration noise level of the test rotating part.

[0044] It is understandable that the embodiments of the present application can establish a corresponding transfer function based on the rotation characteristics of the test rotating member and the actual physical characteristics of its supporting structure. The transfer function describes the response characteristics to the input excitation, and is usually expressed as the proportional relationship between the output vibration or noise level and the input exciting force. In the actual implementation process, the embodiments of the present application can determine the transfer function through experimental measurement, theoretical analysis or finite element analysis.

[0045] The embodiment of the present application calculates the product between the excitation force corresponding to each frequency point and the transfer function to obtain the response amplitude at the frequency, which can reflect the actual response to the exciting force generated by the unbalanced mass at a specific frequency. The response amplitudes at all frequency points are integrated to form a complete simulation result, such as a frequency response function diagram or a time history diagram, which intuitively displays the vibration and noise level of the test rotating part in the entire frequency range. Evaluate whether the current design meets the expected goals based on the simulation results. If it does not meet the ideal standards, consider adjusting the design parameters, such as reducing the unbalanced mass, changing the speed range, increasing the rigidity of the support structure, or introducing vibration reduction measures. Run the simulation again according to the optimized design parameters to verify the improvement effect until the expected goal is achieved, thereby reducing the cost and time of actual vehicle testing. The expected goal can be set according to the actual situation without specific limitation.

[0046] It should be noted that the calculation process of the embodiment of the present application can be numerically calculated through a program plug-in to improve efficiency.

[0047] Combine the following Figure 2 and Figure 3The simulation analysis method of the vibration noise of the embodiment of the present application is described in detail. Figure 2 As shown in the figure, 1-3 are the pre-processing of simulation analysis, involving the input of analysis and the generation of header files, which can be used as the pre-processing of the whole vehicle vibration and noise simulation analysis of common rotating parts of the vehicle body, such as cooling fans, air conditioning compressors, tires and drive / transmission shafts, etc. The solution process and method of 4 can be submitted through conventional finite element calculations, or through program plug-ins to solve the files implemented in the first three places; 5-6 are the general simulation analysis post-processing stage to view the analysis results.

[0048] Figure 3 For detailed simulation analysis process operation steps, clarify the source of unbalanced mass input, obtain the maximum limit of unbalanced mass of rotating parts in the design process according to product design instructions; combine the product rotating machinery speed operation range and perform frequency domain conversion; combine the two to generate an excitation characteristic curve, which requires theoretical calculation. Use the formula edited by the plug-in to combine the unbalanced mass, speed and rotation radius, and the phase difference of the decomposition direction in the rotation plane to form a curve of the relationship between force and frequency in the simulation analysis; loading and response design mainly includes loading points, such as the center of mass or the geometric center of rotation; detection points such as the driver's and rear passenger's ears in the car's sound cavity, 12 o'clock and 3 o'clock on the steering wheel, seat installation points, etc., and secondly, the frequency range under analysis is equivalent to the frequency range corresponding to the rotating machinery speed range; third, the response design also includes the contribution analysis required for later diagnosis, etc. The operation here is generated through another plug-in, and the content can be edited, and the pre-processing steps are completed.

[0049] After the pre-processing is completed, the generated file can be normally calculated by the finite element calculation software, or numerical calculation can be performed using the external function input of the completed analysis; the calculation result can either end when it meets the requirements or return to continue the optimization calculation.

[0050] In addition, in order to achieve the standard design of the unbalanced mass of the product (test rotating parts) and reasonable body transfer characteristics, the simulation process analysis can clarify the response obtained when the standard parts are input, which can be used as one of the later comfort goals; when the unbalanced mass fluctuates within the linear range of the body system, the corresponding response of the same system will be different, resulting in exceeding the standard, and the problem can be quickly locked. In the process of solving real vehicle problems, the product standards can be improved and the input can be reduced; secondly, when the unbalanced mass input is stable, different levels of body systems can locate different target needs and rationalize the definition of comfort.

[0051] According to the vibration and noise simulation analysis method proposed in the embodiment of the present application, by obtaining the product design standards and rotation characteristics of the test rotating parts, determining the maximum limit of the unbalanced mass, and generating an excitation characteristic curve, and then using simulation software for analysis, it is possible to predict in advance the impact of the unbalanced mass of the rotating parts on the vibration and noise inside the vehicle, so as to take measures to optimize the design to improve the performance of the test rotating parts. As a result, with the help of simulation technology, a large number of physical experiments are reduced, time and material resources are saved, and the problems of complex operation and high cost in testing on real vehicles in related technologies are solved.

[0052] Next, the vibration noise simulation analysis device proposed in the embodiment of the present application is described with reference to the accompanying drawings.

[0053] Figure 4 It is a block diagram of a vibration noise simulation analysis device according to an embodiment of the present application.

[0054] like Figure 4 As shown, the vibration noise simulation analysis device 10 includes: an acquisition module 100 , a determination module 200 and a simulation module 300 .

[0055] Among them, the acquisition module 100 is used to obtain the product design standards and rotation characteristics of the test rotating parts; the determination module 200 is used to determine the maximum limit of the unbalanced mass of the test rotating parts during the design process according to the product design standards, and generate an excitation characteristic curve according to the maximum limit of the unbalanced mass and the rotation characteristics; the simulation module 300 is used to input the excitation characteristic curve into the simulation software to obtain the simulation results, and optimize the design parameters of the test rotating parts according to the simulation results.

[0056] In one embodiment of the present application, the rotation characteristics include but are not limited to the speed range and the rotation radius, and the determination module 200 is further used to: perform frequency domain conversion on the speed range of the test rotating part to generate a frequency range; calculate the excitation force generated by the unbalanced mass movement of the test rotating part, and decompose the excitation force into two directions within the rotational motion plane; generate an excitation characteristic curve based on the maximum limit of the unbalanced mass, the frequency range, the excitation force and the phase difference in the two directions within the rotation plane.

[0057] In one embodiment of the present application, the vibration noise simulation analysis device 10 also includes: a generation module, which is used to determine the loading point, frequency band and response point of the test rotating part before inputting the excitation characteristic curve into the simulation software to obtain the simulation result; and generate simulation conditions based on the loading point, frequency band and response point of the test rotating part.

[0058] In one embodiment of the present application, the simulation module 300 is further used to: under simulation conditions, input the excitation characteristic curve into the simulation software, calculate the product between the excitation force and the transfer function at different frequencies to generate a simulation result, wherein the simulation result represents the vibration noise level of the test rotating part.

[0059] In one embodiment of the present application, the unbalanced mass refers to the uneven mass distribution of the test rotating member on the rotation plane.

[0060] It should be noted that the above explanation of the embodiment of the vibration noise simulation analysis method is also applicable to the vibration noise simulation analysis device of this embodiment, which will not be repeated here.

[0061] According to the vibration and noise simulation analysis device proposed in the embodiment of the present application, by obtaining the product design standards and rotation characteristics of the test rotating parts, determining the maximum limit of the unbalanced mass, and generating an excitation characteristic curve, and then using simulation software for analysis, it is possible to predict in advance the impact of the unbalanced mass of the rotating parts on the vibration and noise in the vehicle, so as to take measures to optimize the design to improve the performance of the test rotating parts. As a result, with the help of simulation technology, a large number of physical experiments are reduced, time and material resources are saved, and the problems of complex operation and high cost in testing on real vehicles in related technologies are solved.

[0062] Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device may include:

[0063] A memory 501 , a processor 502 , and a computer program stored in the memory 501 and executable on the processor 502 .

[0064] When the processor 502 executes the program, the simulation analysis of the vibration noise provided in the above embodiment is implemented.

[0065] Furthermore, the electronic device further comprises:

[0066] The communication interface 503 is used for communication between the memory 501 and the processor 502 .

[0067] The memory 501 is used to store computer programs that can be executed on the processor 502 .

[0068] The memory 501 may include a high-speed RAM (Random Access Memory) memory, and may also include a non-volatile memory, such as at least one disk memory.

[0069] If the memory 501, the processor 502 and the communication interface 503 are implemented independently, the communication interface 503, the memory 501 and the processor 502 can be connected to each other through a bus and communicate with each other. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0070] Optionally, in a specific implementation, if the memory 501, the processor 502 and the communication interface 503 are integrated on a chip, the memory 501, the processor 502 and the communication interface 503 can communicate with each other through an internal interface.

[0071] The processor 502 may be a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application.

[0072] The embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the above vibration noise simulation analysis method is implemented.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0074] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0075] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0076] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array, a field programmable gate array, etc.

[0077] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0078] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A vibration noise simulation analysis method, characterized in that: The following steps are involved: Obtain product design standards and rotational characteristics of test rotating parts; Determine the maximum limit of the unbalanced mass of the test rotating part during the design process according to the product design standard, and generate an excitation characteristic curve according to the maximum limit of the unbalanced mass and the rotation characteristic; The excitation characteristic curve is input into simulation software to obtain simulation results, and the design parameters of the test rotating part are optimized according to the simulation results.

2. The vibration noise simulation analysis method according to claim 1, characterized in that: The rotation characteristics include but are not limited to a speed range and a rotation radius, and the generating of an excitation characteristic curve according to the maximum limit of the unbalanced mass and the rotation characteristics includes: Performing frequency domain conversion on the rotation speed range of the test rotating part to generate a frequency range; Calculating the excitation force of the test rotating member generated by the motion of the unbalanced mass, and decomposing the excitation force into two directions in the rotational motion plane; The excitation characteristic curve is generated according to the maximum limit value of the unbalanced mass, the frequency interval, the excitation force and the phase difference in two directions in the rotation plane.

3. The vibration noise simulation analysis method according to claim 1, characterized in that: Before inputting the excitation characteristic curve into the simulation software to obtain the simulation result, the method further includes: Determining the loading point, frequency range and response point of the test rotating member; A simulation condition is generated based on the loading point of the test rotating member, the frequency band and the response point.

4. The vibration noise simulation analysis method according to claim 3, characterized in that: The step of inputting the excitation characteristic curve into simulation software to obtain a simulation result comprises: Under the simulation conditions, the excitation characteristic curve is input into the simulation software, and the product between the excitation force and the transfer function at different frequencies is calculated to generate the simulation result, wherein the simulation result represents the vibration noise level of the test rotating part.

5. The vibration noise simulation analysis method according to any one of claims 1 to 4, characterized in that: The unbalanced mass refers to the uneven mass distribution of the test rotating member on the rotation plane.

6. A vibration noise simulation analysis device, characterized in that: include: An acquisition module, used for acquiring product design standards and rotation characteristics of a test rotating part; A determination module, configured to determine a maximum limit of an unbalanced mass of the test rotating part during a design process according to the product design standard, and to generate an excitation characteristic curve according to the maximum limit of the unbalanced mass and the rotation characteristic; The simulation module is used to input the excitation characteristic curve into the simulation software to obtain the simulation result, and optimize the design parameters of the test rotating part according to the simulation result.

7. The vibration noise simulation analysis device according to claim 6, characterized in that: The rotation characteristics include but are not limited to a rotation speed range and a rotation radius. The determination module is further used to: Performing frequency domain conversion on the rotation speed range of the test rotating part to generate a frequency range; Calculating the excitation force of the test rotating member generated by the motion of the unbalanced mass, and decomposing the excitation force into two directions in the rotational motion plane; An excitation characteristic curve is generated according to the maximum limit value of the unbalanced mass, the frequency range, the excitation force and the phase difference in two directions in the rotation plane.

8. The vibration noise simulation analysis device according to claim 6, characterized in that: Also includes: A generating module, used for determining the loading point, frequency range and response point of the test rotating member before inputting the excitation characteristic curve into the simulation software to obtain the simulation result; A simulation condition is generated based on the loading point of the test rotating member, the frequency band and the response point.

9. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the vibration noise simulation analysis method according to any one of claims 1 to 5.

10. A computer-readable storage medium having a computer program or instruction stored thereon, characterized in that: When the computer program or instruction is executed, the vibration noise simulation analysis method according to any one of claims 1 to 5 is implemented.

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