Sound insulation volume calculation method, device, equipment, storage medium and computer product

Abstract

The application relates to the technical field of vehicle sound insulation, and discloses a sound insulation volume calculation method, device, equipment, storage medium and computer product, which comprises the following steps: acquiring a first area density value, a first thickness value and a first actual sound insulation volume of a first sample plate of the same sound insulation material and a second area density value and a second thickness value of a second sample plate; acquiring a first mapping relationship according to the first area density value, the first thickness value, the first actual sound insulation volume, the second area density value and the second thickness value, and calculating a first theoretical sound insulation volume of the second sample plate according to the first mapping relationship; detecting a second actual sound insulation volume of the second sample plate; and when the absolute value of the difference between the first theoretical sound insulation volume and the second actual sound insulation volume does not reach a preset error threshold, calculating the sound insulation volume of the same sound insulation material by using the first mapping relationship. The application realizes accurate prediction of sound insulation performance and has the advantages of high precision, high efficiency and low investment.

Description

Technical Field

[0001] This application relates to the field of vehicle sound insulation technology, and in particular to a sound insulation calculation method, device, equipment, storage medium, and computer product. Background Technology

[0002] With the development of the automotive industry, customers are demanding higher and higher acoustic comfort from cars, especially luxury cars, which often have higher requirements for interior quietness.

[0003] However, sound insulation design is a contradiction directly related to surface density, cost, and space requirements. Good sound insulation requires higher costs and greater surface density, which makes it particularly important to balance sound insulation performance, cost, surface density, and space when designing vehicles. Precise sound insulation design is a challenge in the industry, but it is a requirement for lean design to improve product competitiveness. To achieve precise sound insulation design, predicting the sound insulation volume of sound insulation materials is of paramount importance. Summary of the Invention

[0004] The purpose of this application is to provide a method, apparatus, device, storage medium, and computer product for calculating sound insulation, aiming to solve the technical problem of lacking a rapid method for calculating the sound insulation of sound insulation materials based on theory and experiment.

[0005] To achieve the above objectives, this application proposes a method for calculating sound insulation, the method comprising:

[0006] Obtain the first surface density value, first thickness value, and first actual sound insulation value of the first sample of similar sound insulation materials, and the second surface density value and second thickness value of the second sample;

[0007] A first mapping relationship is obtained based on the first surface density value, the first thickness value, the first actual sound insulation value, the second surface density value, and the second thickness value, and the first theoretical sound insulation value of the second template is calculated based on the first mapping relationship.

[0008] The second actual sound insulation volume of the second sample is detected. When the absolute value of the difference between the first theoretical sound insulation volume and the second actual sound insulation volume does not reach the preset error threshold, the sound insulation volume of similar sound insulation materials is calculated using the first mapping relationship.

[0009] In one embodiment, obtaining the first surface density value, first thickness value, and first actual sound insulation value of a first sample of similar sound insulation materials, and the second surface density value and second thickness value of a second sample, includes:

[0010] Obtain the measured surface density, measured thickness, and measured sound insulation of multiple samples of the same type of material;

[0011] The average value of the measured surface density, the measured thickness, and the measured sound insulation is taken as the first surface density, the first thickness, and the first actual sound insulation, respectively.

[0012] In one embodiment, obtaining a first mapping relationship based on the first areal density value, the first thickness value, the first actual sound insulation value, the second areal density value, and the second thickness value, and calculating the first theoretical sound insulation of the second template based on the first mapping relationship, includes:

[0013] Obtain the first coefficient in the law of surface density;

[0014] A first ratio is obtained based on the first areal density value and the second areal density value;

[0015] Take the first commonly used logarithm value of the first ratio, and obtain the first product based on the first commonly used logarithm value and the coefficient;

[0016] A second ratio is obtained based on the first thickness value and the second thickness value;

[0017] Take the second commonly used logarithm value of the second ratio, and obtain the second product based on the second commonly used logarithm value and the coefficient;

[0018] The first sum is obtained based on the first product and the second product;

[0019] The first theoretical insulation volume is obtained based on the first difference between the first actual insulation volume and the first sum.

[0020] In one embodiment, after the step of detecting the second actual sound insulation of the second sample, when the absolute value of the difference between the first theoretical sound insulation and the second actual sound insulation does not reach a preset error threshold, and calculating the sound insulation of similar sound insulation materials using the first mapping relationship, the method further includes:

[0021] Obtain the third actual sound insulation volume of the third sample of the same type of sound insulation material;

[0022] The third surface density value and the third thickness value are obtained based on the third actual sound insulation.

[0023] The model of the sound insulation board made of the same type of sound insulation material is adjusted according to the third surface density value and the third thickness value.

[0024] In one embodiment, obtaining the third surface density value and the third thickness value based on the third actual sound insulation includes:

[0025] When the third surface density value is determined, the third thickness value of the third sample is calculated based on the first mapping relationship, the third actual sound insulation, the second actual sound insulation, the second surface density value, and the second thickness value; or,

[0026] When the third thickness value is determined, the third surface density value of the third sample is calculated based on the first mapping relationship, the third actual sound insulation, the second actual sound insulation, the second surface density value, and the second thickness value.

[0027] In one embodiment, before the step of obtaining the first surface density value, first thickness value, and first actual sound insulation value of the first sample of similar sound insulation materials, and the second surface density value and second thickness value of the second sample, the method further includes:

[0028] Obtain the sound insulation volume of double-layer boards and single-layer boards of the same type of sound insulation material;

[0029] The sound insulation volume of the sound insulation component is obtained based on the second difference between the sound insulation volume of the double-layer board and the sound insulation volume of the single-layer board.

[0030] The difference in sound insulation performance between different models of sound insulation parts made of the same type of sound insulation material is obtained based on the sound insulation volume of the sound insulation parts.

[0031] Furthermore, to achieve the above objectives, this application also proposes a sound insulation calculation device, the device comprising:

[0032] The data acquisition module is used to acquire the first surface density value, first thickness value, and first actual sound insulation value of the first sample of similar sound insulation materials, and the second surface density value and second thickness value of the second sample.

[0033] The theoretical calculation module is used to obtain a first mapping relationship based on the first surface density value, the first thickness value, the first actual sound insulation value, the second surface density value, and the second thickness value, and to calculate the first theoretical sound insulation of the second template based on the first mapping relationship;

[0034] The error detection module is used to detect the second actual sound insulation volume of the second sample. When the absolute value of the difference between the first theoretical sound insulation volume and the second actual sound insulation volume does not reach the preset error threshold, the sound insulation volume of similar sound insulation materials is calculated using the first mapping relationship.

[0035] In addition, to achieve the above objectives, this application also proposes a sound insulation calculation device, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the sound insulation calculation method as described above.

[0036] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the sound insulation calculation method as described above.

[0037] In addition, to achieve the above objectives, this application also proposes a computer program product, which includes a computer program that, when executed by a processor, implements the sound insulation calculation method as described above.

[0038] This application proposes a method for calculating sound insulation, comprising: obtaining a first surface density value, a first thickness value, and a first actual sound insulation value of a first sample of similar sound insulation materials, and a second surface density value and a second thickness value of a second sample; obtaining a first mapping relationship based on the first surface density value, the first thickness value, the first actual sound insulation value, the second surface density value, and the second thickness value, and calculating a first theoretical sound insulation value of the second sample based on the first mapping relationship; detecting the second actual sound insulation value of the second sample, and when the absolute value of the difference between the first theoretical sound insulation value and the second actual sound insulation value does not reach a preset error threshold, using the first mapping relationship to calculate the sound insulation value of similar sound insulation materials. Based on the basic principles of sound insulation and combined with a small amount of test data, this application has developed a sound insulation estimation method that can be quickly applied to compare the sound insulation effects of different schemes, saving time in project development; simultaneously, based on the accurate results, the surface density, thickness, and other aspects of the sound insulation material can be optimized, saving costs. Attached Figure Description

[0039] Figure 1 This is a flowchart illustrating an embodiment of the sound insulation calculation method of this application.

[0040] Figure 2 This is a flowchart illustrating Embodiment 2 of the sound insulation calculation method of this application;

[0041] Figure 3 This is a schematic diagram of the first process for the third embodiment of the sound insulation calculation method of this application;

[0042] Figure 4 This is a schematic diagram of the second process provided in Embodiment 3 of the sound insulation calculation method of this application;

[0043] Figure 5 This is a schematic diagram of the module structure of the sound insulation calculation device according to an embodiment of this application;

[0044] Figure 6 This is a schematic diagram of the structure of the sound insulation calculation device in the hardware operating environment involved in the sound insulation calculation method in the embodiments of this application. Detailed Implementation

[0045] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0046] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0047] The main solution of this application embodiment is as follows: obtain the first surface density value, first thickness value, and first actual sound insulation value of a first sample of similar sound insulation materials, and the second surface density value and second thickness value of a second sample; obtain a first mapping relationship based on the first surface density value, first thickness value, first actual sound insulation value, second surface density value, and second thickness value, and calculate the first theoretical sound insulation value of the second sample based on the first mapping relationship; detect the second actual sound insulation value of the second sample, and when the absolute value of the difference between the first theoretical sound insulation value and the second actual sound insulation value does not reach a preset error threshold, use the first mapping relationship to calculate the sound insulation value of similar sound insulation materials.

[0048] Sound insulation design can be divided into single-layer and multi-layer sound insulation. Double-layer sound insulation is the most common type, widely used in the automotive industry because it achieves superior sound insulation effects compared to single-layer sound insulation. Although there are theoretical formulas for calculating the sound insulation volume of double-layer sound insulation materials, these formulas are mostly based on theoretical derivations of large flat plates, which differ from reality. Therefore, predicting the sound insulation volume of the sound insulation materials is crucial for accurate sound insulation design.

[0049] Based on the fundamental principles of sound insulation and combined with a small amount of test data, this application has developed a sound insulation estimation method that can be quickly applied to compare the sound insulation effects of different solutions, saving time in project development. At the same time, based on the accurate results, the surface density and thickness of sound insulation materials can be optimized, saving costs.

[0050] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or a sound insulation calculation device capable of performing the above functions. The following description uses a sound insulation calculation device as an example to illustrate this embodiment and the subsequent embodiments.

[0051] Based on this, the embodiments of this application provide a method for calculating sound insulation, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the sound insulation calculation method of this application.

[0052] In this embodiment, the sound insulation calculation method includes steps S10 to S30:

[0053] Step S10: Obtain the first surface density value, first thickness value, and first actual sound insulation value of the first sample of the same type of sound insulation material, and the second surface density value and second thickness value of the second sample.

[0054] It should be noted that the surface density value of sound insulation material refers to the ratio of the surface density of a single surface of the sound insulation panel to its area, usually expressed in kilograms per square meter (kg / m²). 2 The density is measured in units of 0.5 dB (dB). This parameter is one of the important indicators for evaluating the performance of sound insulation materials because, generally speaking, the higher the density of a material, the better its sound insulation effect. This is because the areal density law states that for every doubling of the areal density of a material, the theoretical sound insulation effect can increase by 6 dB. Estimating the sound insulation effect by the density of a material can be based on the "areal density law," meaning that the greater the areal density of a material, the better its sound insulation effect is generally. This is because heavier materials can more effectively block the propagation of sound waves. Therefore, when selecting sound insulation materials, the areal density and density of the material, as well as its sound insulation and sound absorption performance over a wide frequency range, should be considered. Furthermore, high-density sound insulation materials can also reduce the ability of sound waves to reflect, thereby reducing the bounce of sound waves in space. In practical applications, in addition to considering density, it is also necessary to comprehensively consider factors such as the thickness, structure, material composition, and surface treatment of the material to select suitable materials and improve sound insulation performance.

[0055] Step S20: Obtain a first mapping relationship based on the first surface density value, the first thickness value, the first actual sound insulation value, the second surface density value, and the second thickness value, and calculate the first theoretical sound insulation of the second template based on the first mapping relationship.

[0056] It should be understood that in acoustics, "mapping relationship" usually refers to the material's ability to transmit sound waves, and these properties can be predicted by the material's physical properties.

[0057] Step S30: Detect the second actual sound insulation of the second sample. When the absolute value of the difference between the first theoretical sound insulation and the second actual sound insulation does not reach the preset error threshold, use the first mapping relationship to calculate the sound insulation of similar sound insulation materials.

[0058] It should be noted that the preset error threshold is 0.5dB. When the absolute value of the difference between the first theoretical sound insulation volume and the second actual sound insulation volume does not reach 0.5dB, the sound insulation volume of the same type of sound insulation material is calculated using the first mapping relationship.

[0059] In this embodiment, the sound insulation calculation method includes: obtaining the first surface density value, first thickness value, and first actual sound insulation value of a first sample of similar sound insulation materials, and the second surface density value and second thickness value of a second sample; obtaining a first mapping relationship based on the first surface density value, first thickness value, first actual sound insulation value, second surface density value, and second thickness value, and calculating the first theoretical sound insulation value of the second sample based on the first mapping relationship; detecting the second actual sound insulation value of the second sample, and when the absolute value of the difference between the first theoretical sound insulation value and the second actual sound insulation value does not reach a preset error threshold, using the first mapping relationship to calculate the sound insulation value of similar sound insulation materials. Based on the basic principles of sound insulation and combined with a small amount of test data, this application has developed a sound insulation estimation method that can be quickly applied to compare the sound insulation effects of different schemes, saving time in project development; at the same time, based on the accurate results, the surface density, thickness, and other aspects of the sound insulation material can be optimized, saving costs.

[0060] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in the first embodiment described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 2 , Figure 2 This is a flowchart illustrating a second embodiment of the sound insulation calculation method of this application. In step S10, the sound insulation calculation method further includes:

[0061] Step S101: Obtain the measured surface density, measured thickness, and measured sound insulation of multiple samples of the same type of material.

[0062] It should be noted that three flat templates were made from the selected raw materials. The target areal density of the flat templates was m = 5 kg, and the target thickness was d = 30 mm. The areal density and thickness of the three flat templates were measured to obtain the average areal density and thickness, in order to reduce manufacturing and testing errors. The measured areal densities were m1, m2, and m3; the measured thicknesses were d1, d2, and d3.

[0063] Step S102: Take the average value of the measured surface density value, the measured thickness value and the measured sound insulation value as the first surface density value, the first thickness value and the first actual sound insulation value, respectively.

[0064] It should be understood that the actual average surface density of the sample is: m0 = (m1 + m2 + m3) / 3, and the actual average thickness is: d0 = (d1 + d2 + d3) / 3. The sound insulation tests were performed on the three flat sample plates sequentially, IL1, IL2, and IL3; therefore, the average sound insulation is: IL0 = (IL1 + IL2 + IL3) / 3.

[0065] In step S20, the sound insulation calculation method further includes:

[0066] Step S201: Obtain the first coefficient in the law of surface density.

[0067] It should be understood that the first coefficient is 20.

[0068] Step S202: Obtain a first ratio based on the first areal density value and the second areal density value;

[0069] Step S203: Take the first commonly used logarithm value of the first ratio, and obtain the first product based on the first commonly used logarithm value and the coefficient.

[0070] It should be noted that the first areal density value is m0, and the second areal density value is m x Then, take the first commonly used logarithm value of the first ratio, and obtain the first product based on the first commonly used logarithm value and the coefficient:

[0071]

[0072] Step S204: Obtain a second ratio based on the first thickness value and the second thickness value;

[0073] Step S205: Take the second commonly used logarithm value of the second ratio, and obtain the second product based on the second commonly used logarithm value and the coefficient.

[0074] It should be noted that the first areal density value is d0, and the second areal density value is d. x Then, take the second commonly used logarithm value of the second ratio, and obtain the second product based on the second commonly used logarithm value and the coefficient:

[0075]

[0076] Step S206: Obtain the first sum value based on the first product and the second product;

[0077] Step S207: Obtain the first theoretical insulation volume based on the first difference between the first actual insulation volume and the first sum value.

[0078] It should be noted that, based on formulas (1) and (2), formula (3) can be obtained. IL0, m0, and d0 are already obtained, and any m can be calculated. x and d x Sound insulation IL under the specified ratio x :

[0079]

[0080] In this embodiment, four different types of flat panel samples were fabricated for sound insulation testing, with three samples from each type being averaged. Flat panel sample A: surface density m A = 4.95kg, thickness d A =30mm; Flat template B: surface density m B = 2.84kg, thickness d B =30mm; Flat template C:m C = 2.61 kg, d C =20mm; Flat template D:m D =2.84kg, d D =10mm; the tested sound insulation was in the order of IL. A =24.31dB, IL B =19.61dB, IL C =14.95dB, IL D =9.9dB. Using flat sample A as the benchmark, the theoretical sound insulation of B, C, and D are calculated according to formula (3). The calculation results are shown in the table below:

[0081]

[0082] The comparison results in the table above show that the sound insulation calculated by the above method is very close to the actual test results of the sample, with an error of less than 0.5dB, which fully meets the engineering requirements. This demonstrates the scientific validity, reference value and practical application value of this method.

[0083] In this embodiment, a method for predicting the sound insulation volume of automotive acoustic sound insulation materials is established based on theoretical derivation and correction using test data. Specifically, by analogy calculations of sound insulation volume with different parameters, the basic principles of sound insulation design are obtained, namely, the sound insulation volume is related to the surface density of the sound insulation material and the thickness of the sound-absorbing layer. Combining the measured sound insulation volume of a flat sample, theoretical calculation formulas for sound insulation volume under different scheme ratios are obtained through analogy, which can be used for comparative calculations of measurement predictions for different design schemes. This also provides a theoretical basis for balancing surface density and thickness design under a defined sound insulation target. Based on the basic principles of sound insulation and combined with a small amount of test data, a sound insulation volume estimation method is developed, which can be quickly applied to compare the sound insulation effects of different schemes, saving time in project development. Simultaneously, based on the accurate results, the surface density and thickness of the sound insulation material can be optimized, saving costs. It has good reference value and can be widely applied in the design of automotive sound insulation parts.

[0084] Based on the first and / or second embodiments of this application, in the third embodiment of this application, the content that is the same as or similar to that in embodiments one and two above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 3 , Figure 3 This is a first flowchart illustrating the sound insulation calculation method according to Embodiment 3 of this application. In step S30, the sound insulation calculation method further includes:

[0085] Step S301: Obtain the third actual sound insulation volume of the third sample of the same type of sound insulation material;

[0086] Step S302: Obtain the third surface density value and the third thickness value based on the third actual sound insulation value;

[0087] Step S303: Adjust the model of the sound insulation board made of the same type of sound insulation material according to the third surface density value and the third thickness value.

[0088] It should be noted that, according to equation (3), once the sound insulation of one combination of surface density and thickness is known, the sound insulation of any other combination of surface density and thickness can theoretically be calculated. However, since the sound insulation theory formula is based on the theoretical derivation of a large flat plate, which differs from reality, and does not consider the effects of structural boundaries, damping, material composition, resonance, and coincidence effects, it is difficult to directly calculate the accurate sound insulation. The sound insulation of a certain surface density and thickness ratio can be experimentally measured, and based on this, the sound insulation of other ratios can be calculated by analogy using equation (3).

[0089] In step S30, the sound insulation calculation method further includes:

[0090] Step S304: When the third surface density value is determined, calculate the third thickness value of the third sample based on the first mapping relationship, the third actual sound insulation, the second actual sound insulation, the second surface density value, and the second thickness value;

[0091] Step S305: When the third thickness value is determined, calculate the third surface density value of the third sample based on the first mapping relationship, the third actual sound insulation, the second actual sound insulation, the second surface density value, and the second thickness value.

[0092] It should be understood that, based on the overall vehicle positive target decomposition, once the sound insulation target of a certain part is set, a balance can be made between surface density and thickness according to requirements such as space constraints and surface density requirements. That is, when either surface density or thickness is limited, the required value of the other variable can be calculated under the premise of meeting the sound insulation requirements, so as to obtain the optimal surface density or thickness design.

[0093] Please refer to Figure 3 , Figure 3 This is a second flowchart illustrating the sound insulation calculation method in Embodiment 3 of this application. Before step S10, the sound insulation calculation method further includes:

[0094] Step S103: Obtain the sound insulation volume of the double-layer board and the sound insulation volume of the single-layer board of the same type of sound insulation material;

[0095] Step S104: Obtain the sound insulation of the sound insulation component based on the second difference between the sound insulation of the double-layer board and the sound insulation of the single-layer board;

[0096] Step S105: Obtain the difference in sound insulation performance between different models of sound insulation parts made of the same type of sound insulation material based on the sound insulation volume of the sound insulation parts.

[0097] It should be noted that, according to sound insulation theory, sound insulation varies with frequency and is generally divided into stiffness control zone, surface density control zone, and coincidence benefit control zone. For automobiles, sound insulation design is basically located within the surface density control zone. The theoretical sound insulation of multi-angle incident sound within the surface density control zone is given by equations (4), (5), and (6):

[0098] Single-layer board: STL1=20logm1f-47.5(4)

[0099] Double-layer board:

[0100]

[0101] Where f0 is the natural frequency of the double-layer plate, m1 and m2 are the areal densities of the two layers, ρ0 is the average density of the two layers, c is the speed of sound, and d is the thickness of the two layers.

[0102] In automobiles, the commonly used sound insulation material is a double-layer structure consisting of a heavy-duty coating and a sound-absorbing layer. When bonded to the sheet metal, it forms a double-layer sound insulation system. The outer layer of the sheet metal and the sound insulation parts is a surface density layer, and the middle sound-absorbing material is an elastic layer. Therefore, the sound insulation of the sound insulation parts (surface density layer + elastic layer) is given by equation (6):

[0103]

[0104] Analogical calculation between sound insulation parts made of the same raw material but with different thicknesses and surface densities. According to the above formula, the insertion loss of scheme a is given by formula (7):

[0105]

[0106] The insertion loss of scheme b is given by equation (8):

[0107]

[0108] The difference in sound insulation performance between scheme a and scheme b is given by equation (9):

[0109]

[0110] It is evident that, for the same material composition, the insertion loss is only related to the density of the mass layer and the thickness of the elastic layer, and is unrelated to the sheet metal itself.

[0111] In this embodiment, once the sound insulation of one combination of surface density and thickness is known, the sound insulation of any other combination of surface density and thickness can theoretically be calculated. Since the sound insulation theory formula is based on the theoretical derivation of a large flat plate, which differs from reality and does not consider the effects of structural boundaries, damping, material composition, resonance, and coincidence effects, it is difficult to directly calculate the accurate sound insulation. The sound insulation of a certain surface density and thickness ratio can be experimentally measured. Based on this, the sound insulation of other ratios can be calculated by analogy using formula (3). This application, based on the basic principles of sound insulation and combined with a small amount of test data, has developed a sound insulation estimation method that can be quickly applied to compare the sound insulation effects of different schemes, saving time for project development. Simultaneously, based on the precise results, the surface density and thickness of the sound insulation material can be optimized, saving costs.

[0112] The above are only some embodiments of this application and do not limit the scope of implementation of this application. Any equivalent structural or procedural transformations made based on the content of this application specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the protection scope of this application.

[0113] This application also provides a sound insulation calculation device, please refer to... Figure 5 The sound insulation calculation device includes:

[0114] Data acquisition module 10 is used to acquire the first surface density value, first thickness value, and first actual sound insulation value of the first sample of similar sound insulation materials, and the second surface density value and second thickness value of the second sample.

[0115] The theoretical calculation module 20 is used to obtain a first mapping relationship based on the first surface density value, the first thickness value, the first actual sound insulation value, the second surface density value, and the second thickness value, and to calculate the first theoretical sound insulation of the second template based on the first mapping relationship;

[0116] Error detection module 30 is used to detect the second actual sound insulation volume of the second sample. When the absolute value of the difference between the first theoretical sound insulation volume and the second actual sound insulation volume does not reach the preset error threshold, the sound insulation volume of the same type of sound insulation material is calculated using the first mapping relationship.

[0117] Optionally, the data acquisition module 10 is further configured to acquire the measured areal density value, measured thickness value, and measured sound insulation value of multiple samples of the same type of material; and take the average value of the measured areal density value, the measured thickness value, and the measured sound insulation value as the first areal density value, the first thickness value, and the first actual sound insulation value, respectively.

[0118] Optionally, the theoretical calculation module 20 is further configured to obtain a first coefficient in the areal density law; obtain a first ratio based on the first areal density value and the second areal density value; take a first commonly used logarithmic value of the first ratio and obtain a first product based on the first commonly used logarithmic value and the coefficient; obtain a second ratio based on the first thickness value and the second thickness value; take a second commonly used logarithmic value of the second ratio and obtain a second product based on the second commonly used logarithmic value and the coefficient; obtain a first sum based on the first product and the second product; and obtain the first theoretical sound insulation based on the first difference between the first actual sound insulation and the first sum.

[0119] Optionally, the error detection module 30 is further configured to obtain the third actual sound insulation volume of the third sample of the same type of sound insulation material; obtain the third surface density value and the third thickness value based on the third actual sound insulation volume; and adjust the model of the sound insulation board made of the same type of sound insulation material based on the third surface density value and the third thickness value.

[0120] Optionally, the error detection module 30 is further configured to calculate the third thickness value of the third sample based on the first mapping relationship, the third actual sound insulation, the second actual sound insulation, the second surface density value, and the second thickness value when the third surface density value is determined; or, when the third thickness value is determined, calculate the third surface density value of the third sample based on the first mapping relationship, the third actual sound insulation, the second actual sound insulation, the second surface density value, and the second thickness value.

[0121] Optionally, the power determination module 10 is further configured to obtain the sound insulation volume of the double-layer board and the single-layer board of the same type of sound insulation material; obtain the sound insulation volume of the sound insulation component based on the second difference between the sound insulation volume of the double-layer board and the sound insulation volume of the single-layer board; and obtain the sound insulation performance difference value between the sound insulation components of different models made of the same type of sound insulation material based on the sound insulation volume of the sound insulation component.

[0122] The sound insulation calculation device provided in this application, employing the sound insulation calculation method in the above embodiments, can solve the technical problem of lacking a rapid method for calculating the sound insulation of sound insulation materials based on theory and experiment. Compared with the prior art, the beneficial effects of the sound insulation calculation device provided in this application are the same as those of the sound insulation calculation method provided in the above embodiments, and other technical features in the sound insulation calculation device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0123] This application provides a sound insulation calculation device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the sound insulation calculation method in the first embodiment described above.

[0124] The following is for reference. Figure 5 The diagram illustrates a structural schematic of a sound insulation calculation device suitable for implementing the embodiments of this application. The sound insulation calculation device in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 5 The volume insulation calculation device shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0125] like Figure 6 As shown, the sound insulation calculation device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for device operation. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. The communication device 1009 allows the sound insulation calculation device to communicate wirelessly or wiredly with other devices to exchange data. Although the figure shows a sound insulation calculation device with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented alternatively.

[0126] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0127] The sound insulation calculation device provided in this application, employing the sound insulation calculation method described in the above embodiments, can solve the technical problem of lacking a rapid method for calculating the sound insulation of sound insulation materials based on theory and experiment. Compared with the prior art, the beneficial effects of the sound insulation calculation device provided in this application are the same as those of the sound insulation calculation method provided in the above embodiments, and other technical features of this sound insulation calculation device are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0128] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0129] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0130] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the sound insulation calculation method in the above embodiments.

[0131] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0132] The aforementioned computer-readable storage medium may be included in the sound insulation calculation device; or it may exist independently and not assembled into the sound insulation calculation device.

[0133] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0134] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0135] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0136] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described sound insulation calculation method, which can solve the technical problem of lacking a rapid method for calculating the sound insulation of sound insulation materials based on theory and experiment. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the sound insulation calculation method provided in the above embodiments, and will not be repeated here.

[0137] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A sound insulation volume calculation method characterized by, The sound insulation volume calculation method comprises: Obtaining a first surface density value, a first thickness value and a first actual sound insulation volume of a first sample of the same type of sound insulation material, and a second surface density value and a second thickness value of a second sample; Obtaining a first mapping relationship according to the first surface density value, the first thickness value, the first actual sound insulation volume, the second surface density value and the second thickness value, and calculating a first theoretical sound insulation volume of the second sample according to the first mapping relationship; Detecting a second actual sound insulation volume of the second sample, and calculating a sound insulation volume of the same type of sound insulation material using the first mapping relationship when an absolute value of a difference between the first theoretical sound insulation volume and the second actual sound insulation volume does not reach a preset error threshold. The first mapping relationship is obtained according to the first surface density value, the first thickness value, the first actual sound insulation volume, the second surface density value and the second thickness value, and the first theoretical sound insulation volume of the second sample is calculated according to the first mapping relationship, which comprises: Obtaining a first coefficient in a surface density law; Obtaining a first ratio according to the first surface density value and the second surface density value; Taking a first common logarithm value of the first ratio, and obtaining a first product according to the first common logarithm value and the coefficient; Obtaining a second ratio according to the first thickness value and the second thickness value; Taking a second common logarithm value of the second ratio, and obtaining a second product according to the second common logarithm value and the coefficient; Obtaining a first sum according to the first product and the second product; Obtaining the first theoretical sound insulation volume according to a first difference value between the first actual sound insulation volume and the first sum.

2. The sound insulation volume calculation method according to claim 1, characterized by, The first surface density value, the first thickness value and the first actual sound insulation volume of the first sample of the same type of sound insulation material, and the second surface density value and the second thickness value of the second sample are obtained, which comprises: Obtaining measured surface density values, measured thickness values and measured sound insulation volumes of a plurality of samples of the same type of sound insulation material; Taking average values of the measured surface density values, the measured thickness values and the measured sound insulation volumes as the first surface density value, the first thickness value and the first actual sound insulation volume respectively.

3. The sound insulation volume calculation method according to claim 1, characterized by, After the step of detecting the second actual sound insulation volume of the second sample, and calculating the sound insulation volume of the same type of sound insulation material using the first mapping relationship when an absolute value of a difference between the first theoretical sound insulation volume and the second actual sound insulation volume does not reach a preset error threshold, the method further comprises: Obtaining a third actual sound insulation volume of a third sample of the same type of sound insulation material; Obtaining a third surface density value and a third thickness value according to the third actual sound insulation volume; Adjusting a model of a sound insulation board made of the same type of sound insulation material according to the third surface density value and the third thickness value.

4. The sound insulation volume calculation method according to claim 3, characterized by, The third surface density value and the third thickness value are obtained according to the third actual sound insulation volume, which comprises: When the third surface density value is determined, calculating the third thickness value of the third sample according to the first mapping relationship, the third actual sound insulation volume, the second actual sound insulation volume, the second surface density value and the second thickness value; or, When the third thickness value is determined, calculating the third surface density value of the third sample according to the first mapping relationship, the third actual sound insulation volume, the second actual sound insulation volume, the second surface density value and the second thickness value. When the third thickness value is determined, a third area density value of the third sample is calculated according to the first mapping relationship, the third actual sound insulation volume, the second actual sound insulation volume, and the second area density value and the second thickness value.

5. The sound insulation volume calculation method according to claim 1, characterized by, Before the step of obtaining the first area density value, the first thickness value, and the first actual sound insulation volume of the first sample and the second area density value and the second thickness value of the second sample of the same type of sound insulation material, the method further comprises: obtaining a double-layer sound insulation volume and a single-layer sound insulation volume of the same type of sound insulation material; obtaining a sound insulation performance difference value between sound insulation parts of different types of the same type of sound insulation material according to a second difference value of the double-layer sound insulation volume and the single-layer sound insulation volume. The device comprises:

6. A sound insulation amount calculation device characterized by comprising: a data obtaining module configured to obtain a first area density value, a first thickness value, and a first actual sound insulation volume of a first sample and a second area density value and a second thickness value of a second sample of the same type of sound insulation material; a theoretical calculation module configured to obtain a first mapping relationship according to the first area density value, the first thickness value, the first actual sound insulation volume, the second area density value, and the second thickness value, and calculate a first theoretical sound insulation volume of the second sample according to the first mapping relationship; an error detection module configured to detect a second actual sound insulation volume of the second sample, and calculate a sound insulation volume of the same type of sound insulation material using the first mapping relationship when an absolute value of a difference between the first theoretical sound insulation volume and the second actual sound insulation volume does not reach a preset error threshold. The theoretical calculation module is further configured to obtain a first coefficient in an area density law, obtain a first ratio value according to the first area density value and the second area density value, take a first common logarithm value of the first ratio value, and obtain a first product according to the first common logarithm value and the coefficient, obtain a second ratio value according to the first thickness value and the second thickness value, take a second common logarithm value of the second ratio value, and obtain a second product according to the second common logarithm value and the coefficient, obtain a first sum value according to the first product and the second product, and obtain the first theoretical sound insulation volume according to a first difference value between the first actual sound insulation volume and the first sum value. The device comprises a memory, a processor, and a computer program stored on the memory and executable on the processor, and the computer program is configured to implement the steps of the sound insulation volume calculation method according to any one of claims 1 to 5.

7. A sound insulation quantity calculation device characterized by comprising: The storage medium is a computer readable storage medium, and the storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the sound insulation volume calculation method according to any one of claims 1 to 5.

8. A storage medium, characterized by The computer program product comprises a computer program, and the computer program is executed by a processor to implement the sound insulation volume calculation method according to any one of claims 1 to 5.

9. A computer program product, characterised in that, ​

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