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

Abstract

The invention relates to the technical field of vehicle sound insulation, and discloses a sound insulation amount calculation method, device and equipment, a storage medium and a computer product, and the method comprises the steps: obtaining a first surface density value, a first thickness value and a first actual sound insulation amount of a first sample plate of similar sound insulation materials and a second surface density value and a second thickness value of a second sample plate; obtaining a first mapping relation according to the first surface density value, the first thickness value, the first actual sound insulation amount, the second surface density value and the second thickness value, and calculating a first theoretical sound insulation amount of the second sample plate according to the first mapping relation; and detecting a second actual sound insulation amount of the second sample plate, and when the absolute value of the difference between the first theoretical sound insulation amount and the second actual sound insulation amount does not reach a preset error threshold value, calculating the sound insulation amount of the same kind of sound insulation materials by using the first mapping relation. The method achieves the precise prediction of the sound insulation performance, and has the advantages of high precision, high efficiency and low investment.

Description

Technical Field

[0001] The present application relates to the field of vehicle sound insulation technology, and in particular to a method, device, equipment, storage medium and computer product for calculating sound insulation volume. Background Art

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

[0003] However, the design of sound insulation is directly related to surface density, cost and space requirements. Good sound insulation requires higher cost and more surface density, which makes it particularly important to balance sound insulation performance, cost surface density and space when designing a vehicle. Accurate design of sound insulation is a difficult point in the industry, but it is a requirement for lean design to improve product competitiveness. To carry out accurate sound insulation design, the prediction of the sound insulation volume of the sound insulation material is of paramount importance. Summary of the invention

[0004] The purpose of this application is to provide a method, device, equipment, storage medium and computer product for calculating the sound insulation volume, aiming to solve the technical problem of the lack of a method for quickly calculating the sound insulation volume of sound insulation materials based on theory and experiments.

[0005] To achieve the above purpose, the present application proposes a method for calculating sound insulation volume, which includes:

[0006] Obtain 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;

[0007] Acquire 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 calculate a first theoretical sound insulation volume of the second sample according to the first mapping relationship;

[0008] The second actual sound insulation volume of the second sample is detected, 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, the first mapping relationship is used to calculate the sound insulation volume of the same type of sound insulation material.

[0009] In one embodiment, the method of 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 includes:

[0010] Obtaining the measured surface density values, measured thickness values ​​and measured sound insulation values ​​of multiple samples of the same material;

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

[0012] In one embodiment, the obtaining of 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 includes:

[0013] Get the first coefficient in the surface density law;

[0014] Acquire a first ratio according to the first surface density value and the second surface density value;

[0015] 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;

[0016] Acquire a second ratio according to the first thickness value and the second thickness value;

[0017] 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;

[0018] Obtain a first sum value according to the first product and the second product;

[0019] The first theoretical sound insulation volume is obtained according to a first difference between the first actual sound insulation volume and the first sum.

[0020] In one embodiment, the step of detecting 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 a preset error threshold, after the step of using the first mapping relationship to calculate the sound insulation volume of the same type of sound insulation material, further includes:

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

[0022] Acquire a third surface density value and a third thickness value according to the third actual sound insulation volume;

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

[0024] In one embodiment, obtaining a third surface density value and a third thickness value according to the third actual sound insulation volume includes:

[0025] When the third surface density value is determined, the third thickness value of the third sample is calculated according to the first mapping relationship, the third actual insulation volume, the second actual insulation volume, 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 template is calculated according to the first mapping relationship, the third actual insulation volume, the second actual insulation volume, the second surface density value and the second thickness value.

[0027] In one embodiment, before the step of obtaining 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, the step further includes:

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

[0029] Obtaining the sound insulation volume of the sound insulation part according to the second difference between the double-layer board sound insulation volume and the single-layer board sound insulation volume;

[0030] The difference in sound insulation performance between the sound insulation parts of different models made of the same type of sound insulation material is obtained according to the sound insulation amount of the sound insulation parts.

[0031] In addition, to achieve the above-mentioned purpose, the present application also proposes a sound insulation volume calculation device, the device comprising:

[0032] A data acquisition module, used to obtain 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;

[0033] a theoretical calculation module, configured to obtain 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 calculate a first theoretical sound insulation volume of the second sample according to the first mapping relationship;

[0034] The error detection module is used to detect the second actual sound insulation volume of the second sample, 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, the first mapping relationship is used to calculate the sound insulation volume of the same type of sound insulation material.

[0035] In addition, to achieve the above-mentioned purpose, the present application also proposes a sound insulation volume calculation device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the sound insulation volume calculation method as described above.

[0036] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the sound insulation volume calculation method as described above are implemented.

[0037] In addition, to achieve the above-mentioned purpose, the present application also proposes a computer program product, which includes a computer program, and when the computer program is executed by a processor, the above-mentioned sound insulation volume calculation method is implemented.

[0038] The present application proposes a method for calculating sound insulation, which includes: obtaining a first surface density value, a first thickness value, and a first actual sound insulation value 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 value, the second surface density value and the second thickness value, and calculating the first theoretical sound insulation value of the second sample according to 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 the same type of sound insulation material. Based on the basic principles of sound insulation and combined with a small amount of test data, the present application has developed a sound insulation estimation method, which can be quickly applied to the comparison of sound insulation effects of different schemes, saving time for project development; at the same time, based on the precise results, the surface density, thickness and other aspects of the sound insulation material can be optimized to save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of a flow chart provided for the first embodiment of the method for calculating sound insulation volume of the present application;

[0040] Figure 2 A schematic diagram of a flow chart provided for the second embodiment of the method for calculating sound insulation volume of the present application;

[0041] Figure 3 A first flow chart of the third embodiment of the method for calculating sound insulation volume provided in the present application;

[0042] Figure 4 A second flow chart of the method for calculating sound insulation volume provided in the third embodiment of the present application;

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

[0044] Figure 6 A schematic diagram of the structure of a sound insulation volume calculation device in the hardware operating environment involved in the sound insulation volume calculation method in the embodiment of the present application. DETAILED DESCRIPTION

[0045] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0046] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0047] The main solution of the embodiment of the present application is: obtaining the first surface density value, the first thickness value and the first actual sound insulation amount of the first sample of the same sound insulation material and the second surface density value and the second thickness value of the second sample; obtaining a first mapping relationship according to the first surface density value, the first thickness value, the first actual sound insulation amount, the second surface density value and the second thickness value, and calculating the first theoretical sound insulation amount of the second sample according to the first mapping relationship; detecting the second actual sound insulation amount of the second sample, and when the absolute value of the difference between the first theoretical sound insulation amount and the second actual sound insulation amount does not reach a preset error threshold, using the first mapping relationship to calculate the sound insulation amount of the same sound insulation material.

[0048] Sound insulation design can be divided into single-layer sound insulation and multi-layer sound insulation. Double-layer sound insulation is the most common type and is widely used in the automotive industry because it can achieve better sound insulation than single-layer sound insulation. Although there are theoretical formulas for calculating the sound insulation volume of double-layer sound insulation materials, the relevant formulas are mostly based on theoretical derivations of large flat panels, which are different from actual conditions. If you want to carry out accurate sound insulation design, the prediction of the sound insulation volume of sound insulation materials is of utmost importance.

[0049] Based on the basic principles of sound insulation and combined with a small amount of test data, this application has developed a method for estimating the sound insulation volume, which can be quickly applied to compare the sound insulation effects of different schemes, saving time for project development; at the same time, based on the precise results, the surface density, thickness and other aspects of the sound insulation material can be optimized to save costs.

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

[0051] Based on this, the present application embodiment provides a method for calculating the sound insulation volume, referring to Figure 1 , Figure 1 A schematic diagram of the flow chart provided for Example 1 of the sound insulation volume calculation method of the present application.

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

[0053] Step S10: Obtain 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.

[0054] It should be noted that the surface density of the sound insulation material refers to the ratio of the surface density of a single surface of the sound insulation board to its area, usually expressed in kilograms per square meter (kg / m 2 ) as a unit. This parameter is one of the important indicators for evaluating the performance of sound insulation materials, because generally speaking, the higher the density of the material, the better its sound insulation effect. This is because the surface density law states that for every doubling of the surface density of the material, the theoretical sound insulation volume can be increased by 6 decibels (dB). The sound insulation effect of the material can be estimated by its density. According to the "surface density law", the larger the surface density or surface density of the 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 surface density and density of the material, as well as its sound insulation and sound absorption performance in a wide frequency band should be considered. In addition, high-density sound insulation materials can also reduce the ability of sound waves to reflect, thereby reducing the rebound of sound waves in space. In practical applications, in addition to considering density, it is also necessary to comprehensively consider factors such as material thickness, structure, material and surface treatment to select suitable materials and improve sound insulation performance.

[0055] Step S20: Obtain 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 calculate a first theoretical sound insulation volume of the second sample according to the first mapping relationship.

[0056] It should be understood that in acoustics, "mapping relationship" usually refers to the transmission characteristics of a material to sound waves, which can be predicted by the physical properties of the material.

[0057] Step S30: detecting the second actual sound insulation volume of the second sample, 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, using the first mapping relationship to calculate the sound insulation volume of the same type of sound insulation material.

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

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

[0060] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 2 , Figure 2 A flow chart of the second embodiment of the sound insulation calculation method of the present application is provided. In step S10, the sound insulation calculation method further includes:

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

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

[0063] Step S102: taking the average values ​​of the measured surface density value, the measured thickness value and the measured sound insulation volume as the first surface density value, the first thickness value and the first actual sound insulation volume 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 test is carried out on three flat sample panels, namely IL1, IL2 and IL3; the average sound insulation is: IL0 = (IL1 + IL2 + IL3) / 3.

[0065] In step S20, the method for calculating the sound insulation volume further includes:

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

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

[0068] Step S202: obtaining a first ratio according to the first surface density value and the second surface density value;

[0069] Step S203: obtaining a first common logarithmic value of the first ratio, and obtaining a first product according to the first common logarithmic value and the coefficient.

[0070] It should be noted that the first surface density value is m0, and the second surface density value is m x , then take the first common logarithm value of the first ratio, and obtain the first product according to the first common logarithm value and the coefficient:

[0071]

[0072] Step S204: obtaining a second ratio according to the first thickness value and the second thickness value;

[0073] Step S205: obtaining a second common logarithmic value of the second ratio, and obtaining a second product according to the second common logarithmic value and the coefficient.

[0074] It should be noted that the first surface density value is d0, and the second surface density value is d x , then take the second common logarithm value of the second ratio, and obtain the second product according to the second common logarithm value and the coefficient:

[0075]

[0076] Step S206: Obtain a first sum value according to the first product and the second product;

[0077] Step S207: Obtain the first theoretical sound insulation volume according to a first difference between the first actual sound insulation volume and the first sum.

[0078] It should be noted that according to formula (1) and formula (2), formula (3) can be obtained. IL0, m0 and d0 have been obtained, and any m can be calculated. x and d x Sound insulation IL under the ratio x :

[0079]

[0080] In this embodiment, four types of flat plate samples with different specifications were prepared for sound insulation test, and three samples were used for each type for averaging. Flat plate sample A: surface density m A =4.95kg, thickness d A =30mm; Flat sample B: surface density m B =2.84kg, thickness d B =30mm; Flat plate sample C: m C =2.61kg,d C =20mm; flat plate sample D: m D =2.84kg,d D =10mm; the sound insulation of the test is IL A =24.31dB, IL B =19.61dB, IL C =14.95dB, IL D =9.9dB. Using the flat sample A as the benchmark, the theoretical sound insulation of B, C, and D is calculated according to formula (3). The calculation results are shown in the following table:

[0081]

[0082] From the comparison results in the above table, it can be seen that the sound insulation calculated by the above method is very close to the actual test result of the sample, with an error within 0.5dB, which fully meets the engineering requirements and illustrates the scientificity, reference and practical application value of this method.

[0083] In this embodiment, a method for predicting the volume of acoustic sound insulation materials for automobiles is established based on theoretical derivation and combined with test data correction. Specifically: through the analogy theoretical calculation of the volume of sound insulation with different parameters, the basic law of sound insulation design is obtained, that is, the volume of sound insulation is related to the surface density of the sound insulation material and the thickness of the sound-absorbing layer; combined with the measured volume of a flat plate sample, the theoretical calculation formula of the volume of sound insulation under different ratios is obtained by bringing in the analogy method, which can be used for the prediction and calculation comparison of the test volume of different design schemes; it also provides a theoretical basis for the balanced design of surface density and thickness under the premise of determining the volume of sound insulation target. Based on the basic principles of sound insulation and combined with a small amount of test data, a method for estimating the volume of sound insulation is developed, which can be quickly applied to the comparison of the sound insulation effects of different schemes, saving time for project development; at the same time, based on the precise results, the surface density, thickness and other aspects of the sound insulation material can be optimized to save costs. It has a good reference value and can be widely used in the design of automotive sound insulation parts.

[0084] Based on the first embodiment and / or the second embodiment of the present application, in the third embodiment of the present application, the same or similar contents as those of the above-mentioned first and second embodiments can refer to the above introduction, and will not be repeated later. Figure 3 , Figure 3 The first flow chart of the third embodiment of the sound insulation calculation method of the present application is provided. In step S30, the sound insulation calculation method further includes:

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

[0086] Step S302: acquiring a third surface density value and a third thickness value according to the third actual sound insulation volume;

[0087] Step S303: adjusting 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 formula (3), when the sound insulation volume of one surface density and thickness combination is known, the sound insulation volume of any other surface density and thickness combination can be calculated in theory. Because the sound insulation theory formula is based on the theoretical derivation of a large flat plate, it is different from the actual situation, and does not consider the influence of structural boundaries, damping, material composition, resonance and matching effects, it is difficult to directly calculate the accurate sound insulation volume. The sound insulation volume of a certain surface density and thickness ratio can be measured through experiments, and on this basis, the sound insulation volume of other ratios can be calculated by analogy using formula (3).

[0089] In step S30, the method for calculating the sound insulation volume further includes:

[0090] Step S304: when the third surface density value is determined, the third thickness value of the third sample is calculated according to the first mapping relationship, the third actual insulation volume, the second actual insulation volume, the second surface density value and the second thickness value;

[0091] Step S305: When the third thickness value is determined, the third surface density value of the third sample is calculated according to the first mapping relationship, the third actual insulation volume, the second actual insulation volume, the second surface density value and the second thickness value.

[0092] It should be understood that according to the forward target decomposition of the whole vehicle, when the sound insulation target of a certain part is established, a balance can be made between surface density and thickness based on space limitations, surface density requirements and other requirements. That is, when one of the surface density or thickness is limited, the required value of the other variable can be calculated while meeting the sound insulation requirement, so as to obtain the optimal surface density or thickness design.

[0093] Please refer to Figure 3 , Figure 3 The second flow chart of the third embodiment of the sound insulation volume calculation method of the present application is provided. Before step S10, the sound insulation volume calculation method further includes:

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

[0095] Step S104: obtaining the sound insulation volume of the sound insulation component according to the second difference between the double-layer board sound insulation volume and the single-layer board sound insulation volume;

[0096] Step S105: obtaining the difference in sound insulation performance between the sound insulation parts of different models made of the same type of sound insulation material according to the sound insulation amount of the sound insulation parts.

[0097] It should be noted that according to the sound insulation theory, the sound insulation varies with frequency and is generally divided into the stiffness control area, the surface density control area and the matching benefit control area. For automobiles, the sound insulation design is basically located in the surface density control area. The sound insulation theory for multi-angle incidence in the surface density control area is formula (4), formula (5) and formula (6):

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

[0099] Double layer board:

[0100]

[0101] Among them, f0 is the natural frequency of the double-layer plate, m1 and m2 are the surface densities of the two-layer plates, ρ0 is the average density of the two-layer plates, c is the sound velocity, and d is the thickness of the two-layer plates.

[0102] In automobiles, the sound insulation material generally used is a double-layer structure of a heavy coating and a sound-absorbing layer. After being bonded to the sheet metal, a double-layer board-type sound insulation system is formed. The outer surface of the sheet metal and the sound insulation part is the surface density layer, and the sound-absorbing material in the middle is the elastic layer. The sound insulation volume of the sound insulation part (surface density layer + elastic layer) is expressed as formula (6):

[0103]

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

[0105]

[0106] The insertion loss of scheme b is:

[0107]

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

[0109]

[0110] It can be seen that for the same material composition, the insertion loss is only related to the mass layer density and elastic layer thickness, and has nothing to do with the sheet metal itself.

[0111] In this embodiment, when the sound insulation volume of one surface density and thickness combination is known, the sound insulation volume of any other surface density and thickness combination can be calculated in theory. Because the sound insulation theory formula is based on the theoretical derivation of a large flat plate, it is different from the actual situation, and does not consider the influence of structural boundaries, damping, material composition, resonance and matching effects, it is difficult to directly calculate the accurate sound insulation volume. The sound insulation volume of a certain surface density and thickness ratio can be measured through experiments. On this basis, the sound insulation volume of other ratios can be calculated by analogy using formula (3). This application is based on the basic principles of sound insulation and combined with a small amount of test data to develop a sound insulation volume estimation method, which can be quickly applied to the sound insulation effect comparison of different schemes, saving time for project development; at the same time, based on the precise results, the surface density, thickness and other aspects of the sound insulation material can be optimized to save costs.

[0112] The above are only some embodiments of the present application, and the scope of implementation of the present application is not limited thereto. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the protection scope of the present application.

[0113] This application also provides a sound insulation calculation device, please refer to Figure 5 , the sound insulation volume calculation device comprises:

[0114] The data acquisition module 10 is used to obtain 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;

[0115] Theoretical calculation module 20, used for 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;

[0116] an error detection module 30, configured to detect a second actual sound insulation volume of the second sample, and to calculate the sound insulation volume of the same type of sound insulation material using the first mapping relationship 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;

[0117] Optionally, the data acquisition module 10 is also used to obtain the measured surface density values, measured thickness values ​​and measured sound insulation values ​​of multiple samples of the same material; and take the average values ​​of the measured surface density values, the measured thickness values ​​and the measured sound insulation values ​​as the first surface density value, the first thickness value and the first actual sound insulation value respectively.

[0118] Optionally, the theoretical calculation module 20 is further used to obtain a first coefficient in the surface density law; obtain a first ratio according to the first surface density value and the second surface density value; take a first common logarithm value of the first ratio, and obtain a first product according to the first common logarithm value and the coefficient; obtain a second ratio according to the first thickness value and the second thickness value; take a second common logarithm value of the second ratio, and obtain a second product according to the second common logarithm value and the coefficient; obtain a first sum according to the first product and the second product; and obtain the first theoretical insulation volume according to a first difference between the first actual insulation volume and the first sum.

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

[0120] Optionally, the error detection module 30 is also used to calculate the third thickness value of the third template according to the first mapping relationship, the third actual insulation volume, the second actual insulation volume, 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 template according to the first mapping relationship, the third actual insulation volume, the second actual insulation volume, the second surface density value and the second thickness value.

[0121] Optionally, the power judgment module 10 is also used to obtain the double-layer board volume insulation and the single-layer board volume insulation of the same type of sound insulation material; obtain the sound insulation volume of sound insulation parts according to the second difference between the double-layer board volume insulation and the single-layer board volume insulation; obtain the difference in sound insulation performance between the sound insulation parts of each model made of the same type of sound insulation material according to the sound insulation volume of the sound insulation parts.

[0122] The sound insulation volume calculation device provided by the present application adopts the sound insulation volume calculation method in the above embodiment, which can solve the technical problem of the lack of a rapid sound insulation volume measurement method of sound insulation materials based on theory and experiment. Compared with the prior art, the beneficial effects of the sound insulation volume calculation device provided by the present application are the same as the beneficial effects of the sound insulation volume calculation method provided by the above embodiment, and other technical features in the sound insulation volume calculation device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0123] The present application provides a sound insulation volume 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 so that the at least one processor can execute the sound insulation volume calculation method in the above-mentioned embodiment 1.

[0124] Reference below Figure 5 , which shows a schematic diagram of the structure of a sound insulation volume calculation device suitable for implementing the embodiment of the present application. The sound insulation volume calculation device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 5 The illustrated sound insulation volume calculation device is merely an example and should not limit the functions and scope of use of the embodiments of the present application.

[0125] like Figure 6 As shown, the sound insulation calculation device may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the device are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 may allow the sound insulation calculation device to communicate with other devices wirelessly or by wire 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 the systems shown. More or fewer systems may be implemented or have instead.

[0126] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0127] The sound insulation volume calculation device provided by the present application adopts the sound insulation volume calculation method in the above embodiment, which can solve the technical problem of the lack of a rapid sound insulation volume measurement method of sound insulation materials based on theory and experiment. Compared with the prior art, the beneficial effects of the sound insulation volume calculation device provided by the present application are the same as the beneficial effects of the sound insulation volume calculation method provided by the above embodiment, and the other technical features in the sound insulation volume calculation device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

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

[0129] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0130] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the method for calculating the sound insulation volume in the above-mentioned embodiment.

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

[0132] The computer-readable storage medium may be included in the sound insulation volume calculation device; or may exist independently without being assembled into the sound insulation volume calculation device.

[0133] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0134] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0135] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0136] The readable storage medium provided in the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned sound insulation volume calculation method, and can solve the technical problem of the lack of a rapid measurement method for the sound insulation volume 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 the present application are the same as the beneficial effects of the sound insulation volume calculation method provided in the above-mentioned embodiment, and will not be elaborated here.

[0137] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for calculating sound insulation, the method comprising: Obtain 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; Acquire 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 calculate a first theoretical sound insulation volume of the second sample according to the first mapping relationship; The second actual sound insulation volume of the second sample is detected, 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, the first mapping relationship is used to calculate the sound insulation volume of the same type of sound insulation material.

2. The method for calculating sound insulation volume according to claim 1, wherein the step of obtaining the first surface density value, the first thickness value and the first actual sound insulation volume of the first sample of the same sound insulation material and the second surface density value and the second thickness value of the second sample comprises: Obtaining the measured surface density values, measured thickness values ​​and measured sound insulation values ​​of multiple samples of the same material; The average values ​​of the measured surface density value, the measured thickness value and the measured sound insulation volume are taken as the first surface density value, the first thickness value and the first actual sound insulation volume respectively.

3. The method for calculating the sound insulation volume according to claim 1, wherein 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, comprising: Get the first coefficient in the surface density law; Acquire 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; Acquire 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; Obtain a first sum value according to the first product and the second product; The first theoretical sound insulation volume is obtained according to a first difference between the first actual sound insulation volume and the first sum.

4. The method for calculating sound insulation volume according to claim 1, wherein 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 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, the method further comprises: Obtaining a third actual sound insulation volume of a third sample of the same type of sound insulation material; Acquire a third surface density value and a third thickness value according to the third actual sound insulation volume; The model of the sound insulation board made of the same sound insulation material is adjusted according to the third surface density value and the third thickness value.

5. The method for calculating the sound insulation volume according to claim 4, wherein the step of obtaining a third surface density value and a third thickness value according to the third actual sound insulation volume comprises: When the third surface density value is determined, the third thickness value of the third sample is calculated according to the first mapping relationship, the third actual insulation volume, the second actual insulation volume, the second surface density value and the second thickness value; or, When the third thickness value is determined, the third surface density value of the third template is calculated according to the first mapping relationship, the third actual insulation volume, the second actual insulation volume, the second surface density value and the second thickness value.

6. The method for calculating sound insulation volume according to claim 1, before the step of obtaining the first surface density value, the first thickness value and the first actual sound insulation volume of the first sample of the same sound insulation material and the second surface density value and the second thickness value of the second sample, further comprising: Obtain the double-layer board volume insulation and the single-layer board volume insulation of the same type of sound insulation material; Obtaining the sound insulation volume of the sound insulation part according to a second difference between the double-layer board sound insulation volume and the single-layer board sound insulation volume; The difference in sound insulation performance between the sound insulation parts of different models made of the same type of sound insulation material is obtained according to the sound insulation amount of the sound insulation parts.

7. A sound insulation calculation device, the device comprising: A data acquisition module, used to obtain 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; a theoretical calculation module, configured to obtain 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 calculate a first theoretical sound insulation volume of the second sample according to the first mapping relationship; The error detection module is used to detect the second actual sound insulation volume of the second sample, 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, the first mapping relationship is used to calculate the sound insulation volume of the same type of sound insulation material.

8. A sound insulation volume calculation device, the device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the method for calculating the sound insulation volume according to any one of claims 1 to 6.

9. A storage medium, wherein the storage medium is a computer-readable storage medium, wherein a computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of the method for calculating the sound insulation volume as described in any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the method for calculating the sound insulation volume according to any one of claims 1 to 6 is implemented.

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