Damping parameter measuring method and system of loudspeaker vibration component

Abstract

The invention discloses a method and a system for measuring damping parameters of a loudspeaker vibration component. The method comprises the steps of performing transient solution on a simulation analysis model of the loudspeaker vibration component according to a set initial damping value of the vibration component, calculating a free vibration process of the vibration component under a specified boundary condition, and obtaining a vibration displacement attenuation curve of the vibration component; reading the simulation attenuation time of the vibration part, and comparing the simulation attenuation time with the actual attenuation time of the vibration part to obtain a relative error; tolerance judgment is conducted, and if the relative error is smaller than a preset tolerance, the set initial damping value serves as the actual damping value of the vibration component; and if the relative error is greater than or equal to the preset tolerance, modifying the initial damping value, and repeating the steps until the relative error is less than the preset tolerance. According to the method, damping parameters of a vibration component material are calculated through back-stepping according to simulation and measurement results of attenuation time of a vibration displacement attenuation curve of a loudspeaker vibration component.

Description

Technical Field

[0001] The invention belongs to the field of loudspeaker design and manufacturing, and relates to a method and system for measuring damping parameters of a loudspeaker vibration component. Background Art

[0002] The vibration components of a loudspeaker mainly include the diaphragm and the voice coil. Some loudspeaker vibration components may also include centering supports and / or dust caps, etc. These vibration components constitute the vibration system of the loudspeaker. After the voice coil receives an electrical signal, it can drive the vibration system to vibrate under the magnetic field of the loudspeaker magnetic circuit system, thereby achieving electroacoustic conversion. The materials of most vibration components are polymer materials or composite materials. For example, the folding ring of the diaphragm is pressed from polymer materials such as foam plastics or rubber. Its material properties are relatively complex and difficult to measure. In addition, process factors such as cutting, gluing and hot pressing during the processing process will have an important impact on the damping of the finished products of each component.

[0003] The damping of the vibration component material of the speaker is one of the important dynamic mechanical parameters that characterize the viscoelastic properties of the material. It can reflect the internal characteristics of the vibration component material when the speaker is working, and it is closely related to the characteristics and performance of the speaker. Accurately measuring the damping of the vibration component of the speaker is of great significance and role in in-depth research and mastering its material characteristics, and then designing and manufacturing high-quality speakers.

[0004] Existing methods for measuring material damping include: calculating its dynamic mechanical parameters (including damping) by measuring the vibration response of the spline under test, usually including forced resonance method, forced non-resonance method, free decay method and wave velocity method. Regarding testing material damping, ISO International Organization for Standardization has formulated the test standard ISO6721-1994, and China has also formulated GJB981-1990 "Forced Non-resonance Dynamic Test Method for Viscoelastic Damping Materials", GB / T16406-1996 "Acoustic Acoustic Material Damping Performance Test Method" and GB / T18258-2000 "Damping Material Damping Performance Test Method". However, the above measurement methods cannot take into account the influence of the production process of the vibration component on the damping of the vibration component. Taking the diaphragm as an example, the damping measurement result of the flat measurement spline cannot correctly reflect the real material properties of the arc-shaped diaphragm.

[0005] The above information disclosed in the Background section is only for enhancement of understanding of the background of the present application and therefore it may contain information that does not constitute the prior art that is already known to a person of ordinary skill in the art. Summary of the invention

[0006] In view of this, the present invention provides a method and system for determining the damping parameters of a loudspeaker vibration component, which solves the problem of being unable to accurately measure the damping parameters of the material of the loudspeaker vibration component. The damping parameters of the vibration component material are calculated by reverse calculation through the simulation and measurement results of the attenuation time of the vibration displacement attenuation curve of the loudspeaker vibration component.

[0007] The present invention adopts the following technical solution:

[0008] A method for measuring damping parameters of a loudspeaker vibration component comprises the following steps:

[0009] S1. Establishing a simulation analysis model according to a geometric model of a loudspeaker vibration component;

[0010] S2. According to the set initial damping value of the vibration component, the simulation analysis model is transiently solved, the free vibration process of the vibration component under the specified boundary conditions is calculated, and the vibration displacement attenuation curve of the vibration component is obtained; the simulation attenuation time of the vibration component is read from the vibration displacement attenuation curve, and the simulation attenuation time is compared with the actual attenuation time of the vibration component to obtain a relative error;

[0011] S3, make tolerance judgment,

[0012] If the relative error is less than a preset tolerance, the set initial damping value is used as the actual damping value of the vibration component;

[0013] If the relative error is greater than or equal to the preset tolerance, the initial damping value is modified and step S2 is repeated until the relative error is less than the preset tolerance.

[0014] In a preferred embodiment, in step S1, the vibration components of the loudspeaker to be tested include a diaphragm, a diaphragm body, a diaphragm fold, a dust cap or a positioning support plate of the loudspeaker.

[0015] In a preferred embodiment, in step S1, the geometric model is obtained through design drawings or by scanning the contour of a diaphragm component sample.

[0016] In a preferred embodiment, step S1 specifically includes the following steps:

[0017] S101, importing a geometric model of the vibration component;

[0018] S102, defining the Poisson's ratio, density and Young's modulus of the vibration component;

[0019] S103, selecting a solid mechanics analysis mode, and setting an initial damping value of the vibration component material;

[0020] S104, defining a fixed boundary and a displacement boundary of the vibration component, and setting an initial displacement of the displacement boundary;

[0021] S105 , dividing the geometric model of the vibration component into a plurality of grid units to obtain a simulation analysis model of the vibration component.

[0022] In a more preferred embodiment, in step S104, the fixed boundary and the initial displacement are set to be consistent with the test conditions of the actual decay time of the vibration component.

[0023] In a more preferred embodiment, in step S104, the outer edge of the vibration component is set as a fixed boundary, and the central part of the vibration component is set as a displacement boundary.

[0024] In a specific and preferred embodiment, in step S104, the vibration component is a centering support, the outer edge of the centering support is set as a fixed boundary, and the inner edge of the centering support connected to the speaker voice coil is set as a displacement boundary.

[0025] In a specific and preferred embodiment, in step S104, the vibration component is a diaphragm, an outer edge of the diaphragm connected to a speaker bracket is set as a fixed boundary, and an inner edge of the diaphragm connected to a speaker voice coil is set as a displacement boundary.

[0026] In a specific and preferred embodiment, in step S104, the vibration component is a folded ring, the outer edge of the folded ring connected to the speaker bracket is set as a fixed boundary, and the inner edge of the folded ring connected to the diaphragm body is set as a displacement boundary.

[0027] In a specific and preferred embodiment, in step S104, the vibration component is a diaphragm body, the outer edge of the diaphragm body connected to the speaker bracket or the folding ring is set as a fixed boundary, and the center part of the diaphragm body connected to the voice coil is set as a displacement boundary.

[0028] In a specific and preferred embodiment, in step S104, the vibration component is a dust cap, the outer edge of the dust cap connected to the diaphragm or voice coil is set as a fixed boundary, and the central part of the dust cap is set as a displacement boundary.

[0029] In a preferred embodiment, in step S1, the simulation analysis model is established by software based on finite element theory or boundary element theory. Optionally, the software includes COMSOL Multiphysics, ANSYS or ABAQUS software.

[0030] In a preferred embodiment, the damping parameter determination method also includes an actual attenuation time measurement step of the vibration component located between step S1 or S2, and the actual attenuation time measurement step of the vibration component specifically includes obtaining an actual vibration displacement attenuation curve of the vibration component, and obtaining the actual attenuation time from the actual vibration displacement attenuation curve.

[0031] Specifically, a laser displacement sensor can be used to detect the change of the vibration displacement of the vibration component of the loudspeaker over time, and an actual vibration displacement attenuation curve of the vibration component can be drawn, and the time attenuation time of the vibration component can be obtained from the curve.

[0032] In a specific embodiment, a numerical simulation analysis model of the transient response of the displacement amplitude of the vibration component is first established, and an initial damping value is input. The attenuation time t of the vibration displacement attenuation curve of the vibration component is obtained by simulating the transient analysis method. ′ 0; then calculate t ′ 0 and the relative error δ between the decay time measurement result t0; finally, determine whether δ meets the requirement of being less than the tolerance δ0. If so, the damping value set in the simulation analysis model is the actual damping value of the vibration component. If not, it is necessary to adjust the damping value in the simulation analysis model and obtain an updated decay time through transient analysis simulation again until δ is less than the set tolerance, and finally reversely infer the damping parameters of the vibration component material. This method can accurately obtain the damping characteristics of the loudspeaker vibration component material and can be widely used in the design, development and manufacturing of loudspeakers.

[0033] The present invention also adopts the following technical solution:

[0034] A system for measuring damping parameters of a loudspeaker vibration component comprises a memory and a processor. The memory stores a computer program, and the processor implements a method for measuring damping parameters of a loudspeaker vibration component when executing the computer program.

[0035] The present invention adopts the above scheme and has the following advantages:

[0036] The present invention proposes a method for inferring the damping parameters of a loudspeaker vibration component (including a folding ring, a centering support plate, etc.) by obtaining the decay time of the vibration displacement decay curve of the loudspeaker vibration component through a numerical simulation method. Since the decay time of the vibration displacement decay curve of the loudspeaker vibration component can be accurately measured, the method can be used to conveniently and accurately obtain the real damping parameters of the loudspeaker vibration component material, which can be widely used in the design, development and manufacture of loudspeakers, and help electroacoustic engineers to more accurately grasp the material properties of the loudspeaker vibration component, thereby better designing and manufacturing loudspeakers. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0038] Figure 1 The figure is a flow chart of a damping parameter determination method according to an embodiment of the present invention.

[0039] Figure 2 The figure is a structural diagram of a centering support piece according to an embodiment of the present invention.

[0040] Figure 3 2D axisymmetric geometric model of a centering support according to an embodiment of the present invention, wherein only a half cross section of the centering support is shown.

[0041] Figure 4 The fixing boundary of the centering spider according to an embodiment of the present invention is shown.

[0042] Figure 5 The displacement boundary of the centering blade according to the embodiment of the present invention is shown.

[0043] Figure 6 The grid division structure of the centering blade according to the embodiment of the present invention is shown.

[0044] Figure 7 The simulated structure of the centering arm under a specified displacement according to an embodiment of the present invention is shown.

[0045] Figure 8 The simulation results of the vibration displacement attenuation curve of the custom piece according to the embodiment of the present invention are shown. DETAILED DESCRIPTION

[0046] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0047] This embodiment aims to solve the problem that the damping parameters of the material of the loudspeaker vibration component cannot be accurately measured. This embodiment reversely calculates the damping parameters of the material of the vibration component through the simulation and measurement results of the decay time of the vibration displacement decay curve of the loudspeaker vibration component.

[0048] Reference Figure 1As shown, the present embodiment proposes a method for determining the damping parameters of a loudspeaker vibration component, and the specific steps are as follows:

[0049] 1) Establish a simulation analysis model

[0050] a) Import the geometry model:

[0051] There are two ways to obtain the geometric model of the vibration component: (1) design drawings; (2) use a 3D geometric profile scanner or a coordinate measuring device to scan and obtain the geometric model of the vibration component. If you want to obtain higher geometric accuracy, the method described in method (2) is preferred.

[0052] Import the geometric model of the vibrating component into simulation analysis software, such as COMSOL Multiphysics, ANSYS or ABAQUS.

[0053] b) Define material parameters: Define the Poisson's ratio, density and Young's modulus of the vibration component material.

[0054] c) Set the physical field environment: Select the "Solid Mechanics" analysis mode and set the initial damping value of the vibration component material to β0.

[0055] d) Define boundary conditions: (1) Fixed boundary conditions: consistent with the measurement conditions for measuring the vibration displacement attenuation curve of the loudspeaker vibration component (the way the vibration component is fixed), the fixed boundary conditions are defined at the corresponding positions of the geometric model of the vibration component; (2) Displacement boundary conditions: consistent with the measurement conditions for measuring the vibration displacement attenuation curve of the loudspeaker vibration component (setting the initial displacement), the initial displacement is set at the corresponding positions of the geometric model of the vibration component.

[0056] Wherein, the outer edge of the vibrating component is set as a fixed boundary, the central part of the vibrating component is set as a displacement boundary and the initial displacement is set. If the measurement object is a centering support plate, the outer edge of the centering support plate is set as a fixed boundary, and the inner edge of the centering support plate connected to the speaker voice coil is set as a displacement boundary. If the measurement object is a diaphragm, the outer edge of the diaphragm connected to the speaker bracket is set as a fixed boundary, and the inner edge of the diaphragm connected to the speaker voice coil is set as a displacement boundary. If the measurement object is the folding ring of the diaphragm, the outer edge of the folding ring connected to the speaker bracket is set as a fixed boundary, and the inner edge of the folding ring connected to the diaphragm body is set as a displacement boundary. If the measurement object is the diaphragm body, the outer edge of the diaphragm body connected to the speaker bracket or the folding ring is set as a fixed boundary, and the central part of the diaphragm body connected to the voice coil is set as a displacement boundary. If the measurement object is a dust cap, the outer edge of the dust cap connected to the diaphragm or voice coil is set as a fixed boundary, and the central part of the dust cap is set as a displacement boundary.

[0057] e) Meshing: Divide the geometric model of the vibration component into several mesh units.

[0058] 2) Transient analysis solution;

[0059] a) In the numerical calculation software, select the transient solver;

[0060] b) Under a given material damping value of the vibration component, a transient solution method is used to simulate and calculate the free vibration process of the vibration component under specified boundary conditions to obtain the vibration displacement attenuation curve of the vibration component;

[0061] c) Read the decay time t from the vibration displacement decay curve of the above-mentioned vibration component ′ 0, and compared with the measured decay time t0, the relative error is recorded as δ.

[0062] 3) Tolerance judgment

[0063] a) When δ is less than the set tolerance δ0, it means that the damping value set in the simulation model is the actual damping value of the vibration component;

[0064] b) When δ is greater than the set tolerance δ0, the damping value needs to be updated and the above step 2) is repeated until δ<δ0.

[0065] When measuring the actual attenuation time of the vibration component, the actual vibration displacement of the vibration component is measured, or the attenuation curve of the actual vibration displacement over time is measured, and the actual attenuation time of the vibration component is obtained from the actual vibration displacement attenuation curve. Specifically, a laser displacement sensor can be used to detect the change of the vibration displacement of the vibration component of the loudspeaker over time, and the actual vibration displacement attenuation curve of the vibration component can be drawn, and the actual attenuation time of the vibration component can be read from the curve.

[0066] The loudspeaker is typically a dynamic loudspeaker. The vibration components of the loudspeaker mainly include a diaphragm and a voice coil. The vibration components of some loudspeakers may also include a centering support plate and / or a dust cap, etc. These vibration components constitute the vibration system of the loudspeaker. After the voice coil is connected to the electrical signal, it can drive the vibration system to reciprocate along a vibration axis (which can be the center line of the voice coil) under the action of the magnetic field of the loudspeaker magnetic circuit system, thereby realizing electroacoustic conversion. The outer edge (also called the hanging edge) of the diaphragm is fixed to the bracket of the loudspeaker, and the voice coil is connected to the middle of the diaphragm. In some embodiments, the diaphragm includes a diaphragm body and a folding ring. The diaphragm body can be a truncated cone-shaped cone. The outer edge of the diaphragm body is suspended on the bracket of the loudspeaker through the folding ring, and the voice coil is connected to the center of the diaphragm body. The middle part of the centering support plate is sleeved on the voice coil or connected to the diaphragm, and its outer edge is fixed to other components such as the bracket. The dust cap covers the outer side of the voice coil, and its outer edge can be fixed to the voice coil or the diaphragm.

[0067] The damping parameter measuring method of the above embodiment can be used to measure the damping parameters of a diaphragm, a diaphragm body, a folding ring, a centering support or a dust cap of a loudspeaker.

[0068] This embodiment also provides a system for measuring damping parameters of a loudspeaker vibration component, which includes a memory and a processor. The memory stores a computer program, and the processor implements the above-mentioned method for measuring damping parameters of a loudspeaker vibration component when executing the computer program.

[0069] Now, a centering support piece (such as Figure 2 As shown in FIG. 1 , the damping time of the vibration displacement attenuation curve is simulated using COMSOL Multiphysics software, and the damping of the centering support is obtained by reverse calculation by comparing it with the measured attenuation time to illustrate the method of the present invention. Figure 2 As shown, the centering support is connected between the voice coil and the bracket of the loudspeaker and has a corrugated body, that is, a plurality of staggered wave crests and wave troughs, at the outer edge of which the centering support can reciprocate up and down along the vibration axis of the loudspeaker. The method mainly comprises the following steps.

[0070] Step 1: Establish a simulation analysis model. The specific steps are as follows:

[0071] 1) Select simulation analysis module and add solver

[0072] like Figure 2 As shown, since the centering support is an axisymmetric structure, in order to facilitate calculation, in the COMSOL Multiphysics software, first select the 2D axisymmetric analysis environment, then select the solid mechanics module, and finally add two transient solvers (a. specified displacement transient solution; b. vibration displacement attenuation transient solution).

[0073] 2) Input the geometric model of the centering support

[0074] In the "Geometry" of the software, through the design drawings of the centering support (such as Figure 2 As shown), draw the 2D axisymmetric geometric model of the centering support, see Figure 3 .

[0075] 3) Define material properties

[0076] The density of the centering support is set to 1000kg / m 3 , Poisson's ratio is 0.33, and Young's modulus is 100MPa.

[0077] 4) Define boundary conditions

[0078] Simulate the state of the centering support when the speaker is working, that is, fix the outer edge of the centering support, measure the decay curve of the actual vibration displacement of the inner edge of the centering support over time, and obtain the actual vibration decay time. Because the outer edge of the centering support is fixed by the fixture when measuring the vibration displacement, a fixed boundary condition is defined at the outer edge of the geometric model of the centering support, such as Figure 4 Shown by medium thick lines.

[0079] 5) Set the initial displacement and initial damping value and tolerance

[0080] An initial displacement of 1 mm is set at the inner edge of the centering support. Figure 5 The initial damping β is set to 1e-4[s], and the tolerance δ0 is set to 5%.

[0081] 6) Grid division

[0082] Select the default physical field to control the mesh and click the Build all button. The result is as follows: Figure 6 shown.

[0083] Step 2: Transient Solution

[0084] Click "Study 1" to start transient solution, and simulate the displacement distribution of the centering support after the initial displacement of 1mm is set at the inner edge; for example, Figure 7 The vibration displacement at 0.5s is shown. The attenuation curve of the vibration displacement is obtained by post-processing, see Figure 8 .

[0085] Step 3: Tolerance determination

[0086] Assume that the attenuation process ends when the vibration displacement amplitude decays to 1% (i.e. 0.01 mm) of the initial displacement, and the end time of the attenuation process is recorded as the attenuation time t ′ 0. The vibration displacement attenuation time t0 (t0 = 0.356s) of the centering support is measured by the measurement system, and the relative error δ = (t ′ 0-t0) / t0.

[0087] 1) t obtained by the first simulation ′ 0 = 0.581s, corresponding to Much larger than the set tolerance δ0; change the damping value to 1.5 times of the initial damping and repeat the above step 2;

[0088] 2) t obtained by simulation ′ 0 = 0.453 seconds, corresponding to It is still greater than the set tolerance; change the damping value to 2.0 times the initial damping and repeat step 2 above;

[0089] 3) The t obtained by simulation ′ 0 = 0.373 seconds, corresponding to It is just less than the set tolerance, at which point the iteration process ends, and the damping parameter of the centering support is deduced to be approximately 2e-4s.

[0090] As shown in this specification and claims, the terms "comprises" and "includes" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0091] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0092] It is further understood that the terms "first", "second", etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, without departing from the scope of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0093] The above embodiment is only for illustrating the technical concept and features of the present invention, and is a preferred embodiment. Its purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention.

Claims

1. A method for measuring damping parameters of a loudspeaker vibration component, characterized in that: The steps include: S1. Establishing a simulation analysis model according to a geometric model of a loudspeaker vibration component; S2. According to the set initial damping value of the vibration component, the simulation analysis model is transiently solved, the free vibration process of the vibration component under the specified boundary conditions is calculated, and the vibration displacement attenuation curve of the vibration component is obtained; the simulation attenuation time of the vibration component is read from the vibration displacement attenuation curve, and the simulation attenuation time is compared with the actual attenuation time of the vibration component to obtain a relative error; S3, make tolerance judgment, If the relative error is less than a preset tolerance, the set initial damping value is used as the actual damping value of the vibration component; If the relative error is greater than or equal to the preset tolerance, the initial damping value is modified and step S2 is repeated until the relative error is less than the preset tolerance.

2. The method for measuring damping parameters of a loudspeaker vibration component according to claim 1, characterized in that: In step S1, the vibration components of the loudspeaker to be tested include a diaphragm, a diaphragm body, a diaphragm fold, a dust cap or a positioning support plate of the loudspeaker.

3. The method for measuring the damping parameters of a loudspeaker vibration component according to claim 1, characterized in that: In step S1, the geometric model is obtained through design drawings or by scanning the contour of a diaphragm component sample.

4. The method for measuring damping parameters of a loudspeaker vibration component according to claim 1, characterized in that: Step S1 specifically includes the following steps: S101, importing a geometric model of the vibration component; S102, defining the Poisson's ratio, density and Young's modulus of the vibration component; S103, selecting a solid mechanics analysis mode, and setting an initial damping value of the vibration component material; S104, defining a fixed boundary and a displacement boundary of the vibration component, and setting an initial displacement of the displacement boundary; S105 , dividing the geometric model of the vibration component into a plurality of grid units to obtain a simulation analysis model of the vibration component.

5. The method for measuring damping parameters of a loudspeaker vibration component according to claim 4, characterized in that: In step S104, the fixed boundary and the initial displacement are set to be consistent with the test conditions of the actual decay time of the vibration component.

6. The method for measuring damping parameters of a loudspeaker vibration component according to claim 4, characterized in that: In step S104, the outer edge of the vibration component is set as a fixed boundary, and the central part of the vibration component is set as a displacement boundary.

7. The method for measuring damping parameters of a loudspeaker vibration component according to claim 6, characterized in that: In step S104, the vibration component is a centering support, the outer edge of the centering support is set as a fixed boundary, and the inner edge of the centering support connected to the speaker voice coil is set as a displacement boundary; Or, the vibration component is a diaphragm, an outer edge of the diaphragm connected to a speaker bracket is set as a fixed boundary, and an inner edge of the diaphragm connected to a speaker voice coil is set as a displacement boundary; Or, the vibration component is a folded ring, the outer edge of the folded ring connected to the speaker bracket is set as the fixed boundary, and the inner edge of the folded ring connected to the diaphragm body is set as the displacement boundary; Or, the vibration component is a diaphragm body, the outer edge of the diaphragm body connected to the speaker bracket or the folding ring is set as the fixed boundary, and the central part of the diaphragm body connected to the voice coil is set as the displacement boundary; Alternatively, the vibration component is a dust cap, an outer edge of the dust cap connected to the diaphragm or the voice coil is set as a fixed boundary, and a central portion of the dust cap is set as a displacement boundary.

8. The method for measuring damping parameters of a loudspeaker vibration component according to claim 1, characterized in that: In step S1, the simulation analysis model is established by software based on finite element theory or boundary element theory.

9. The method for measuring damping parameters of a loudspeaker vibration component according to claim 1, characterized in that: The damping parameter determination method also includes an actual attenuation time measurement step of the vibration component located between step S1 or S2, and the actual attenuation time measurement step of the vibration component specifically includes obtaining an actual vibration displacement attenuation curve of the vibration component and obtaining an actual attenuation time from the actual vibration displacement attenuation curve.

10. A system for measuring damping parameters of a loudspeaker vibration component, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the method for measuring the damping parameters of the loudspeaker vibration component according to any one of claims 1 to 9 is implemented.

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