A Numerical Simulation Analysis Method for the Nonlinear Characteristics of the Stiffness Coefficient of the Loudspeaker Strut
A technology of centering support and stiffness coefficient, which is applied in the fields of electrical digital data processing, instruments, and special data processing applications, etc., can solve the problems of long development cycle and high cost, speed up the design progress, reduce design costs, and overcome design problems. The effect of deficiency
Active Publication Date: 2015-12-09
嘉善恩益迪电声技术服务有限公司 +1
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[0007] The main problems to be solved in the present invention are: (1) the existence of the empirical method must repeatedly copy samples and the problem of defects in the centering support can only be found after the centering support sample is produced; (2) the development cycle is long when repeating the sample , the problem of high cost; (3) it is difficult to determine whether the change in the value of the stiffness coefficient in the improved sample is due to the structure of the damper itself or the problem of the process; (4) other numerical simulation analysis methods do not simultaneously consider the geometry Influence of Nonlinearity and Material Nonlinearity on Nonlinear Characteristics of Stiffness Coefficient of Spacer
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[0042] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0043] Taking a circular strut as an example, the present invention introduces a numerical simulation analysis method, which can analyze the deformation characteristics of the strut under the action of axial force load, and then obtain the stiffness of the strut. Non-linear properties of degree coefficients. The implementation process is as follows figure 1 Shown, the steps of the present invention are as follows:
[0044] Step 1: Build a geometric model (1).
[0045]Use three-dimensional drawing software (such as Solidworks, Pro / E, etc.) or directly draw the three-dimensional (3D) geometric model diagram of the speaker strut in the finite element analysis software (101). figure 2 It is a 3D geometric model diagram of a loudspeaker strut. Since the strut in the case is circular, it can be simplified to a 2D model. image 3 It is a 2D cross...
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The invention discloses a numerical simulation analysis method for carrying out numerical simulation analysis on the nonlinear characteristic of stiffness coefficient of a centering disk of a loudspeaker and belongs to the field of loudspeaker design. The method completes static analysis by establishing a geometric model of the centering disk and defining a nonlinear material module and considering the geometric nonlinearity through a finite element method and can obtain axial displacement of the centering disk under the action of different loading forces, so that a changing curve of the stiffness coefficient of the centering disk along with the axial displacement can be obtained by post-processing. By the method, the nonlinear characteristic K(x) of the centering disk can be analyzed and obtained on the initial stage of design, i.e. before a sample is not produced and manufactured, so that the centering disk is rapid and convenient to design and manufacture.
Description
technical field [0001] The invention belongs to the field of loudspeaker design, and relates to a simulation analysis method for a loudspeaker centering strut, in particular to a numerical simulation analysis method for the nonlinear characteristics of the stiffness coefficient of a loudspeaker centering strut. [0002] Using this method to analyze the stiffness coefficient of the strut of the loudspeaker, the nonlinear characteristics of the stiffness coefficient can be obtained, that is, the stiffness coefficient of the strut under different deformation conditions, and the stiffness coefficient is represented by K(x), This method can be widely used in the design of loudspeaker suspension system. Background technique [0003] The centering piece is the basic component of the loudspeaker. It is generally made of impregnated fabric, rubber or injection-molded special-shaped plastic material. Its function is mainly to ensure the correct position of the voice coil in the magnet...
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IPC IPC(8): G06F17/50
Inventor陆晓温周斌徐楚林李宏斌计敏君
Owner嘉善恩益迪电声技术服务有限公司