Our goal is to solve the engineering problems that we encounter. It is important to determine which tools to use to get the most accurate results. If we compare the simulations shown in Figure 2 and Figure 3, we can see both simulations match with the real sample measurement displayed in Figure 4.įigure 18: This is a real speaker unit installed on an IEC baffle/on-axis measuresments. We can optimize the motor system to make Bl(x) curve as flat as possible and more symmetric. If not, the nonlinearity will generate harmonic distortion. Ideally, the current driving force should be constant. Simulation software can help with your design in a number of ways. For regular design work, if FEA is used for piston area, it will only be more time consuming and provide no benefit. The FEA tool can be used for all the frequency ranges from piston, breakup and the area in between. We also have to balance the accuracy and time cost. The more elements we set up, the more accurate the results. Based on the physics, the equations or formulas are established for each node in the element, to solve the equation we will get the result. The whole geometry is meshed into many elements, which can be in 2D or 3D. The complete Finite Element Analysis (FEA) model includes the stimuli, load, and geometry with appropriate the material properties, or physical boundaries. Figure 1: One of the circuit models converts electricity to movement.
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