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首页> 外文期刊>Journal of the Audio Engineering Society >HARMONIC BALANCE METHOD FOR ESTIMATING THE NONLINEAR PARAMETERS OF ELECTRODYNAMIC DIRECT-RADIATOR LOUDSPEAKERS
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HARMONIC BALANCE METHOD FOR ESTIMATING THE NONLINEAR PARAMETERS OF ELECTRODYNAMIC DIRECT-RADIATOR LOUDSPEAKERS

机译：电磁直接辐射扬声器非线性参数的谐波平衡方法

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摘要

The low-frequency harmonic distortion of electrodynamic direct-radiator loudspeakers is due to the nonlinearities in the diaphragm, suspension, damping, and magnetic flux. in order to estimate such electromechanical nonlinear parameters related to harmonic distortion, a polynomial model for diaphragm displacement is adopted to describe the driving and spring forces. Each of the polynomial coefficients is evaluated by using the principle of harmonic balance. Numerical simulations are conducted for a typical loudspeaker with nonlinearities. Calculated results are in good agreement with measured diaphragm displacement curves. The present method can be used effectively as one of the methods to estimate the contribution to harmonic distortion of individual nonlinear loudspeaker parameters. [References: 9]
机译：电动直接辐射扬声器的低频谐波失真是由于膜片，悬架，阻尼和磁通量的非线性所致。为了估算与谐波畸变有关的机电非线性参数，采用膜片位移的多项式模型来描述驱动力和弹力。通过使用谐波平衡原理来评估每个多项式系数。对具有非线性的典型扬声器进行了数值模拟。计算结果与测得的膜片位移曲线吻合良好。本方法可以有效地用作估计单个非线性扬声器参数对谐波失真的贡献的方法之一。 [参考：9]

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