摘要
通过能量法求解扬声器非线性振动系统的非线性微分方程的一阶近似解 ,得出幅频关系方程和谐波失真与频率关系曲线 ,并着重分析讨论了磁场的非线性对扬声器低频谐波失真跳跃的影响 ,得出了一些结论 .
This paper aimed to find the first-order approximate solution of the nonlinear motion of a loudspeaker driven by a stable voltage source by the energy method.An equation was obtained relating the forced vibration amplitude with frequency and the corresponding curves about total harmonic distortion versus frequency through calculation and analysis using MATLAB software.The paper also analyzed the influence of nonlinearity of magnetic field on the total harmonic distortion jumping of the loudspeaker, and came to several useful conclusions.
出处
《浙江师范大学学报（自然科学版）》
CAS
2003年第2期131-137,共7页
Journal of Zhejiang Normal University:Natural Sciences
基金
浙江省自然科学基金资助项目 ( 10 0 0 39)
