Nonlinear behavior of electrodynamic loudspeaker suspension at low frequencies

作者：Feng ZiXin; Shen Yong^*; Heng Wei; Liu YunFeng

来源：Science China Physics,Mechanics & Astronomy, 2013, 56(7): 1361-1365.

DOI：10.1007/s11433-013-5112-7

• nonlinear stiffness
• surround
• spider

The suspension of electrodynamic loudspeakers includes a surround of the cone and a spider, and it is characterized by the mechanic stiffness in the lumped-parameter model. By solving the nonlinear differential equation of motion which considers the nonlinearity of suspension at low frequencies numerically and measuring different kinds of surrounds and spiders, the nonlinear behavior of suspension is theoretically and experimentally studied. Since the nonlinear stiffness of spiders and surrounds can be measured and fitted respectively before assembled into loudspeakers, which spider works best with which surround is studied. The performance of loudspeakers such as harmonic distortion based on the nonlinear parameters can be predicted.

• 出版日期2013-7
• 单位南京大学