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为更好地理解扬声器数值计算结果,解析研究了扬声器锥壳轴对称振动在整个工作频段一致有效的通解,这些解以特殊函数的形式给出。在典型低频段,弯曲解仅表现为边界层效应;在典型转点频段,弯曲解存在于转点的外侧域;在典型高频段,弯曲解覆盖了整个扬声器锥壳。无矩解和弯曲解在转点频段是耦合的,该耦合特性表明在此频段不可能消除分割振动。
In order to better understand the numerical results of loudspeakers, the uniform solution of the symmetry vibration of the loudspeaker conical shell in the entire working frequency band is analyzed. The solutions are given in the form of special functions. In a typical low frequency band, the bending solution manifests itself only as a boundary layer effect; in a typical turning point band, the bending solution exists in the outboard domain of the turning point; and in the typical high frequency band, the bending solution covers the entire loudspeaker cone shell. Momentum and bending solutions are coupled at the rotation frequency band, which indicates that it is not possible to eliminate split vibration at this frequency band.