科研之友
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摘要
A simulation method relying on the finite and infinite element techniques and a post-processing routine is introduced in this paper for the calculation of self and mutual radiation impedances of horns and acoustical resonators. The proposed procedure can be applied for the evaluation of the frequency dependent coupling impedance matrix of an arbitrary number of ducts in an arbitrary geometrical arrangement. The resulting impedance matrix can be utilized in a one-dimensional low-frequency waveguide model in order to calculate the input impedance or admittance function of the system. The applicability and usefulness of the proposed methodology is demonstrated by multiple simulation cases.
- 出版日期2018-4
