...声传递矩阵； 边界元方法； 辐射功率； 辐射效率 中图分类号： TB535 文献标识码： A DOI 编码： 10.3969/j.issn.1006-1335.2014.[gap=1573]Key words : acoustics ; acoustic radiation mode ; acoustic transfer matrix ; boundary element method (BEM) ; radiation power ; radiation efficiency ..
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基于声辐射模态分析，建立了外部场压和结构表面振动速度之间关系的传递矩阵。
Based on the acoustic radiation mode analysis, the transfer matrix relating the pressure at every field point to normal component of surface velocity is formed.
本文根据消声器在实际工作过程中声管内温度发生变化的特点，推导了考虑气流和线性温度梯度情况下刚性直管的声场传递矩阵。
The transmission matrix of rigid straight pipe with mean flow and linear temperature gradient is established according to the actual case of silencer.
本文通过声波在穿孔声管中传播特性的研究，导出了声波在穿孔声管中传播的声场传递矩阵。
The sonic field transmission matrixes of perforated absorbent pipe is given after the transmission performance of perforated pipe is studied.
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