论文标题
杆辐射的声场
Sound field radiated by a rod
论文作者
论文摘要
我们研究了以最低的压缩模式振动的薄圆柱杆辐射的声学强度场。由于圆柱形对称性，在杆的径向平面上测量了发射场，这足以重建整个三维场。从激发压缩模式的一维近似开始，我们开发了一个简化的理论波方程，该方程允许为发射波场提供半分析溶液。实验结果与半分析溶液之间的一致性是雄辩的。
We study the acoustical intensity field radiated by a thin cylindrical rod vibrating in its lowest compressional mode. Due to the cylindrical symmetry, the emitted field is measured in a radial plane of the rod which is sufficient to reconstruct the full three-dimensional field. Starting from the one-dimensional approximation of the excited compressional mode, we develop a simplified theoretical wave equation which allows for a semi-analytical solution for the emitted wave field. The agreement between the experimental results and the semi-analytical solution is eloquent.
