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阐述了低频腔体声场的声传递函数的概念 ,提出了一种实验求解声传递函数的方法 ,即在腔体壁面各测点的力与速度、腔内关键位置力与声压之间频响函数测量的基础上 ,求解声传递函数的线性方程组。由一矩形腔体声传递函数的求解实例 ,证明了这种声传递函数求解方法的可行性。
The concept of acoustic transfer function in low-frequency cavity sound field is expounded. A method of solving acoustic transfer function experimentally is proposed, that is, the force and velocity at each measuring point on cavity wall, the frequency response between key position force and sound pressure in cavity Based on the measurement of the function, a linear system of equations of the acoustic transfer function is solved. An example of the solution of the acoustic transfer function of a rectangular cavity is presented, which shows the feasibility of the solution of the acoustic transfer function.