Abstract:
In this paper, the theoretical method of calculating the axial sound pressure of square radiator has been deduced by using the numerical method.The response modes of square plate radiators with isosceles right triangular vibration surface on the outer side and rhombus in-phase vibration surface on the inner side have been selected as working modes, taking the square plate radiators with different geometrical sizes as examples, and the axial radiated sound pressure has been calculated respectively. The results show that the axial sound pressure of the radiator varies greatly with the increase of distance in the near field, and decreases slowly with the increase of distance in the far field. Finally, the 2# square radiator in the example has been tested, and the test results are basically consistent with the theoretical calculation.