Mutual Radiation Impedance of Square and Rectangular Pistons in a Rigid Infinite Baffle

Abstract

An integral solution has been obtained for the mutual radiation impedance of two identical rectangular or square pistons vibrating in an infinite rigid plane. These expressions are relatively easy to evaluate by machine computations. Numerical values of the radiation impedance are given for square pistons of dimension ka = 12, 1, and 2, separated by 12⩽kd⩽18. For larger pistons, the orientation of the pistons with respect to each other becomes important. This is demonstrated for the case ka = 5.