1D Joint Acceptance**

(in work ... demonstration of HTML plotting using Google Charts and Java Script)

This compares the (blue) structural wave length to the (red) acoustic wave length. The Joint Acceptance factor ranges from 0 to 1.27. A Joint acceptance (J1d) of 0.0 means the acoustic wave has no influence on the structure. A J1d=1.0 means there is a perfect match between the acoustic wave and the structural wave shapes. In this example, changing the structural frequency to 225.5 Hz (as an example) will produce 1D joint acceptance of 1.0.