Measurement of structure borne wave intensity, Part I: Formulation of the methods

This paper discusses methods for the measurement of structural wave intensities associated with various points in a wave field. The intensity measurements described are for flexural waves since these play an important role in the dynamic behaviour of typical structures. The necessary calculations require data obtained purely from the measurement of kinematical quantities. In addition, it is shown how the procedures for intensity measurements can be simplified in some special cases.