Experimental determination of the total vibratory power transmission in an elastic beam

A structure can simultaneously support different types of structural waves. For active control of vibration in a beam structure, it is necessary to consider all wave types simultaneously. Thus it is necessary to be able to measure the vibration amplitude associated with all wave types at any beam cross section as well as the total vibratory power transmission associated with all wave types. In this paper, the theoretical basis is outlined for a new method which allows measurement of all the required quantities using appropriately oriented and located accelerometers. Experimental results are also provided to illustrate the usefulness of this method.Jie Pan, Ruisen Ming, Colin H. Hansen and Robert L. Clar