Identification of a cavity in an elastic rod in the analysis of transverse vibrations

The direct and inverse problems of the steady-state transverse vibrations of a cylindrical rod with a defect in the form of a cavity of small relative size are considered. An approach to determining the location and volume of the cavity of arbitrary shape is proposed. Results of computational experiments are analyzed. __________ Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 49, No. 6, pp. 152–158, November–December, 2008