Structural health monitoring using self-excited ultrasonic vibrations

Abstract

The author has been developed the active structural health monitoring method using ultrasonic natural vibrations. In this paper, the structural health monitoring method using self-excited ultrasonic vibrations is introduced. First, the self-excitation method at natural frequencies is explained. Next, detection of contact-type failure based on nonlinear wave modulation is introduced. Finally, the prospects for development of structural health monitoring using neural network system is described.