Experimental modal analysis of maritime composite panel

The investigation of dynamics of the real-life natural vibrations in structures, compared with the simulated by finite-element model frequency values and their variations, could be used for monitoring of the structural health of the composite materials. Experimental modal analysis of an example maritime composite panel is presented in the current work. The previously developed setup of the measurement system of the acceleration data for the structural health monitoring has been re-used. The results are analysed and compared with theoretically simulated results. The appropriate settings of modal analysis and their initial values for modal analysis techniques have been identified experimentally, to extract (estimate) the natural frequencies with reasonable accuracy and computational complexity.