Initial Investigation of Energy Finite Element Validation on High-Frequency Flexural Vibration of Stiffened Thin Orthotropic Plates

Abstract EN

Energy finite element analysis (EFEA) has unique advantages in solving high-frequency dynamic responses of orthotropic structures, due to its ability to obtain detailed local response information.

In order to accurately predict high-frequency vibration response of the stiffened orthotropic plate, EFEA theory on the propagation of bending wave in the orthotropic structure and the energy transfer coefficient which express the energy transfer at the stiffener was investigated.

Based on the EFEA theory presented, high-frequency dynamic responses of a stiffened orthotropic plates were predicted.

Furthermore, tests were done for the same problem, and differences between prediction and test were discussed.

Finally, the future works were pointed out.