Vibration Transmission within Beam-stiffened Plate Structures Using Dynamic Stiffness Method

Abstract The dynamic stiffness method (DSM), which considers both in-plane and out-of-plane vibrations, is employed to investigate the vibration transmission of built-up plate structures. Two numerical examples are designated to demonstrate the capabilities of this method. First, representative transmission modes for a flat plate stiffened a single stiffener are presented, which would help us in composing physical images on wave propagation phenomenon. In addition, power input and power transmission within a two-plate structure are analyzed by following the context of in-plane and out-of-plane vibrations. This work is recommended to address in-depth the understanding of vibration transmission using the dynamic stiffness method, such as wave reflection, refraction, wave type conversion, and etc.