This study investigates the dynamic behavior of multilayer Constrained Layer Damping (CLD) structures, with a specific focus on employing numerical simulations (ANSYS), the study meticulously compares results with experimental outcomes, utilizing the finite element method (FEM) and the well-established Ross-Kerwin-Ungar (RKU) model. Experimental modal analysis on a vibration shaker serves to validate the FEA findings. The research reveals valuable insights into the damping performance of various constraining layer materials. These results underscore the significance of considering the frequency-dependent behavior of materials when selecting appropriate constraining layers. By shedding light on the dynamic behavior and damping performance of multilayer CLD structures with different constraining layers, this study contributes to the effective mitigation of vibrations in various engineering applications. This endeavor will enhance the understanding and application of constraining layer materials for effective structural vibration control, paving the way for improved engineering solutions in the future.

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