Factors influencing the effect of attached mass on dynamic behavior of laminate composite plates using Taguchi technique

Abstract

The present study addresses the effect of attached mass on dynamic properties of composite laminate plates, under flexural vibration, for clamped-free-free-free boundary conditions. Furthermore, factors influencing the effect of attached mass on natural frequencies of laminate composite are studied using the Taguchi method. The considered factor parameters are: attached mass weight, attached mass locations from the clamped edge, staking sequences, and number of layers. The results of this study indicate that the dynamic characteristics of the laminate composite plates are sensitive to the attached mass, where the natural frequencies are found to be inversely proportional to the mass weight. The results was found that the locations of the attached mass and number of layers were the most important factors affecting the natural frequencies, where the location of the masses fell into the antinodes and into the nodal area of vibration, respectively. In addition, the paper presents a good correlation between the numerical results obtained by the ANSYS software and those obtained experimentally.

Modal damping ratio of symmetric laminate composite under the effect of attached mass using experimental design

“…The results show that the attached mass reduces the frequencies of the sandwich plate. A. Rahmane et al [16] presented a numerical and experimental method for evaluation the effect of attached mass on dynamic properties of composite laminate plates. The study examines the effect of various factors such as number of layers, position of attached mass and fiber orientation) on frequencies.…”