Abstract
A zig-zag 1–3 viscoelastic composite (VEC) layer is designed for improved passive damping treatment of the vibrating structural beam. A zig-zag 1–3 VEC comprises by incorporating graphite blocks in zig-zag manner within the conventional viscoelastic material (VEM) layer. For the estimation of its damping capacity in the passive damping treatment of a beam, the corresponding finite element (FE) model is formed. To investigate the effect of inclusions in their zig-zag form compared to regular form, primarily, the optimal dimensional properties of corresponding configurations are obtained for the maximum damping of the beam. Then, their optimal modal loss factors and the performance in controlling the forced vibration of beam are compared. The results reveal that VEC with a zig-zag form of inclusions improves damping significantly compared to their regular form and conventional VEM. Moreover, this enhancement in damping appears due to the improvement in both extensional and shear counterparts of modal loss factor.
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Gupta, A., Reddy, R.S., Panda, S. (2022). Design of Zig-Zag 1–3 Viscoelastic Composite Layer for the Improved Passive Damping Treatment of Beam. In: Govindan, K., Kumar, H., Yadav, S. (eds) Advances in Mechanical and Materials Technology . EMSME 2020. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-2794-1_17
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DOI: https://doi.org/10.1007/978-981-16-2794-1_17
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