2014•Applied Mechanics and MaterialsRequires access

Finite Element Research on Damping of Viscoelastic Free Layer Damping Sheet

Yuan Chao He, Wen Lin Chen, Shi Wei Sun, Hao Li

Abstract

Based on modal strain energy method, the paper discusses viscoelastic free layer damping sheet, establishes the finite element model of it and obtains the natural frequencies and loss factor. Then the paper calculates the loss factor of viscoelastic free layer damping structure with engineering empirical formula, and compares the result with that obtained by finite element method. By comparing the two results, it indicates that the finite element method is effective in analyzing this kind of problems.

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Available abstract

Key concepts: Viscoelasticity, Loss factor, Finite element method, Constrained-layer damping, Structural engineering, Layer (electronics), Strain energy, Modal