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Steel and Composite Structures   Volume 8, Number 4, August 2008, pages 281-296
The applications and conduct of vibration equations for constrained layered damped plates with impact
G.M. Luo, Y.J. Lee and C.H. Huang

Abstract     [Buy Article]
    Visco-elastic material and thin metals were adhered to plate structures, forming the composite components that are similar to the sandwich plates, called constrained layered damped (CLD) plates. Constrained layer damping has been utilized for years to reduce vibration, and advances in computation and finite element analysis software have enabled various problems to be solved by computer. However, some problems consume much calculation time. The vibration equation for a constrained layered damped plate with simple supports and an impact force is obtained theoretically herein. Then, the results of the vibration equation are compared with those obtained using the finite element method (FEM) software, ABAQUS, to verify the accuracy of the theory. Finally, the 3M constrained layer damper SJ-2052 was attached to plates to form constrained layered damped plates, and the vibration equation was used to elucidate the damping effects and vibration characteristics.
Key Words
    visco-elastic; constrained layered damped (CLD); finite element method (FEM).
G.M. Luo, Y.J. Lee and C.H. Huang : Department of Engineering Science and Ocean Engineering, National Taiwan University

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