Constrained Layer Damping (CLD)
Free-layer or extensional damping means that a damping material is glued onto the surface of a structure forming a damping layer. Energy is dissipated as a result of extension and compression of the damping material when the base structure is flexing during vibration.
The damping is dependant on the composition of a damping material and increases with damping layer thickness. Vibratec can offer several sorts of damping layers including visco elastic paint.
Constrained-layer damping (CLD) systems are used to increase damping in stiff structures. A “sandwich” is formed by laminating a damping layer in between two structural constraining base layers. When the system flexes during vibration, shear strains develop in the damping layer and energy is lost through shear deformation of the material. Varying layer thickness ratios permits optimizing system loss factors for various temperatures without changing the material’s composition.
Vibratec can offer several sorts of damping layers cut and punched according to client specification. Also visco elastic glue can be used for sandwich layering.
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Products
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Category
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Sandwich Layer CLD14 – CLD21
CLD 14 concists of a bitumen mat with self adhesive and paper release on both sides. Comes in 2 thicknesses;…
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Damping Glue DG-1000
The viscoelastic damping material, DG-1000, is a one component acrylic compound optimised to give a high composite damping in combination…
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Damping Glue DG-2000
DG-2000 is a water-based acrylic damping glue optimised for wooden based constrained layer damping applications. A one-component viscoelastic damping glue…
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Constrained Layer Damping in Kansas
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