Constrained-layer damping

CLD Gypsum Panel

Constrained-layer damping is a mechanical engineering technique to suppress vibrations. Typically a viscoelastic or other damping material, is sandwiched between two sheets of stiff materials that lack sufficient damping by themselves. The result is that any vibration generated on either side of the constraining materials (the two stiffer materials on the sides) is suppressed by the viscoelastic material, by turning it into heat.

References

• Kerwin, Edward M. (1959). "Damping of Flexural Waves by a Constrained Viscoelastic Layer". The Journal of the Acoustical Society of America. 31 (7): 952–962. doi:10.1121/1.1907821.
• Baz, A.; Ro, J. (1995). "Optimum Design and Control of Active Constrained Layer Damping". Journal of Mechanical Design. 117 (B): 135–144. doi:10.1115/1.2836447. eISSN 1528-9001. ISSN 1050-0472.

External links

• Passive Viscoelastic Constrained Layer Damping Application for a Small Aircraft Landing Gear System An engineering Master's thesis