Analytical and finite element design of structural damping using a parametric formulation for the damping material properties

摘要

Most engineering structural materials have little internal damping capabilities and therefore exhibit high resonant vibration levels. Structural damping material layers can be attached to the structural surface to decrease the vibration level, see Figure 1. The dynamic deformation in the structural damping material, due to the vibration, consumes vibration energy and transforms it into heat. Structural damping treatment can be applied successfully on most surfaces that vibrates and/or radiates sound, for example an oil pan or a fan cover.