Vibrational Energy Flow Model for a High Damping Beam with Constant Axial Force

Abstract

The energy flow analysis (EFA) method is developed to predict the energy density of a high damping beam with constant axial force in the high-frequency range. The energy density and intensity of the beam are associated with high structural damping loss factor and axial force and introduced to derive the energy transmission equation. For high damping situation, the energy loss equation is derived by considering the relationship between potential energy and total energy. Then, the energy density governing equation is obtained. Finally, the feasibility of the EFA approach is validated by comparing the EFA results with the modal solutions for various frequencies and structural damping loss factors. The effects of structural damping loss factor and axial force on the energy density distribution are also discussed in detail.

Measuring the Capacity of a Proposed Vibration Isolator Using Viscoelastic Sheets

“…In addition, typical highly damped elastomers exhibit poor recoverability. So the elastomer must be properly selected for an appropriate use as the case of those that are only used for axial forces [2].…”