The Influence of Damping on Free Response. Shown below are three time histories for the free response of a single-DOF system with zero initial stretch in the spring and an initial velocity downward.

The Influence of Damping on Free Response. Shown below are three time histories for the free response of a single-DOF system with zero initial stretch in the spring and an initial velocity downward.

Flutter is a dynamic aeroelastic instability caused by interaction of unsteady aerodynamic forces with elastic vibration of the structure. At the so-called flutter critical velocity, the damping ratio ...

The results of a recent design optimization draw a positive picture: Depending on the vibration mode and acceptable weight penalty, damping ratios up to 10 % seem to be achievable. In this way, not ...

The natural frequencies and damping ratios were identified from the estimated acceleration Power Spectral Densities and correlated with the wind data.

Lead author Daniel Gonzalez-Fernandez from Bristol’s School of Civil, Aerospace, and Design Engineering explained: “After evaluating the identified modal parameters in relation to a series of factors, ...