ENERGY DISSIPATION CHARACTERISTICS OF VELOCITY-DEPENDENT DAMPER BY DIFFERENCE IN DIRECTION OF EXCITATION

Abstract

Velocity-dependent dampers have high ability to control responses for not only large but also small vibration. The direction of deformation in these dampers is generally limited to one direction. In the case that direction of damper’s axis coincides with direction of excitation, damper dissipates energy most efficiently. However in practice it is relatively rare that the direction of damper’s axis coincides with that of excitation. This paper presents that the energy dissipation of velocity-dependent dampers that have nonlinear relationships between velocity and damping force is greatly influenced by difference in excitation.