Abstract
This paper examines the potential enhancements to the liquid damping of a uni-directional Liquid Column Vibration Absorber (LCVA) through the inclusion of orifice plates. In previous work it has been found that use of an LCVA in its original configuration generally has damping that is less than optimum. Use of the LCVA could therefore result in a structure that may have a lower than optimal damping, and as a consequence may experience re-excitation. The work examined in this paper shows the damping enhancements that are possible by using orifice plates. The effect of orifice location and size is considered. The work conducted is both numerical [3] and experimental. As such the numerical work is also validated by experimentation.
