Case study of hysteresis in shallow water sloshing

Abstract

An example of hysteresis for sloshing of water in a rectangular tank with a shallow water depth under large shaking close to its shifted resonant frequency is investigated. The motivation for the research is an investigation of an effectiveness of a tuned liquid damper as a structural control device for tall buildings or other devices that need damping devices to reduce unwanted oscillation due to external forces, such as in the case of buildings for wind or earthquakes.

Rannsökuð er heldnihegðun grunns vatns í tanki sem er undir stóru sveiflu álagi nálægt hliðraðri eigintíðni kerfisins.Hvati rannsóknarinnar er skoðun á virkni stilltra vökvadempara sem dempunarkerfi í háum byggingum eða öðrum tækjum þar sem þarf að dempa óæskilegar sveiflur vegna ytri krafta, til dæmis vegna vinds og/eða jarðskjálfta