Structural Control
To protect structures from vibrations, various damping systems are being researched. In this area, we have developed analytical surrogate models together with our research partners to describe different configurations of tuned liquid column dampers (TLCDs). These dampers are particularly used in high-rise buildings to protect them against wind-induced vibrations, for example. The developed models allow TLCDs to be optimally tuned to the structures. The active and semi-active variants of these dampers also require surrogate models of the structure, which enable real-time adjustment of the damper properties to the structural behavior during the operational phase.
(a) A five-story structure subjected to simultaneous force and ground excitation in any arbitrary lateral direction. The structure is equipped with two omnidirectional liquid dampers (O-TLCD 1 and 2). (b) Surrogate model of the structure-damper system with a reduced number of degrees of freedom for optimization and control tasks.
Mehrkian B, Altay O (2022). Omnidirectional liquid column vibration absorbers for multi-story buildings. Journal of Building Engineering. 62:105306. https://doi.org/10.1016/j.jobe.2022.105306