Adaptive Harmony Search for Tuned Liquid Damper Optimization under Seismic Excitation

In this study, the tuned liquid damper (TLD) device was optimized by the harmony search (HS) and adaptive harmony search algorithms (AHS). Using the harmony search algorithm, seismic excitations were directed at single and ten-story structures, and TLD parameters were optimized to minimize building movement. To improve design parameters, the optimization process was repeated by adapting the design factors of the harmony search algorithm. For this purpose, both the harmony memory consideration ratio (HMCR) and fret width (FW) were gradually reduced by providing an initial value, and optimum algorithm parameters were obtained. As a result of both optimizations, in a critical seismic analysis, the displacements of the adaptive harmony search showed smaller means and standard deviations than those of the classical harmony search.

Automated summary

In this study, the tuned liquid damper (TLD) device was optimized using the harmony search algorithm, and further improved by the adaptive harmony search algorithm. The results showed that the adaptive harmony search algorithm resulted in smaller displacements in the seismic analysis compared to the classical harmony search.