Tuned liquid dampers for multi-storey structure: numerical simulation using a partitioned FSI algorithm and experimental validation

摘要: Wind-induced and earthquake-induced vibrations of structures such as super-tall towers bridges can be efficaciously controlled by tuned liquid dampers (TLDs). This work presents a numerical simulation procedure to study the performance TLDs–structure system through sigma ( $$ \sigma $$ )-transformation-based fluid–structure coupled solver. For this, ‘C’-based computational code has been developed. The structural equations, which are with fluid equations in order achieve transfer sloshing forces structure for damping, solved fourth-order Runge–Kutta method, while using finite-difference-based sigma-transformed algorithm. Different iterative error schemes used optimize larger convergence rate higher accuracy. validation, few experiments conducted three-storey TLDs arrangement. present results response TLD-installed match well experimental results. minimum displacement is observed when resonance condition achieved proper tuning TLDs. Since real-time excitations random nature, under excitation also carried out Bretschneider spectrum generate input wave.