Simulation of characteristics of tuned liquid column damper using a potential-flow method

摘要: Abstract A tuned liquid column damper (TLCD) for the control of vibration tall buildings comprises two vertical columns connected by a horizontal cross-over duct same width. variation this, with different in width, is denoted as absorber (LCVA). Both TLCDs and LCVAs have been shown to be effective passive devices long their vibrational characteristics are properly designed relation those building which they installed. In previous research, prediction natural frequency these dampers based on assumption that velocity within each leg constant transition between flows occurs at single point. This valid TLCD LCVA when widths both small compared overall dimensions damper. Different researchers also suggested empirical modifications this TLCDs, resulting estimates system’s frequencies. For limited space, it will necessary configure width not respect damper, configuration has yet investigated research. case, relatively large zone cannot ignored. numerical potential-flow method, known panel utilized simulate distribution fluid inside dampers. The method allows an integral equation potential formulated solved numerically determine flow. These solutions verified obtained from existing experimental results. addition, three full-scale models experimentally under free-vibration, spectral prescribed base excitations. results lead improved over wide range configurations, essential controlling problems optimum performance buildings.