A review on various configurations of the passive tuned liquid damper

Abstract

Passive tuned liquid dampers, being cost-effective, easy to implement, and reliable structural vibration control devices, have received significant attention from designers and researchers. Considerable works devoted to the extraction of higher damping, increase in volumetric efficiency, improvement in architectural adaptability, and use in a large spectrum of structures have led to the development of a variety of configurations of passive tuned liquid dampers. Rigorous research efforts are being devoted to the utilization of different forms of tuned liquid dampers for the vibration control of buildings, bridges, chimneys, wind turbines, etc. However, till now, only a few varieties of tuned liquid dampers have been implemented in real-life structures, while the others require further refinement. This necessitates the present work, through which a systematic review on tuned liquid dampers of various configurations for structural response reduction is presented, with a focus on the design of the dampers. To organize the review in a structured manner, the large family of tuned liquid dampers is categorized into five groups based on their energy dissipation mechanism, namely the tuned sloshing damper, tuned liquid column damper, combined tuned sloshing damper-tuned liquid column damper system, compliant liquid damper, and liquid damper with submerged tuned oscillator. The modeling, analysis, design, and performance-related aspects of the different varieties of tuned liquid dampers are covered. The advantages and applicability of the different types of tuned liquid dampers are highlighted along with their real-life installations. The current gaps in the development of the various tuned liquid damper configurations and scope of future developments are also identified.

Self-tuning vibration reduction study of magnetic fluid rolling-ball damper based on PSO-FUZZY-PID

“…As known from Figure 15(a), the experimental platform involves experimental devices mainly including a signal generator, power amplifier, signal processor, shaker, STMFRBD vibration system, self-tuning control circuit, DC power supply, acceleration sensor, etc. Among them, the STMFRBD vibration system consists of a single free frame structure and STMFRBD, and the MF (provided by Beijing Shenran Magnetic Fluid Company) is a kerosene-based ferric tetroxide MF with a density of 1.76 g/cm 3 . Two acceleration sensors are connected to the top of the structure.…”

“…2 The current research on dampers for towering structures generally falls into three categories. The first type of passive dampers, 3 for instance, tuned mass dampers, 4 tuned rolling-ball dampers, 5 tuned liquid dampers. 6 This type of damper has a simple structure and does not consume external energy, but it cannot tune its operating state according to the complex excitation, which leads to a poor damping effect.…”

Review of Vibration Control Strategies of High-Rise Buildings

“…TLD is a dynamic vibration absorber that uses the motion of shallow liquid (sloshing) in a partially filled container to dissipate the vibration energy. The geometry of the tank that holds the liquid and its viscosity is selected to have a frequency close to the fundamental frequency of the structure [ 72 , 73 , 74 , 75 ]. Utilizing flow-damping elements like screens or posts inside the container may cause the sloshing liquid’s energy dissipation to increase.…”

“…A 4-story high, 50,000-gallon (230-ton) water tank set to the appropriate frequencies constitutes each TLCD. Konar and Ghosh [ 75 ] presented a thorough analysis of the vibration control using several types of tuned liquid dampers.…”

Development and design of a deep tank damper with submerged suspended plate

“…Despite the development of several different configurations of the TLD, it is conventionally associated with the tank damper, in which liquid resides in a circular or rectangular vessel, though other shapes have also been used. Tank dampers are chiefly of three types; (a) shallow tank damper, (b) intermediate-depth tank damper, and (c) deep tank damper (DTD) (Konar and Ghosh, 2022a). This classification is based on the type of sloshing wave produced by the liquid within the tank when laterally excited.…”