Analysis of Tuned Liquid Damper for Controlling the Vibrations in Wind Turbine Structures

Abstract

The development sector's recent trends necessitate larger, lightweight buildings which are also versatile as well as adaptable and have a reduced damping value. This raises the chances of default and, as a result, reliability issues. There are many methods available presently to reduce structural vibration, with the use of TLD being one of the more recent ones. The purpose of this research was to see how successful TLD is in reducing structural vibration. The use of a tuned liquid damper (TLD) composed of 2 spherical vessels partly full of liquid is examined as a cost-effective way to minimize air vibrations in wind generators. To study its effectiveness on the shaking table, a 0.0005 (1/20th) sized test prototype was developed. To replicate the winds transient performance across various load scenarios, three groups of identical surface accelerators were entered.  On the shaking table, a variety of forced and free vibrating studies were conducted. The testing findings showed that the hemispheric Tuned Liquid Damper could effectively increase the testing prototype's dampening capability. In this study, Wind Turbine prototype was studied under different parameter and conditions including Parking, Over speed and Extreme Operating Gust to validate the model performance and it was concluded that the spherical TLD may significantly increase the turbines structure's effectiveness.