Modelling and assessing the performance of tuned liquid damper for vibration control

Abstract

In an era defined by the pursuit of safer and more resilient structures, this thesis stands as a testament to the power of innovation in structural engineering. Focused on the pivotal challenge of mitigating structural vibrations induced by dynamic loads, our investigation delves into the transformative potential of Tuned Liquid Dampers (TLDs). Through meticulous analysis and simulation, we unveil a set of findings that redefine the theory of vibration control. The voyage begins with a thorough investigation of several TLD configurations, each intended to reveal characteristics of their dampening effectiveness. From the straightforwardness of flat base TLD’s to the complexity of arc bottom shape variants, a symphony of designs emerges. These TLD’s geometrical details are not just for cosmetic purposes; they also have significant effects on how well they can control vibrations. The finite element simulations were conducted using ANSYS software with its intuitive GUI for model setup. Among the findings that emerge, the flat base TLD asserts its prowess in effectively reducing structural deformations. However, this study delves further, embracing the dynamic interplay between fluid and structure. Sloped bottom TLDs enter the stage, offering enhanced damping capabilities and a glimpse into the harmonious fusion of form and function. The arc bottom shape TLDs emerge as the true prime mover, each showcasing its unique signature. The Circular Arc TLDs, elegant in their simplicity, engage in a dance with liquid dynamics to curtail vibrations. Yet, it is the Parabolic Arc TLDs that steal the spotlight, exhibiting unparalleled performance in vibration reduction. This discovery reignites the dialogue on geometric influence and paves the way for versatile structural solutions. Amidst these revelations, the Square Shape TLD emerges as a indicator of adaptability. Offering respite from the limitations of single-directional seismic scenarios, this design bridges the gap between aesthetics and function. The symmetrical geometry embraces seismic threats from all angles, epitomizing innovation's potential to reshape structural resilience. In conclusion, this thesis transcends the realm of academic inquiry. It holds the promise of revolutionizing architectural practices, steering us toward structures that endure dynamic forces with grace. We embark on a journey beyond, where the synthesis of geometry, fluid mechanics, and structural dynamics propels us toward an era defined by adaptable, safe, and resilient built environments.