DESIGN & DEVELOPMENT OF LOW-FREQUENCY VIBRATION ISOLATOR ESPECIALLY QUASI ZERO STIFFNESS (QZS) VIBRATION ISOLATOR

Abstract

The project aims to design and develop an innovative low-frequency vibration isolator incorporating Quasi-Zero Stiffness (QZS) principles to effectively attenuate vibrations in diverse mechanical systems. Low-frequency vibrations, prevalent in sensitive equipment, machinery, and structures, often present challenges for traditional isolators due to their inability to provide sufficient damping. Leveraging QZS characteristics, which entail high static stiffness alongside low dynamic stiffness, the proposed isolator seeks to overcome this limitation by providing enhanced vibration isolation performance at low frequencies. The project entails several phases, including conceptualization, detailed design, and numerical testing. Innovative mechanical configurations are explored and optimized to achieve the desired QZS behavior, allowing for effective vibration mitigation across a broad frequency spectrum. Building the design using SolidWorks and numerical analysis using Finite Element Method (FEM) in ANSYS workbench, the proposed isolator aspires to emerge as a stalwart solution, fortifying the reliability and efficacy of mechanical systems across multifaceted industrial landscape experimental validation will be employed to assess the isolator's performance under various low-frequency excitations representative of real-world operating conditions. Especially this project's ultimate goal is to deliver a robust, efficient, and practical vibration isolation solution specifically tailored for low-frequency applications, contributing significantly to advancements in vibration control technology and enhancing the reliability and performance of mechanical systems in diverse industrial sectors.