INVESTIGATING AND IMPROVING THE DYNAMIC CHARACTERISTICS OF OMNI -DIRECTIONAL ANEMOCONE USING VIBRATIONAL ANALYSIS

Abstract

Wind energy is being used for various other purposes for ages. In the modern era, it is being used to produce electricity. The aim of this work is to minimize vibrations in an Omni-directional Anemocone operating at its peak performance of 4m/s, while simultaneously improving its structural design to reduce weight and cost. The ODA represents an innovative wind energy solution that utilizes a unique funnel-shaped design to capture wind from all directions and direct it through a narrowing duct towards the turbine rotor to rotate it even at low outside wind speeds, resulting in increased energy capture efficiency and reduced vibrational amplitudes. However, this distinctive design introduces challenges related to vibrations, which can adversely affect the turbine's performance, structural integrity, and overall lifespan. To address this issue, a modal analysis technique is employed to identify and minimize resonance frequencies and modes in the Anemocone components. By conducting a detailed analysis of the duct structure, rotor assembly, and supporting infrastructure, the project aims to identify potential sources of vibrations and develop effective mitigation strategies. Furthermore, the project seeks to optimize the turbine's structural design to reduce weight while keeping costs minimal. This involves exploring different design configurations, material choices, and manufacturing processes to achieve a lighter and more efficient structure. The successful reduction of vibrations and weight will not only enhance the turbine's reliability and longevity but also contribute to increased energy conversion efficiency, decreased maintenance requirements, and improved economic viability. Overall, this work endeavors to advance the ODA technology, making it a more sustainable and economically competitive wind energy solution in the global push towards renewable energy adoption.