ICMER2024 - Experimental Study: Effect of Resonator Parameter Upon the End Correction for Quarter Wavelength Resonator Tube

Abstract

Acoustic resonators are fundamental in various engineering applications, from musical instruments to advanced sound filtering systems. Their ability to amplify and sustain specific frequencies has made them indispensable in modern technology. This study presents a comprehensive parametric investigation of acoustic resonators, aiming to identify the effect of parameter changes on the acoustical length and standing wave that significantly influence their performance and efficiency of acoustic energy harvesting design. The research methodology involves experimental analysis to explore the effects of various geometric on the resonator's acoustic end correction and standing wave. The study focuses on traditional Quarter wavelength resonators, and parameters such as resonator shape, size, length, and backplate thickness are systematically varied and studied. The findings of this parametric study provide valuable insights into the optimisation of acoustic resonators for energy harvesting purposes. The impact of parameters like tube length 30cm and diameter 8cm on standing wave is quantified, enabling engineers to tailor resonator designs to meet precise requirements. Other parameters are also vital in constructing a resonator tube that can deliver optimal output when considering other usage circumstances. Furthermore, novel design concepts that demonstrate improved performance compared to conventional resonators are proposed, expanding the possibilities for optimum output of acoustic energy harvesting systems.