Tunable Helmholtz Resonators Using Multiple Necks [PDF]
Micromachines, 2023 One of the uses of Helmholtz resonators is as sound absorbers for room acoustic applications, especially for the low frequency range. Their efficiency is centered around their resonance frequency which mainly depends on elements of their geometry such as
Georgios Eleftherios Stavroulakis +1 more
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Noise filter using a periodic system of dual Helmholtz resonators [PDF]
Scientific ReportsThis study investigates noise reduction using a periodic arrangement of dual Helmholtz resonators and explores the introduction of defects within this periodic structure. The transfer matrix method was employed to carry out theoretical research.
Zaky A Zaky +2 more
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Acoustic metasurface constructed by periodic parallel Helmholtz resonators for gas sensing applications [PDF]
Scientific ReportsThis study investigates a compact acoustic metasurface of periodic parallel Helmholtz resonators with a resonator defect located in the middle of the structure for gas-sensing applications.
Zaky A. Zaky +5 more
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Design, Manufacturing, and Acoustical Analysis of a Helmholtz Resonator-Based Metamaterial Plate
Acoustics, 2021 Acoustic metamaterials are materials artificially engineered to control sound waves, which is not possible with conventional materials. We have proposed a design of an acoustic metamaterial plate with inbuilt Helmholtz resonators.
Arpan Gupta
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Novel Helmholtz resonators parallel to lateral closed resonators for sensing applications [PDF]
Scientific ReportsThis study looks into the design of Helmholtz resonators along with lateral closed resonators for sensing applications, mainly for gas sample detection. A periodic parallel arrangement of both Helmholtz resonator and closed resonators was studied, while ...
Zaky A. Zaky +5 more
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FEM Investigation of a Multi-Neck Helmholtz Resonator
Applied Sciences, 2023 An increasingly significant area of research with several applications in numerous disciplines is that of multi-neck Helmholtz resonators. This research is set to explore the accuracy and applicability of the finite element method (FEM) for the ...
Nikolaos M. Papadakis +1 more
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Journal of Low Frequency Noise, Vibration and Active Control, 2023 Helmholtz resonators are widely applied in industries to reduce the transmission of unwanted noise and passively attenuate tonal noise in pipes/ducts. For example, internal combustion engines take advantage of Helmholtz resonators by combining air box ...
Zhiguo Zhang, Chenzhen Ji, Yin Mya Win
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Over-coupled Helmholtz-like optical resonator for enhanced infrared spectroscopy of molecules [PDF]
EPJ Web of Conferences, 2023 Electromagnetic Helmholtz resonators are able to strongly and homogeneously enhance an electric field in relatively large volumes, making them attractive for applications to surface enhanced infrared absorption spectroscopy of molecules.
Paggi Laura +8 more
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Lightweight panels based on Helmholtz resonators for low-frequency acoustic insulation [PDF]
E3S Web of Conferences, 2023 In this study, we propose a novel lightweight acoustic metamaterial panel composed of coupled Helmholtz resonators, designed to insulate low-frequency broadband noises effectively.
Lemkalli Brahim +3 more
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An Experimental and Numerical Study on the Effect of Spacing between Two Helmholtz Resonators
Acoustics, 2021 This study investigates the acoustic performance of a system of two Helmholtz resonators experimentally and numerically. The distance between the Helmholtz resonators was varied to assess its effect on the acoustic performance of the system ...
Abhishek Gautam +2 more
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