Results 121 to 130 of about 252,123 (184)
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Leakage effect in Helmholtz resonators
The Journal of the Acoustical Society of America, 2009The effect of leakage in Helmholtz resonators has been investigated in this predominantly experimental study combined with a computational effort. A prototype has been built with varying levels of intentional leakage due to holes in the baffle and gaps between the baffle and the housing.
Ahmet, Selamet +2 more
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, 2021
The design of low-frequency sound absorbers with broadband absorption characteristics and optimized dimensions is a pressing research problem in engineering acoustics.
K. Mahesh, S. Kumar Ranjith, R. Mini
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The design of low-frequency sound absorbers with broadband absorption characteristics and optimized dimensions is a pressing research problem in engineering acoustics.
K. Mahesh, S. Kumar Ranjith, R. Mini
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Design of broadband Helmholtz resonator arrays using the radiation impedance method.
Journal of the Acoustical Society of America, 2022This paper describes the design process of a low-frequency sound absorptive panel composed of differently tuned Helmholtz resonators (HRs), considering size and fabrication constraints relevant for applications in the building sector.
Vidhya Rajendran +2 more
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Japanese Journal of Applied Physics, 2022
We designed/proposed kinds of new-parallel connections of the Helmholtz resonator with embedded apertures (HREAs). The design rule of the resonator, aperture, and length of the embedded hole has much influence on the sound absorption characteristics of ...
Junzhe Zhang +4 more
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We designed/proposed kinds of new-parallel connections of the Helmholtz resonator with embedded apertures (HREAs). The design rule of the resonator, aperture, and length of the embedded hole has much influence on the sound absorption characteristics of ...
Junzhe Zhang +4 more
semanticscholar +1 more source
Analytical Chemistry
A high-sensitivity fiber-optic photoacoustic (PA) gas microsensor is demonstrated with dual enhancement based on acoustics and detection. Due to the characteristic of small size, a Helmholtz resonator is integrated into a miniature PA sensor.
Chenxi Li +6 more
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A high-sensitivity fiber-optic photoacoustic (PA) gas microsensor is demonstrated with dual enhancement based on acoustics and detection. Due to the characteristic of small size, a Helmholtz resonator is integrated into a miniature PA sensor.
Chenxi Li +6 more
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The Helmholtz resonator revisited
European Journal of Physics, 2018zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hans G Dosch, Matthias Hauck
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Applied Acoustics, 2010
Abstract Acoustic characteristics of a dual Helmholtz resonator which consists of a pair of cylindrical neck and cavity connected in series (neck–cavity–neck–cavity) are established primarily in terms of a lumped-parameter theory. The results are then compared to (a) a two-dimensional analytical approach by applying a pressure/velocity matching ...
M.B. Xu, A. Selamet, H. Kim
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Abstract Acoustic characteristics of a dual Helmholtz resonator which consists of a pair of cylindrical neck and cavity connected in series (neck–cavity–neck–cavity) are established primarily in terms of a lumped-parameter theory. The results are then compared to (a) a two-dimensional analytical approach by applying a pressure/velocity matching ...
M.B. Xu, A. Selamet, H. Kim
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Journal of Vibration and Control, 2022
In this study, a design method of broadband low-frequency muffler based on NN method and Helmholtz resonators with helical necks is proposed, which ensures almost perfect ventilation and broadband sound insulation in the low- and medium-frequency range ...
Chungeng Bai +4 more
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In this study, a design method of broadband low-frequency muffler based on NN method and Helmholtz resonators with helical necks is proposed, which ensures almost perfect ventilation and broadband sound insulation in the low- and medium-frequency range ...
Chungeng Bai +4 more
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Journal of Sound and Vibration, 1976
Abstract This paper develops the theory of the excitation of a Helmholtz resonator by external disturbances located arbitrarily close to the mouth of the resonator. The classical approach of Rayleigh is thereby extended to situations in which the disturbance at the mouth is not necessarily equivalent to a uniform, time dependent pressure perturbation.
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Abstract This paper develops the theory of the excitation of a Helmholtz resonator by external disturbances located arbitrarily close to the mouth of the resonator. The classical approach of Rayleigh is thereby extended to situations in which the disturbance at the mouth is not necessarily equivalent to a uniform, time dependent pressure perturbation.
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The Journal of the Acoustical Society of America, 1989
For electronically reproducing the total sound produced by a musical instrument, the musical instrument comprises a plurality of components each of which produces one aspect of the total sound, an electronic acoustic reproduction system comprises vibration transducer means mounted on the instrument for receiving the one aspect of the total sound from ...
Joseph F. Hayes, Warwick H. Holmes
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For electronically reproducing the total sound produced by a musical instrument, the musical instrument comprises a plurality of components each of which produces one aspect of the total sound, an electronic acoustic reproduction system comprises vibration transducer means mounted on the instrument for receiving the one aspect of the total sound from ...
Joseph F. Hayes, Warwick H. Holmes
openaire +1 more source