On the Horn Effect of a Tyre/Road Interface, Part Ii: Asymptotic Theories

Kuo, Chih‐Yu; Graf, Rag; Dowling, Ann P.; Graham, WR

doi:10.1006/jsvi.2001.4217

Cited by 15 publications

(8 citation statements)

References 4 publications

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“…This theory can also be extended to include the curvature of the cylinder and can therefore predict the horn e!ect of a real tyre at higher frequencies. This work is discussed in the second part of this paper [8]. 6.…”

Section: High Frequency Modelsmentioning

confidence: 98%

“…In fact, the ampli"cation is dependent only on the ratio between wavelength and width w (Figure 15), and not on each parameter alone. This can be explained by a simpli"ed low frequency asymptotic theory, which is presented in the second part of this paper [8].…”

Section: High Frequency Modelsmentioning

confidence: 98%

“…It is shown that a modi"ed version of this model correctly predicts the horn e!ect in a wedge made of two intersecting planes, but only quantitatively describes the horn e!ect of a tyre road gap. An alternative model based on ray theory is proposed for this case and is described in Part 2 of this paper [8]. Finally, the dependence of the horn-e!ect on di!erent geometrical parameters is investigated both through experiment and boundary element calculations.…”

Section: Introductionmentioning

confidence: 99%

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On the Horn Effect of a Tyre/Road Interface, Part I: Experiment and Computation

Graf

Kuo

Dowling

et al. 2002

Journal of Sound and Vibration

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Section: High Frequency Modelsmentioning

confidence: 98%

Section: High Frequency Modelsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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On the Horn Effect of a Tyre/Road Interface, Part I: Experiment and Computation

Graf

Kuo

Dowling

et al. 2002

Journal of Sound and Vibration

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“…This effect is generated by road and tyre, which forms a geometrical structure that amplifies the noise. This amplification results in tyre noise component in the frequency range 600-2000 Hz, produced due to tyre-road interaction [23,25,26]. The directivity of horn depends upon tyre geometry, tyre thread geometry, weight, and torque of tyre.…”

Section: Tyre Noisementioning

confidence: 99%

Modality of Adaptive Neuro-Fuzzy Classifier for Acoustic Signal-Based Traffic Density State Estimation Employing Linguistic Hedges for Feature Selection

Borkar¹,

Sarode²,

Malik³

2015

Int. J. Fuzzy Syst.

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Modality of adaptive neuro-fuzzy classifier (ANFC) for vehicular traffic density estimation using linguistic hedges (LH) and feature selection (FS) approach is proposed in this work. Cumulative vehicular acoustic signal is collected from roadside installed Omni-directional microphone followed by acoustic feature extraction using Mel frequency cepstral coefficients for varying combination of frame size and shift size. ANFC is modeled to classify traffic density states as low, medium, and heavy. Classification performance is further improved through modeling of ANFC with LH. Feature selection criteria are considered for varying combinations of frame size and shift, where linguistic hedges are employed for FS followed by ANFC to model traffic density states. We are getting better classification performance as compared to state of art literature for lower combinations of frame and shift size and even for consideration of single frame feature vector. Consideration of multiple contiguous frames will definitely increase the accuracy but with cost of computational time.

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“…Two-dimensional computations of the horn effect were done by Anfosso-Ledee et al (2000b) and compared to three-dimensional results in Anfosso-Ledee et al (2000a). A detailed analytical, numerical and experimental analysis of the horn effect was done by Graf et al (2002); Kuo et al (2002). The analytical model of a sphere on an absorbing ground was used by Bravo and de la Colina (2015); Bravo (2017) and compared to measurements to estimate the horn effect on a finite impedance ground.…”

Section: Introductionmentioning

confidence: 99%

Horn effect of tyre/road noise: modelling and experiments of acoustic network resonators in horn-like structures

Wang

Duhamel

2018

IJVNV

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The noise generated in the contact zone can be amplified by the horns made by the surfaces of the tire and the road. Previous researches on the horn effect have only investigated smooth tires and roads. In this work we take into account the tire treads in the calculation of the horn effect. The air resonances and horn effects are studied in the same model. A model of flanged networks is established for the tire/road system, and multi-domain coupling methods are developed for the calculation of the acoustic fields around the flanged networks. With this model the reductions of the amplifications of the horn effect by the networks can be estimated. The model of the flanged networks are also proved to be effective by the experiments. Wooden pipes between a wooden cylinder and a sheet of plywood are built for the validation. A real tire on a sheet of plywood is also measured and calculated with the proposed methods.

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On the Horn Effect of a Tyre/Road Interface, Part Ii: Asymptotic Theories

Cited by 15 publications

References 4 publications

On the Horn Effect of a Tyre/Road Interface, Part I: Experiment and Computation

On the Horn Effect of a Tyre/Road Interface, Part I: Experiment and Computation

Modality of Adaptive Neuro-Fuzzy Classifier for Acoustic Signal-Based Traffic Density State Estimation Employing Linguistic Hedges for Feature Selection

Horn effect of tyre/road noise: modelling and experiments of acoustic network resonators in horn-like structures

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