On the sound radiation of a rolling tyre

Kropp, Wolfgang; Sabiniarz, Patrick; Brick, Haike; Beckenbauer, Thomas

doi:10.1016/j.jsv.2011.11.031

Cited by 32 publications

(28 citation statements)

References 4 publications

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“…For a formulation of the method for curved structures, including linear viscoelasticity, see [35]. The waveguide finite elements have been successfully applied, for example, to study the sound radiation of a rolling tire [36], an acoustical problem closely related to the mechanical one of this study from the wave dispersion perspective.…”

Section: Physical Interpretation and Critical Speedmentioning

confidence: 99%

A numerical study of traveling waves in a viscoelastic cylinder cover under rolling contact

Karttunen

Hertzen

2013

International Journal of Mechanical Sciences

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Polymer-covered cylinders are widely used in high-speed industrial rolling contact machines. In this paper, traveling waves which appear at high speeds in the viscoelastic polymer cover of a cylinder due to rolling contact are studied using a 2D finite element (FE) model for a two-cylinder system. Through eigenmode analysis of the polymer cover, it is found that an infinite number of natural mode families exist for the cylinder cover due to its finite thickness. A critical speed below which the traveling waves do not appear can be calculated on the basis of a resonance condition using the modal information. In dynamic analyses, traveling waves in the cover are identified as modified quasi-elastic Rayleigh waves composed of the eigenmodes of the polymer cover. The symbiosis of the eigenmode and wave propagation aspects allows the formation of a coherent overall picture of the traveling wave phenomenon. The critical speed according to the resonance condition is also the minimum phase velocity of the waves propagating in the cover. At the critical speed and above, there is a spectrum of resonant speeds due to wave dispersion. It is found that the traveling wave phenomenon is best described as a Rayleigh wave resonance in which contact-induced modified quasi-elastic Rayleigh waves arising at critical and supercritical speeds superpose to form a strong traveling shock wave.

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Section: Physical Interpretation and Critical Speedmentioning

confidence: 99%

A numerical study of traveling waves in a viscoelastic cylinder cover under rolling contact

Karttunen

Hertzen

2013

International Journal of Mechanical Sciences

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“…[8,36].The geometrical boundary of the acoustical horn is defined by the leading or trailing edge of the tyre and the road surface. It is suspected that the matching of the acoustic impedance in the 'horn' and the ambient acoustic impedance provides favourable conditions for the amplification of sound radiation [8].…”

Section: Tyre/road Noisementioning

confidence: 99%

“…It is suspected that the matching of the acoustic impedance in the 'horn' and the ambient acoustic impedance provides favourable conditions for the amplification of sound radiation [8]. Conducting reciprocity measurements on a single tyre with a loudspeaker positioned at 1 m distance to the tyre and with the microphone in line with the tyre plane, an amplification of up to 23 dB at a distance of 10 mm off the contact patch trailing edge of the tyre and the road is reported [36]. It is concluded that the horn effect is greatest at the location closest to the contact patch trailing edge.…”

Section: Tyre/road Noisementioning

confidence: 99%

“…The analysis of the angular properties of the horn effect shows that the sound radiation decreases when the receiver moves from the in-line plane of the tyre to a position perpendicular to the tyre plane. The angular acoustic properties change, if the measured sound pressure values are corrected for distance attenuation, thus, simulating a coast-by situation of the tyre with respect to the receiver position at 7.5 m distance and 1.2 m height to the centre of the tyre [36]. The interaction between distance attenuation and the horn effect leads to a maximum amplification between the angles of 45° and 75° off the tyre plane in the frequency range around 1000 Hz.…”

Section: Tyre/road Noisementioning

confidence: 99%

“…This can have a high influence on pass-by noise, since the pass-by noise level is determined using frequency A-weighting. The previous measurement arrangement is also carried out with the tyre mounted on a vehicle [36]. The overall amplification due to the horn effect at the receiver position is higher than without the vehicle body.…”

Section: Tyre/road Noisementioning

confidence: 99%

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Noise source characteristics in the ISO 362 vehicle pass-by noise test: Literature review

et al. 2013

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A B S T R A C TSince many people are exposed to road traffic noise in urban areas, current legislation aims to limit vehicle noise emissions. In Europe, the vehicle pass-by noise test is implemented according to the international standard ISO 362. As a result of more recent investigations of urban traffic, a revision to the ISO 362 standard has been proposed that includes a constantspeed test in addition to the traditional accelerated test in order to determine the pass-by noise value. To ensure compliance with the pass-by noise test vehicle manufacturers and suppliers must quantify vehicle noise source characteristics during the design stage of the vehicle. In addition, predictive tools need to be available during the product development phase in order to estimate the final pass-by noise level. In this paper an extensive literature survey is presented of noise source characteristics in the ISO 362 vehicle pass-by noise test. Vehicle pass-by noise is analysed in the time and frequency domains and a ranking of the noise source contributions is established. The characteristics of the four major noise sources (engine, intake system, exhaust system, tyre/road system) contributing to pass-by noise as well as current prediction methods are reviewed.

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Characterization of Sources

Vorländer

2020

Auralization

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On the sound radiation of a rolling tyre

Cited by 32 publications

References 4 publications

A numerical study of traveling waves in a viscoelastic cylinder cover under rolling contact

A numerical study of traveling waves in a viscoelastic cylinder cover under rolling contact

Noise source characteristics in the ISO 362 vehicle pass-by noise test: Literature review

Characterization of Sources

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