Research on the resonance frequency splitting mechanism and novel modal characteristics of a rotating tire acoustic cavity

Liu, Xiandong; Zhao, Wei; Hu, Xiaojun; Shan, Yingchun; He, Tian

doi:10.1177/10775463221075401

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…O'Boy and Walsh [15,16] showed a numerical model of the tire cavity with passive resonators to reduce the TACRN, and the larger the number of resonators was, the better the ability to attenuate the cavity noise over a wider frequency range was. Liu et al [17][18][19] researched the mechanism and characteristics of the frequency split phenomenon and novel modal of TACRN from different aspects, and the obtained function could help to determine the frequency variation range under different conditions, and the theoretical calculation results were verified by the experiment and simulation. The above works showed that the researchers regarded the acoustic wave in the tire cavity as a plane wave, and then analyzed the characteristics of tire acoustic cavity resonance.…”

Section: Introductionmentioning

confidence: 99%

Research on Conditions and Influence Factors of an Acoustic Wave Acting as a Plane Wave in Tire Acoustic Cavity

Hu,

Liu,

Shan

et al. 2023

Applied Sciences

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Tire acoustic cavity resonance noise (TACRN) contributes significantly to the interior noise of electric cars and passenger cars with lower powertrain noise, which affects the comfort of the ride. To suppress TACRN effectively, it is crucial to clarify the characteristics of TACRN. In previous studies, the acoustic wave in the tire acoustic cavity is straightforwardly assumed to be the plane wave for convenience. In fact, there exist strict conditions for the acoustic wave propagating in the pipeline to act as a plane wave. The aim of this paper is to make the characteristics and evolution of acoustic waves in tire acoustic cavities clear. To do so, a simplified model of the tire cavity is established, and the sound field distribution and the acoustic wave propagation characteristics in the tire cavity are analyzed based on the theory of acoustic waveguide. Then, the existence ranges of higher-order waves (non-plane waves), the conditions of an acoustic wave evolving into a plane wave, and the frequency range of a plane wave are investigated. Finally, the characteristics and evolution law of an acoustic wave in a tire acoustic cavity are obtained. The work in this paper may deepen the understanding of the characteristics and mechanism of acoustic waves in the tire cavity and be helpful and meaningful for analyzing and suppressing TACRN. Therefore, it is of practical significance to reduce TACRN transmitted to the vehicle and improve the sound quality inside the vehicle.

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Section: Introductionmentioning

confidence: 99%

Research on Conditions and Influence Factors of an Acoustic Wave Acting as a Plane Wave in Tire Acoustic Cavity

Hu,

Liu,

Shan

et al. 2023

Applied Sciences

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“…One key observation is that only the first mode of the cavity resonance creates a net force that vertically excites a wheel, while the higher modes do not create a net force. Since Sakata's initial research, several studies have been performed to analyze the influence of tire deflection in the contact patch area by Thompson [5,6], rolling speed by Feng et al [7][8][9][10][11], and the coupling mechanisms between the air cavity and the rim/tire structure by Cao and Bolton [12,13].…”

Section: Introduction 11 Background Of Studymentioning

confidence: 99%

Frequency reduction and attenuation of the tire air cavity mode due to a porous lining

Choo,

Choi,

Song

et al. 2024

noise cont engng j

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The tire air cavity mode is known to be a significant source of vehicle structure- borne road noise near 200 Hz for current generation passenger vehicles, and a porous lining placed on the inner surface of a tire has proven to be an effective countermeasure. The two noticeable effects of such a lining are the reduction in the cavity resonance frequency and the attenuation of the air cavity mode. In the present work, through both theoretical and numerical analysis, the mechanisms underlying the effects of a porous lining were studied. A two-dimensional duct-shaped theoretical model and a two-dimensional torus-shaped numerical model were created to investigate the lined tire in conjunction with the Johnson- Champoux-Allard model describing the viscous and thermal dissipative effects of the porous material. The design parameters of the porous lining were varied to study their impact and to identify optimal ranges of the design parameters, in particular, the flow resistivity. Finally, in an experimental analysis, the sound attenuation and the frequency drop were observed in measurements of force, acceleration, and sound pressure. In conclusion, it was demonstrated that the suggested theoretical and numerical models successfully predict the effects of porous linings and that the frequency reduction results from the decreased sound speed within the tire owing to the presence of the liner.

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“…Yi et al 18 established a finite element model of tire cavity coupling and studied the effect of road roughness on TACR noise. Liu et al 19,20 studied the effect of rotation on the TACR noise both by the finite element method (FEM) and the superposition theory of traveling waves. They discovered the splitting phenomenon in the natural frequency of TACR noise caused by the tire rotation.…”

Section: Introductionmentioning

confidence: 99%

Research on acoustic-structural coupling model and tire parameters of tire acoustic cavity resonance noise

Bao,

Feng,

Zhao

et al. 2023

Journal of Low Frequency Noise, Vibration and Active Control

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Tire acoustic cavity resonance (TACR) noise is one kind of low-frequency and narrowband noise that particularly annoys passengers, especially becomes more prominent in electric vehicles. This paper demonstrates a numerical investigation on the TACR noise via the acoustic-structural coupling finite element model. The accuracy of this coupling finite element model is validated both by the analytic method based on the superposition theory of traveling waves and experimental modal tests of tire cavities. According to the simulated models, the influences of external factors including the inflation pressure and road load on the TACR noise are studied. Meanwhile, as the main constituent component in the tire model, the effect of belt cord is also discussed. To design the low-TACR noise tire, various design parameters of the inner contour in tire cavity are analyzed. By the orthogonal test and range analysis, it is found that the contour parameters can slightly affect the modal frequency and sound pressure of TACR noise. Among these, the curvature radius of the tire shoulder ρ 4, tire sidewall ρ 5, and half-section height H have a more obvious influence on the TACR noise than the curvature radius of the tire crown region ρ 2 and transition region ρ 3. Meanwhile, it also illustrates that increasing the curvature radius at the tire shoulder ρ 4 and reducing the half-section height H has a reduction effect on the TACR noise. This study can contribute to the design of low road noise tires.

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Research on the resonance frequency splitting mechanism and novel modal characteristics of a rotating tire acoustic cavity

Cited by 4 publications

References 23 publications

Research on Conditions and Influence Factors of an Acoustic Wave Acting as a Plane Wave in Tire Acoustic Cavity

Research on Conditions and Influence Factors of an Acoustic Wave Acting as a Plane Wave in Tire Acoustic Cavity

Frequency reduction and attenuation of the tire air cavity mode due to a porous lining

Research on acoustic-structural coupling model and tire parameters of tire acoustic cavity resonance noise

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