• Title/Summary/Keyword: 타이어소음

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타이어 연구 개발에 CAE 적용

  • 김균옥
    • Journal of the KSME
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    • v.31 no.4
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    • pp.348-355
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    • 1991
  • 타이어의 기능 및 문제점들에 대해서는 많은 연구가 수행되었거나 현재 연구가 진행중이나 연 구결과가 제품개발 및 향상에 이바지하기 위해서는 아직 부족한 부분이 많다. 또한 타이어 생산설비 및 공정의 개선 및 향상에도 노력을 기울여야 할 것이다. 특히 타이어. 차량간의 상 호관계 즉, 핸들링 특성에 관한 연구와 ride 특성에 관한 연구, 소음에 관한 연구들이 CAE 기 법을 이용하여 추진될 것으로 생각된다. 이는 바꾸어 말하면 어떠한 악조건의 주행 하에서도 타이어와 차량간의 운동 일체성을 유지할 수 있는 타이어를 개발하는 것을 말한다. 이를 수행 하기 위한 CAE 기법으로는 FEM, vehicle dynamic 등의 시뮬레이션이 필요하리라 생각된다.

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Measurement of Tire Structural Vibration Noise Using Spatial Transformation of Sound Field Technique (음장의 공간적 변환기법을 이용한 타이어 구조 진동 소음 측정)

  • Kim, Byoung-Sam
    • The Journal of the Acoustical Society of Korea
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    • v.14 no.5
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    • pp.11-19
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    • 1995
  • The Interaction between tire and road is responsible for the excited vibration of the tire, and It is also important for the sound radiation. In this paper. measurement of tire structural vibration noise from a chassis dynamometer using Spatial Transformation of Sound Field(STSF) technique is studied. STSF involving a scan that uses an array of transducers over a planar surface close to the source is under investigation. From cross spectra measurement during the scan, a principal component representing the sound field is extracted. Any power descriptor of the near field can then be investigated by means of near-field acoustic holography, while the distant field can be determined by application of Helmholtz integral equation. The results of the measurement were used to obtain the radiation sound pattern from the center line of the tire, and to locate the radiation sound generating regions in the vicinity of the tire.

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A Study on Tire Labeling Performance for Tire Pattern Design (타이어 패턴 설계인자에 따른 타이어 라벨링 성능변화 연구)

  • Kang, Young Kyu;Jung, DaeWon;Oh, YagJeon
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2013.10a
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    • pp.268-270
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    • 2013
  • It is well known that tire pattern design factors have a large influence on overall tire performance. In this paper, the basic study on the effects of tire pattern design factors on tire labeling performance has been carried out through experimental tests. The pass-by noise is affected by tire pattern design, by a maximum of 2.7dB(A), and the number of sipes gives large effects on PBN. The rolling resistance is also influenced, mostly by the number of longitudinal grooves and secondly the number of sipes. Finally, there is a weak correlation between PBN and RR when the pattern design factors are changed.

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A study on the relationship between acoustic modes in tire-wheel guard space and high frequency road noise (타이어-휠가드 공간의 음장모드와 고주파성 로드노이즈의 상관성 연구)

  • Lee, Jong Hyun;Ku, Yo Cheon;Lee, Jin Mo
    • The Journal of the Acoustical Society of Korea
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    • v.35 no.4
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    • pp.288-294
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    • 2016
  • The space between tire and wheel guard acts as a path for tire pattern noise transmission. In this study, acoustic phenomenon occurring in the tire-wheel guard space is investigated using acoustic mode analysis and visualization of the sound pressure distribution over the wheel guard surface. We introduced a cavity over the wheel guard surface to reduce the tire pattern noise, where the cavity acts as an acoustic damper. The interior noise was reduced by 2 dB(A), and the noise control measures treated in this study may provide an efficient method to improve interior sound quality without increasing cost and weight at the final stage of the vehicle development.