한국산학기술학회:학술대회논문집 (Proceedings of the KAIS Fall Conference)
- 한국산학기술학회 2011년도 춘계학술논문집 2부
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- Pages.529-532
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- 2011
이동분포하중을 받는 타이어의 음향방사 해석
Sound Radiation Analysis of Tire under The Action of Moving Line Forces
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김병삼
(원광대학교 공과대학 기계자동차공학부)
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Kim, Byoung-Sam
(Dept. of Mechanical and Automotive Engineering, Wonkwang University)
- 발행 : 2011.05.27
초록
A theoretical model has been studied to describe the sound radiation analysis for structure vibration noise of vehicle tires under the action of random moving line forces. When a tire is analyzed, it had been modeled as curved beams with distributed springs and dash pots that represent the radial, tangential stiffness and damping of tire, respectively. The reaction due to fluid loading on the vibratory response of the curved beam is taken into account. The curved beam is assumed to occupy the plane y=0 and to be axially infinite. The expression for sound power is integrated numerically and the results examined as a function of Mach number, wave-number ratio and stiffness factor. The experimental investigation for structure vibration noise of vehicle tire under the action of random moving line forces has been made. Based on the Spatial Transformation of Sound Field techniques, the sound power and sound radiation are measured. Results strongly suggest that operation condition in the tire material properties and design factors of the tire govern the sound power and sound radiation characteristics.
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