조화집중이동하중을 받는 철로로 부터의 음향방사
(주)코리아스칼라
- 최초 등록일
- 2023.04.05
- 최종 저작일
- 2018.02
- 7페이지/ 어도비 PDF
- 가격 4,000원
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서지정보
ㆍ발행기관 : 한국기계기술학회
ㆍ수록지정보 : 한국기계기술학회지 / 20권 / 1호
ㆍ저자명 : 서양, 김병삼
목차
1. 서 론
2. 음향파워 해석
3. 수치해석
4. 결과 및 분석
5. 결 론
References
영어 초록
A theoretical model has been studied to describe the sound radiation analysis for a railway under the action of harmony line moving forces. When a railway is analyzed, it had been modeled as curved beams with distributed springs and dash-pots that represent the radial, tangential stiffness and damping of rail, 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 curved beam material and elastic foundation are assumed to be lossless Bernoulli-Euler beam theory including a tension force(T), damping coefficient(C) and stiffness of foundation(Κ2) will be employed. The expression for sound power is integrated numerically and the results examined as a function of Mach number(M), wave-number ratio(γ) and stiffness factor(Ψ).
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