지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.4
- 수록면
- 29 - 37 (9page)
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초록· 키워드
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The modal characteristics of a compressor wheel of an automotive turbocharger have been investigated using an experimental method based on an acoustic frequency response function, p/f(ω), where p is sound pressure radiated from a structure, and f is impact force. First, a well-defined annular disc with narrow radial slots was examined to check whether the vibro-acoustic test could precisely determine natural frequencies and vibration modes of structures showing that the vibro-acoustic test proposed in this paper was comparable to the conventional modal test with an accelerometer and the numerical analysis. The conventional method has been found to be inappropriate for compressor wheel because of additional mass due to the accelerometer and additional damping from the accelerometer cable alter the dynamic responses of the wheel blades. Modal characteristics of the wheel have been defined using vibro-acoustic test and verified with the results from another conventional method using a laser vibrometer. Natural frequencies and mode shapes of a turbocharger wheel, which can't be precisely obtained with conventional method, could be defined accurately without the additional effects from sensor and cable. Proposed method can be applied to small structures where conventional sensors and cables could generate troubles.
목차
Abstract
1. 서론
2. 터보차져 휠
3. 방사음을 이용한 고유진동 분석
4. 터보차져 휠의 고유진동 특성
5. 결론
References
참고문헌 (13)
참고문헌 신청
1. [단행본] - D. J. Inman / 2001 / Engineering Vibration / Prentice Hall, Inc
2. [학술지(정기간행물)] - P. Avitabile / 2001 / Experimental Modal Analysis: A Simple Non-mathematical Presentation / Sound and Vibration 35 (1) : 20 ~ 31
3. [단행본] - D. J. Ewins / 2000 / Modal Testing: Theory, Practice, and Application / Research Studies Press Ltd
4. [단행본] - K. G. McConnell / 1995 / Vibration Testing: Theory & Practice / John Wiley & Sons, Inc
5. [학술대회논문] - B. H. Lee / 1998 / Automatic Q. C. of Electric Grinder using Vibration Signal / KSNVE Spring Conference : 173 ~ 178
2. [학술지(정기간행물)] - P. Avitabile / 2001 / Experimental Modal Analysis: A Simple Non-mathematical Presentation / Sound and Vibration 35 (1) : 20 ~ 31
3. [단행본] - D. J. Ewins / 2000 / Modal Testing: Theory, Practice, and Application / Research Studies Press Ltd
4. [단행본] - K. G. McConnell / 1995 / Vibration Testing: Theory & Practice / John Wiley & Sons, Inc
5. [학술대회논문] - B. H. Lee / 1998 / Automatic Q. C. of Electric Grinder using Vibration Signal / KSNVE Spring Conference : 173 ~ 178
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