Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지
DOI QR코드

DOI QR Code

An Experimental Study on the Influence of the Internal Cavity and Gap on the Bell Acoustics

내부 공동과 간극이 종 음향에 미치는 영향에 대한 실험적 연구

  • 정원태 (서울대학교 기계항공공학부) ;
  • 강연준 (서울대학교 기계항공공학부) ;
  • 김석현 (강원대학교 기계메카트로닉스공학부)
  • Received : 2010.06.30
  • Accepted : 2010.08.04
  • Published : 2010.09.20
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, it is experimentally investigated how bell acoustics are influenced by the internal cavity of the bell and the gap between the bell bottom and the floor. Acoustic transmission function and natural frequency of a test bell are measured and analysed. Experimental study is conducted to evaluated how the resonance effect influences the bell sound and how the bell sound is different according to the striking condition and the measurement direction. Acoustic resonance frequency of the cavity-gap system is predicted by boundary element analysis using SYSNOIS and the validity of the predicted result is verified by experiment. The result of the study could be applied to determine the optimal gap size which makes the bell sound strong and long.

Keywords

References

  1. Lee, B. H., 1983, “Acoustic Effects of the Sound and Resonance Cavity in Korean Brahman Bells,” The Acoustical Society of Korea, Vol. 2, No. 1, pp. 1-10.
  2. Jeong, W. T., Kang, Y. J. and Kim, S. H., 2010, “Acoustic Transmission Characteristics of the Cylindrical Cavity with an Auxiliary Cavity and a Gap,” The Acoustical Society of Korea, Vol. 29, No. 3, pp. 173-183.
  3. Park, H. G., Kang, Y. J. and Kim, S. H., 2008, “Dual Mode Tuning Strategy of a Slightly Asymmetric Ring,” Journal of Acoustical Society of America, Vol. 123, No. 3, pp. 1383-1391. https://doi.org/10.1121/1.2836784
  4. Kim, S. H., 2003, “Beat Map Drawing Method of Bell Type Structures and Beat Maps of the King Seong-deok Divine Bell,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 13, No. 8, pp. 626-636. https://doi.org/10.5050/KSNVN.2003.13.8.626
  5. Kinsler, L. E., et al., 2000, Fundamentals of Acoustics, John Wiley & Sons, Inc., New York.
  6. LMS International, 2000, SYSNOISE Users Manual, Revision 5.5.
  7. Ahn, S. J., Kang, Y. J., Kim, S. H. and Park, S. Y., 2008, “Analysis on the Acoustic Beat of a Slightly Asymmetric Cylindrical Shell,” The Acoustical Society of Korea, Vol. 27, No. 4, pp. 183-190.

Cited by

  1. Optimal Shape Design of Pyeongyeong Considering Structural and Acoustical Characteristics vol.38, pp.3, 2014, https://doi.org/10.3795/KSME-A.2014.38.3.337