Browse > Article

Analysis of Vibration in Cello Bridge  

Choi Gi-Sang (서울시립대학교 전자전기컴퓨터공학부)
Abstract
Vibration of string is transmitted to the front plate through bridge to cause resonance of the instrument body in viol family string instruments. Therefore. the properties. geometrical shape. and positioning of the bridge are expected to have some effect on the sound color. In this study the strain and the stress in the bridge. and the force exerted on the top plate by the bridge as the string vibrates the bridge in cello are calculated through simulation based on the theory of elasticity. The modes of vibration and the characteristic frequencies are also found. Furthermore. the effect of geometric shape of bridge on sound color is studied in terms of frequency response. The results of this study show that the vibration characteristics of bridge is quite complex and the properties and the geometrical shape of bridge have significant effect on sound color, and therefore. the sound color of a cello can be controlled by changing the geometrical shape of bridge.
Keywords
Cello; Bridge; Elasticity; Vibration; Frequency response;
Citations & Related Records
연도 인용수 순위
  • Reference
1 M. Hacklinger, 'Violin timbre and bridge frequency response', Acoustica, 39, 323-30, 1978
2 정우양, 박선행, '바이올린용 소재의 진동모드 해석에 관한 연구', 제1보, 절삭방향 및 밀도에 따른 공진 주파수의 변화, 목재공학 27 (3) 1-6, 1998
3 E. V. Jansson, 'Experiments with the violin string and bridge', Applied Acoustics, 30, 2-3, 133-146, 1990
4 권주용, 정희석, '바이올린 플레이트의 도장처리가 홉습성과 진동모드에 미치는 영향', 목재공학 27 (3) 16-25, 1998
5 E. V. Jansson, 'Violin frequency response - bridge mobility and bridge feet distance', Applied Acoustics, 65, 1197-1205, 2004   DOI   ScienceOn
6 J. Alonso, E. V. 'Jansson, 'Eigenmodes, input admittance and the function of the violin', Acoustica, 50, 329-337, 1982
7 E. V. Jansson, Acoustics for violin and guitar makers, 4th ed., available from http://www.speech.kth.se/music/acviguit4/ index.html, 2002
8 L. Cremer, The physics of the violin, (MIT Press, 1984)
9 R. Stowell, ed., The Cambridge companion to the cello, (Cambridge Univ. Press, 1999)
10 N. E. Molin, A. O. William, E. V. Jansson, 'Transient wave response of the violin body', J. Acoustical Society of America, 88 (5) 2479-2481, 1990   DOI
11 W. Reinecke, 'Ubertragungseigenschaften des Streichinstrumentenstegs', Calgut Acoust. Soc. Newsletter, 19, 26-34, 1973