ASA 127th Meeting M.I.T. 1994 June 6-10

3pMU4. Holographic studies of normal modes in bass handbells.

Deepak Gangadharan

Thomas D. Rossing

Phys. Dept., Northern Illinois Univ., DeKalb, IL 60115

Holographic interferometry has been used to compare the modes of vibration in two G[sub 1] handbells, one of bronze and one of aluminum [Rossing and Mansell, J. Acoust. Soc. Am. 93, 2382 (A) (1993)]. Except for the (2,0) and the (3,0) modes, tuned to have a 3:1 frequency ratio, all the other modes in the bronze and aluminum bells occur at different frequencies. In the bronze bell, we observed an unusual family of (m,3*) modes, not found in other bells. [sup a)]Present address: Phys. Dept., South Florida Univ., Tampa, FL 33620.