TY - JOUR AU - Bashmal, Salem AU - Bhat, Rama AU - Rakheja, Subash PY - 2009/09/01 Y2 - 2024/03/28 TI - Experimental studies on the in-plane vibrations and sound radiation in an annular thick disk JF - Canadian Acoustics JA - Canadian Acoustics VL - 37 IS - 3 SE - Proceedings of the Acoustics Week in Canada DO - UR - https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2204 SP - 202-203 AB - A study was conducted to demonstrate experimental investigations on the in-plane vibrations of thick plates with non-uniform boundary conditions. The natural frequencies of an annular disk supported at one point were measured and compared with values measured for free support conditions. The Rayleigh-Ritz method was used to demonstrate the use of boundary characteristic orthogonal polynomials as admissible functions in a three dimensional analysis to obtain the natural frequencies and the associated mode shapes analytically. The free in-plane vibration of the disk was assumed to have sinusoidal variations along the circumferential direction of the disk. ER -