성덕대왕 신종의 진동 및 음향특성

초록

Vibration and sound characteristics of King Song-Dok Bell are ivesigated. Natural frequencies, vibration modes and beat period of the bell are precisely measured. The effect of striking position and the position of nodal lines on the beat characteristics is examined. It is first found that the beat characteristics are quite different according to the position on the bell surface and clear beat is periodically generated on the circumference. It turns out that in King Song-Dok Bell, Dangjwa(the present striking position) is located at the position which makes a beat in the first vibration mode, as well as it produces very clear beat in the second vibration mode.

키워드