中国古式大钟发声特性研究  

Research on acoustic characteristics of Chinese ancient bells

作　　者：王涵[1] 沈勇[1] 

机构地区：[1]南京大学声学研究所近代声学重点实验室,南京210093

出　　处：《声学技术》2008年第3期386-389,共4页Technical Acoustics

基　　金：国家自然科学基金(10474046)

摘　　要：根据钟振动发声的理论,从振动模态出发研究了中国古式大钟的发声特性,从理论上找到了与中国古式大钟发声特性密切相关的物理量。进行了中国古式大钟——龙魂大钟的撞击实验,测量了大钟的发声频谱和声衰减,并结合大钟物理参数进行了理论推算。实验测量结果与理论推算结果吻合良好,验证了理论的正确性,从而确认了与中国古式大钟发声特性密切相关的物理量,对中国古式大钟的实际铸造提出了指导性的意见。Research has been done on the acoustic characteristics of Chinese ancient bells has been done according to the vibration theory of the bell, and the key parameters that affect the vibration are found out. A local test of the Chinese ancient bell-Longhun Bell is taken. The strike note and the sound decay are measured, and theoretical calculation for Longhun Bell is also made. Results from test match the theory very well. Thus, the proved theoretical study is useful for the foundry design of the bell.

关 键 词：振动模态 泛音 声辐射 声衰减 

分 类 号：O421.2[理学—声学]