汉传佛寺大雄宝殿内空间要素与声源指向对声场的影响  

Influence of Spatial Elements in the Chinese Buddhist Temple Mahavira Hall and Sound Source Direction on the Sound Field

作　　者：张东旭[1,2] 刘大平[2] 康健[2,3] 

机构地区：[1]东北大学江河建筑学院,沈阳110819 [2]哈尔滨工业大学建筑学院,哈尔滨150001 [3]谢菲尔德大学建筑学院

出　　处：《建筑科学》2015年第6期63-69,共7页Building Science

基　　金：国家自然科学基金项目"特大空间中声学引导人群疏散模型研究"(51378139)

摘　　要：为了探讨汉传佛教大雄宝殿内空间要素与声源指向对声场的影响机制,首先通过实测和计算机声学模拟,确定古建筑室内材料的声学参数和软件的参数设置,然后建立并分析佛寺大雄宝殿的计算机声场模型。研究结果表明,佛殿内的空间要素中,佛像可以起到声扩散体的作用,特别是设置在侧墙位置的次要佛像能够显著影响声场的混响时间及STI值,佛殿内设置的各类装饰织物能够起到吸声体作用,对声场影响主要体现在混响时间RT30和EDT上,声源的指向性主要影响EDT和C80值。In order to explore the influence mechanism of the spatial elements in the Chinese Buddhist Mahavira Hall and the sound source direction on the sound field, the acoustic parameters of the indoor materials of the ancient building and software parameters settings are firstly confirmed through site survey and computer acoustic simulation. Next, the computer sound field model for the Mahavira Hall is built and analyzed. The research results show that, among the spatial elements in the Hall, Buddha statues play the role of sound diffuser, especially the secondary statues on the side walls that can evidently influence the reverberation time and STI value of the sound field. Various furnishings in the Hall play the role as the sound absorber that mainly affects the reverberation time RT30 and EDT of the sound field. The sound source direction mainly affects the EDT and C80 value.

关 键 词：汉传佛寺 大雄宝殿 空间要素 声源指向性 声场 

分 类 号：TU112.1[建筑科学—建筑理论]