摘要
本文给出了应用声有限元素法模拟坐席吸声低谷效应的计算模型。该模型首先在时间域计算房间脉冲响应，再通过傅立叶变换得到声压频谱特性。将有限元分析结果与已有的模型实验及大厅实测数据相比较，证明该方法是研究坐席吸声低谷效应的有效手段。
An Acoustic Finite Element model (AFEM) for calculating the acoustic im pulse response in rigid rooms was presented in an earlier paper [1]. Here the model is used to simulate seat dip effect in auditorium. The pressure frequency spectrum is obtained by taking the FFT of the impulse response that had been obtained at first. Results from computer simulation of the seat dip phenomenon are compared with the findings of some previous studies where measurements have been made on scale models and in real concert halls.
出处
《应用声学》
CSCD
北大核心
2000年第4期35-37,48,共4页
Journal of Applied Acoustics
基金
广东省自然科学基金
关键词
坐席吸声低谷效应
声有限元素法
室内声学设计
Seat dip effect, Acoustic finite element method (AFEM),Acoustic impulse responses, FFT
