| 卢义刚,杨启洪.时域有限差分法在建筑声学中的应用及前景[J].,2006,25(3):193-197 |
| 时域有限差分法在建筑声学中的应用及前景 |
| Application and prospect of the finite-difference time-domain method in architecture acoustics |
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| 中文摘要: |
| 介绍了声波方程的基本差分格式及稳定条件、数值色散、吸收边界条件等数值计算理论,例举了前人用时域有限差分法对噪声传播过程的模拟和室内声学中座椅吸声低谷效应模拟的模拟结果。本文指出,由于时域有限差分法的特点使其具有在模拟脉冲响应方面的特别优势,因而,应用这一技术研究厅堂的声学特性,尤其是低频特性,将有重要意义。 |
| 英文摘要: |
| The theory of acoustic finite-difference equations and its stability condition, numerical error and absorbing boundary condition are discussed. The process and results of modeling of noise propagation and that of the seat dip effect using finite-difference time-domain method are quoted from early works. This paper pointed out that it is advantageous to study the problems of room acoustics by using the finite-difference time-domain method, especially the in low-frequency range, because of the advantage in modeling impulse response. |
| DOI：10.11684/j.issn.1000-310X.2006.03.016 |
| 中文关键词: 时域有限差分法 室内声学 座椅吸声低谷效应 |
| 英文关键词: Finite-difference time-domain method (FDTD) Room acoustics Seat dip effect |
| 基金项目: |
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