机构地区: 华南理工大学建筑学院建筑系
出 处: 《中山大学学报(自然科学版)》 2000年第S2期157-160,共4页
摘 要: 给出了房间内声脉冲响应函数的有限元计算模型对于刚性界面的情况,并且给出 了有限元计算结果与模型实验结果的比较,两者吻合很好有限元素法(FEM)可用于分析 复杂形状房间内声场的低频特性,它可以真实地反映房间内声场的波动特征. Acoustic Finite Element Method (FEM) is a useful tool in the analysis of low-frequency room acoustics where the true wave nature of sound must be accurately modeled. Herein FEM is being used to predict room impulse response. An agreement between computer solutions and measurements in a rigid room shows the accuracy and applicability of the FEM models. In conjunction with geometrical acoustics model for high frequencies, a wide frequency range aunalization can be realized in real rooms of large volume.
领 域: [自然科学总论]