二维封闭空间声传播系统仿真建模与实现
Simulation modeling and implementation of two-dimensional enclosed space sound propagation system
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摘要: 针对声传播过程难以实际测量的问题,建立了基于麦克斯韦波动方程的二维封闭空间声波传播模型,并基于奈奎斯特抽样定理实现了波动方程离散化,在此基础上得到了二维封闭空间声传播的仿真算法,用Matlab进行了实现.仿真结果表明本算法能够直观地显示声波在封闭空间传播情况,记录封闭空间声场内各点随时间的变化,便于实现对二维封闭空间声传播过程的观察和测量.Abstract: Aiming at the difficulty in actual measurement of sound propagation,the two-dimensional enclosed space model of sound propagation system based on Maxwell's wave equation was established,the wave equation was discretized using Nyquist theory.The simulation arithmetic of two-dimensional enclosed space sound propagation system was built and realized using Matlab.The results showed that it can intuitively show of sound in a enclosed space condition, record enclosed space acoustic field each point changing with time, and it is easy to realize for two-dimensional enclosed space sound propagation process observation and measurement.
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