文章摘要
曾向阳,陈克安.室内指向性声源的声场数值模拟[J].声学技术,2001,(2):68~70
室内指向性声源的声场数值模拟
On the numerical simulation of acoustical field in rooms with directional sources
投稿时间:1999-12-06  修订日期:2000-04-28
DOI:
中文关键词: 室内声场  指向性声源  数值模拟
英文关键词: acoustical field in rooms  directional source  numerical simulation
基金项目:国家自然科学基金资助;西北工业大学博士创新基金资助
作者单位
曾向阳 西北工业大学航海工程学院, 西安 710072 
陈克安 西北工业大学航海工程学院, 西安 710072 
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中文摘要:
      为了利用计算机对室内指向性声源的声场进行模拟,文中将声线跟踪法、虚源法和Monte Carlo法相结合,编制了一种声场数值模拟仿真程序。该程序能模拟有(或无)指向性声源在室内给定点的声压级等参数值,还能计算出该点的脉冲响应函数。作为例子,分别利用该法和声压叠加法研究了点源和偶极子声源的指向性。
英文摘要:
      In this paper, an algorithm which combines the ray tracing method,the image method and the Monte Carlo method is designed to calculate the acoustical field in rooms with directional sources. A corresponding computer program is designed and some parameters,such as the pressure level and the impulse response,can be calculated by the program . In the two examples, the pressure levels are calculated and the results are compared with those calculated by the sound pressure superposition method.
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