| 室内指向性声源的声场数值模拟 |
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| 引用本文： | 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, 20(2): 68-70 |
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| 作者姓名： | 曾向阳 陈克安 |
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| 作者单位： | 西北工业大学航海工程学院, |
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| 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。 |
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| 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，编制了一种场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。
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| 关 键 词： | 室内声场 指向性声源 数值模拟 计算机模拟 声压叠加法 点源 偶极子声源 仿真程序 |
| 文章编号： | 1000-3630（2001）02-0068-03 |
| 收稿时间： | 1999-12-06 |
| 修稿时间： | 1999-12-06 |
On the numerical simulation of acoustical field in rooms with directional sources |
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| ZENG Xiang-yang and CHEN Ke-an. On the numerical simulation of acoustical field in rooms with directional sources[J]. Technical Acoustics, 2001, 20(2): 68-70 |
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| Authors: | ZENG Xiang-yang and CHEN Ke-an |
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| Affiliation: | Northwestern Polytechnic University, Xian 710072, China;Northwestern Polytechnic University, Xian 710072, China |
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| Abstract: | 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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| Keywords: | acoustical field in rooms directional source numerical simulation |
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