| 气动阀门发声器特性分析 |
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| 引用本文： | 白春华,吴建星. 气动阀门发声器特性分析[J]. 北京理工大学学报, 2006, 26(8): 677-680 |
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| 作者姓名： | 白春华 吴建星 |
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| 作者单位： | 北京理工大学,爆炸科学与技术国家重点实验室,北京,100081;武汉科技大学,资源与环境学院,湖北,武汉,430081 |
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| 摘 要： | 在对气动阀门发声器的工作过程进行描述基础上,通过理论分析和数值计算与实验相结合的方法,分析了气动阀门发声器的内部流场和外部声场的特征. 得出了在气室压力比大于1.89时,低频声波也是占主要成份的结论.
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| 关 键 词： | 气动阀门 气动特性 发声器 数值仿真 |
| 文章编号： | 1001-0645(2006)08-0677-04 |
| 收稿时间： | 2006-03-09 |
| 修稿时间： | 2006-03-09 |
Sound Characteristics of Pneumatic Valve Sound Generator |
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| BAI Chun-hua and WU Jian-xing. Sound Characteristics of Pneumatic Valve Sound Generator[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2006, 26(8): 677-680 |
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| Authors: | BAI Chun-hua and WU Jian-xing |
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| Affiliation: | 1. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China; 2. The College of Resource and Environment Engineering, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China |
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| Abstract: | The characteristics of the inner flow field and outer sound field of a pneumatic valve sound generator is analyzed with its theoretical model,numerical simulation and experimental results.It is found that low frequency sound wave plays the chief role also when the air pressure in chamber is higher than the ambient.The working process of the valve is simulated with the commercial software. |
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| Keywords: | pneumatic valve aerodynamic characteristics sound generator numerical simulation |
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