文章摘要
陈源,黄其柏,师汉民.次声发生机理与装置的研究[J].声学技术,1999,(1):39~41
次声发生机理与装置的研究
Research of infrasonic radiation mechanism and equipment
投稿时间:1998-07-28  修订日期:1999-01-20
DOI:
中文关键词: 活塞发声  次声机理  次声特性
英文关键词: piston infrasonic radiation  infrasonic mechanism  infrasonic characteristics
基金项目:国家“95”攀登计划项目
作者单位
陈源 华中理工大学机械科学与工程学院, 武汉 430074 
黄其柏 华中理工大学机械科学与工程学院, 武汉 430074 
师汉民 华中理工大学机械科学与工程学院, 武汉 430074 
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中文摘要:
      本文从平面活塞运动的发声机理出发,研究了次声发生机理,建立了次声场的数学模型;并在此基础上,研制出一种频率、幅度均可调的次声发生装置。通过实验验证了理论模型的正确性,并分析了次声的频率、活塞的振幅、活塞的面积及空间点到声源距离与次声的声压级之间的关系。
英文摘要:
      In this paper, the mechanism of infrasonic radiation is studied and mathematical model of infrasonic field is established based on plane piston radiation mechanism. The infrasonic radiation equipment, which can adjust the frequency and amplitude of infrasound, is developed. Moreover, the theoretical results are veritied by the experiments. The relation among the sound pressure level and infrasonic frequency, piston amplitude, piston area, and distance from infrasonic source to space are discussed.
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