机械科学与技术2017，Vol.36Issue(3)：475-480,6.DOI:10.13433/j.cnki.1003-8728.2017.0324
碳纳米管薄膜扬声器设计及有源噪声控制
Design and Application of Carbon Nanotube Film Loudspeaker in Active Noise Control
摘要
Abstract
Carbon nanotube film loudspeaker is a new kind of speaker constituted by the superaligned carbon nanotubes based on thermoacoustic effect in recent years.For the purpose of probing the feasibility of carbon nanotube film loudspeaker as secondary sound source,the main factors which affect the far-field sound pressure of carbon nanotube film are analyzed.According to the characteristics,a simple and adjustable carbon nanotube film loudspeaker is designed to facilitate the practical application.The application of carbon nanotube film loudspeaker in active noise control has been proposed for the first time in this paper and the model of active noise control is constructed with the film as secondary source.For the target of the least total sound power of primary and secondary source,the optimal control voltage of the film is sovled.Five different carbon nanotube film loudspeakers are designed to control monopole acoustic radiation as the secondary source respectively.The active control effect is calculated and the main factors are analyzed.关键词
碳纳米管薄膜/远场声压/热声效应/有源噪声控制Key words
carbon nanotubes/far-field sound pressure/thermoacoustic effect/active noise control分类
通用工业技术引用本文复制引用
程予露,李双,游洋,李达..碳纳米管薄膜扬声器设计及有源噪声控制[J].机械科学与技术,2017,36(3):475-480,6.基金项目
国家自然科学基金面上项目(51375321)与机械设备健康维护湖南省重点实验室开放基金项目(201402) （51375321）
