摘要
针对液压系统噪声源复杂、难以利用传统的噪声分析进行声源识别的特点,采用近场声全息方法对液压系统声场进行了声场分析,有效地识别出主要声源噪声特征,通过有针对性地采取降噪措施,使液压系统噪声得到有效控制。
Point to hydraulic system noise big,complex and failure to measurement,this paper adopted Near-field acoustic holography（NAH） measure analyse methodic to measure noise signals.On Near-field acoustic holography measure analyse methodic to hydraulic system noise source carry on identify,obtain it s voice distributiving law,rapidly exactly find mainly noise source.Here on basic up bring forth having pertinency steer down chirp measure,keeping hydraulic system noise marked control.Indicate Near-field acoustic holography analysis methodic is a sorl of efficacious hydraulic system noise source dentifying harmony analyse methodic.
出处
《煤矿机械》
北大核心
2011年第11期55-57,共3页
Coal Mine Machinery
基金
重庆市自然科学基金资助项目(2007AA6006-3)
关键词
近场声全息
液压系统
声场
噪声控制
near-field acoustic holography
hydraulic system
voice distributiving
noise control
