机构地区: 湖南工业大学机械工程学院
出 处: 《湖南工业大学学报》 2009年第3期83-85,共3页
摘 要: 空化水射流中空泡溃灭会产生空化噪声。空化噪声是一种微弱的随机信号,采集系统自身的噪声对空化噪声有着较强的干扰。采用自适应噪声抵消方法对空化信号进行滤波处理,结果表明该方法具有良好的滤除系统噪声干扰能力,得到了真实的水射流空化噪声信号。 Cavitation noise is a faint random signal, which is generated by the cavitation bubbles collapse in cavitating water jet. The noise of acquisition system itself strongly interferes with cavitation noise. The results with self-adaptive filtering processing for cavitation noise indicate that it has the better ability of filtering system noise. The real cavitation noise signals of cavitating water jet have been achieved.