气门动态信号处理方法研究  

Investigation on Data Processing of Valve Vibration

作　　者：李建锋[1] 俞小莉[1] 沈瑜铭[1] 刘忠民[1] 

机构地区：[1]浙江大学,浙江杭州310027

出　　处：《铁道机车车辆》2003年第A01期176-178,共3页Railway Locomotive & Car

摘　　要：讨论实测气门加速度信号中低频的趋势分量和高频机械振动干扰的处理方法。分析研究表明 ,采用最小二乘法拟合可以有效去除趋势分量 。Data Processing of valve vibration was investigated on this paper, major in low-frequency current component and high-frequency mechanical jamming component. Based on test data analysis, least-squares method could deal with low-frequency current component effectively, The method of applying the wavelet analysis to filter high-frequency mechanical jamming component in the sample data is described.

关 键 词：配气机构 发动机 气门加速度 数据处理 最小二乘法 小波分析 

分 类 号：TK403[动力工程及工程热物理—动力机械及工程]