柴油机瞬时转速的提取和畸点的滤除  

The Method for Distilling Flash Speed and Filtering out Distorted Points of Diesel Engine

作　　者：卢亚斌[1] 

机构地区：[1]镇江船艇学院,江苏镇江212003

出　　处：《农机化研究》2007年第10期198-199,共2页Journal of Agricultural Mechanization Research

摘　　要：瞬时转速是一个重要的参数,在故障诊断和动力性能检测等方面受到普遍的关注。为此,给出了瞬时转速的提取方法,实测瞬时转速信号,进行数据处理及瞬时转速与柴油机工作状态的相关分析。在周期性的柴油机瞬时转速实测信号中会出现许多畸点,实验数据中的畸点滤除一般采用低通滤波。针对低通滤波的局限和不足,提出了一种快速衰减畸点值而不会带来其他误差的方法。通过实测380型柴油机对所提方法进行验证,证明此方法是可行的。The flash speed is a important parameter. This paper studies the method for distilling flash speed and filtering out distorted points of diesel Engine. We detected the flash speed signal and executed data processing. We also analyzed the relationship between the flash speed of the diesel engine and its operating status. The common method to filter the distorted points is the low pass filtering method , but it has some disadvantages and localization. Therefore the method which can attenuate distorted points fast without any new errors is presented. In the end performance the method on 380 diesel engine.

关 键 词：动力机械工程 柴油机瞬时转速 设计 畸点 

分 类 号：TK422[动力工程及工程热物理—动力机械及工程]