基于缸盖振动信号分析的柴油机气门异响检测  

Analysized diesel air valve unusual inspection based on cylinder cap vibration signal

作　　者：刘增勇[1] 史宝杰 马洪文[1] 许红军[1] 徐玉秀[3] 

机构地区：[1]军事交通学院装备保障系,天津300161 [2]鹤壁无线电四厂,河南鹤壁458000 [3]天津工业大学,天津300161

出　　处：《移动电源与车辆》2008年第2期31-34,共4页Movable Power Station & Vehicle

摘　　要：由缸盖振动信号提取气门的落座冲击和爆燃冲击的信号特征,由能量谱识别出同种冲击能量分布比较固定的频带,通过冲击能量指标诊断气门落座冲击和爆燃冲击的异常特征。The cylinder cap vibration signal is gave rise to signal characteric of air valve dropping lash and explode lash, and distinguished relative same fixed frequency band of lashing energy through energy chart, diagnosed unusual characteric of air valve dropping lash and explode lash through lashing energy.

关 键 词：振动 气门异响 检测 

分 类 号：TK42[动力工程及工程热物理—动力机械及工程]