发动机活塞—缸套磨损过程声发射机理研究  

A study on acoustic emission mechanism in engine tribological process for piston liner

作　　者：杨占才[1] 张来斌[1] 刘玉辉[1] 王朝晖[1] 樊建春[1] 

机构地区：[1]石油大学(北京)机电学院,北京昌平102249

出　　处：《石油矿场机械》2001年第4期1-3,共3页Oil Field Equipment

基　　金：北京市自然科学基金项目 (3992 0 0 7)

摘　　要：研究了发动机活塞—缸套磨损过程声发射现象产生的机理 ,介绍了发动机活塞—缸套磨损故障声发射诊断机理的试验研究结果。建立了在正常磨损状况下声发射表征参数与发动机转速、活塞—缸套间隙、气体爆发压力等特征参数之间的关系模型。通过对发动机活塞—缸套磨损过程的实验研究 。The generation mechanism of acoustic emission (AE) phenomenon in engine piston liner tribological process is studied,and the results of experimental studies on acoustic emission diagnostic mechanism for piston liner are introduced. An analytical model between such AE parameters as peak peak value,number of pulses, counting rate,and total count and the characteristics of the engine revolution, piston liner gap(interval),and other parameters in normal tribological process is presented. Its correction is confirmed by the result of experiments carried out in the engine tribological process.

关 键 词：发动机 活塞 缸套 磨损过程 声发射机理 

分 类 号：TK403[动力工程及工程热物理—动力机械及工程]