| 基于缸盖振动的柴油机喷油、燃烧信息检测研究 |
| |
| 引用本文： | 史玉鹏,刘建敏,许世永,贺立峰.基于缸盖振动的柴油机喷油、燃烧信息检测研究[J].车用发动机,2011(3):74-82. |
| |
| 作者姓名： | 史玉鹏 刘建敏 许世永 贺立峰 |
| |
| 作者单位： | 装甲兵工程学院;中国北方发动机研究所; |
| |
| 基金项目： | 装备预先研究项目(40402020101) |
| |
| 摘 要： | 对某V型12缸柴油机缸盖振动燃烧段信号进行分析,研究了针阀落座、缸内爆发响应信号的时域特点及频域特点.利用数字积分法由加速度信号获得速度信号,通过峰值速度表征最大压力升高率,峰值速度位置表征最大压力升高率出现时刻,峰值前拐点位置表征燃烧始点.利用动态双阈值进行针阀落座信号时间检验,落座信号开始点表征落座时刻,峰值加速度...
|
| 关 键 词： | 气缸盖 振动信号 燃烧过程 故障诊断 |
Detection of Fuel Injection and Combustion Based on Cylinder Head Vibration for Diesel Engine |
| |
| SHI Yu-peng,LIU Jian-min,XU Shi-Yong,HE Li-feng.Detection of Fuel Injection and Combustion Based on Cylinder Head Vibration for Diesel Engine[J].Vehicle Engine,2011(3):74-82. |
| |
| Authors: | SHI Yu-peng LIU Jian-min XU Shi-Yong HE Li-feng |
| |
| Institution: | SHI Yu-peng1,LIU Jian-min1,XU Shi-Yong2,HE Li-feng2(1.The Academy of Armored Forces Engineering,Beijing 100072,China,2.China North Engine Research Institute,Datong 037036,China) |
| |
| Abstract: | The combustion stage signals of cylinder head vibration for a V-typed 12-cylinder diesel engine were analyzed.The time domain and frequency domain characteristics of injector needle valve seating and in-cylinder combustion response signal were studied.With the digital integration,the acceleration signal was transformed into the velocity signal.In the velocity signal,the peak,the peak position and the knee point before peak indicated the maximum pressure rise rate,the moment of maximum pressure rise rate and... |
| |
| Keywords: | cylinder head vibration signal combustion process fault diagnosis |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
