Starting Performance of Emergency Diesel Engines Based on Vibration Monitoring

China Mechanical Engineering

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Starting Performance of Emergency Diesel Engines Based on Vibration Monitoring

JIANG Zhinong1;MAO Zhiwei1;WANG Zijia2;BAO Binbin3;ZHANG Jinjie2

1.Diagnosis and Self-Recovering Engineering Research Center, Beijing University of Chemical Technology, Beijing,100029
2.Compressor Health and Intelligent Monitoring Center of State Key Laboratory of Compressor Technology, Beijing University of Chemical Technology, Beijing,100029
3.China Nuclear Power Operation Technology Co.,Ltd.,Wuhan, 430223

Online:2019-04-29 Published:2019-04-29

基于振动监测的应急柴油机启动性能分析方法

江志农1;茆志伟1;王子嘉2;包彬彬3;张进杰2

1. 北京化工大学高端机械装备健康监控与自愈化北京市重点实验室，北京，100029
2. 北京化工大学压缩机技术国家重点实验室压缩机健康智能监控中心，北京，100029
3.中核武汉核电运行技术股份有限公司，武汉，430223

基金资助:
国家重点研发计划资助项目（2016YFF0203305）；
中央高校基本科研业务费专项资金资助项目（JD1912/ZY1940）；
“双一流”建设专项经费资助项目（ZD1601）

Abstract

Abstract: Based on vibration monitoring an emergency starting performance analysis method was proposed to make up the shortcoming of the current analysis based on thermal parameters. The precise conversion of vibration signals from time domain to angle domain was implemented based on key phase and instantaneous rotational speed. An envelope method was carried out to extract the futures of transient vibration signals measured during start processes by which the smooth could be adjusted. These futures were capable to reflect the combustion states and the high pressure air working conditions. The grey evaluation method was introduced to monitor and evaluate the working capacity of single cylinder during startup. The results of the actual test verified the effectiveness of this method, and shown practical value for field applications.

Key words: emergency diesel engine, starting performance analysis, vibration monitoring, feature extraction

摘要： 提出了一种基于振动监测的应急柴油机启动性能分析方法，弥补当前仅基于热工参数进行分析的不足。基于键相和瞬时转速实现振动信号的准确整周期角域转化。提出了一种光滑程度可调的瞬态振动信号包络线提取方法，在应急柴油机启动过程的连续工作周期中，获得能够表征点火燃烧状态、高压启动空气冲气工作状态的特征参数，为分析机组启动特性与工作状态打下基础，并采用灰色评价法对单次启动中单缸做功能力进行了监测评估。核电现场实际测试结果验证了该方法对应急柴油机启动性能分析的有效性及推广应用的实用价值。

关键词: 应急柴油机, 启动性能分析, 振动监测, 特征提取

CLC Number:

TK427

JIANG Zhinong1;MAO Zhiwei1;WANG Zijia2;BAO Binbin3;ZHANG Jinjie2. Starting Performance of Emergency Diesel Engines Based on Vibration Monitoring[J]. China Mechanical Engineering.

江志农1;茆志伟1;王子嘉2;包彬彬3;张进杰2. 基于振动监测的应急柴油机启动性能分析方法[J]. 中国机械工程.

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Starting Performance of Emergency Diesel Engines Based on Vibration Monitoring

基于振动监测的应急柴油机启动性能分析方法

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