基于改进共振解调技术的船舶柴油机拉缸磨损分析  

Wear analysis of marine diesel engine cylinder drawing based on improved resonance demodulation technology

作　　者：李勇[1] LI Yong(Jiangsu Maritime Institute,Nanjing 211370,China)

机构地区：[1]江苏海事职业技术学院,江苏南京211370

出　　处：《舰船科学技术》2022年第15期105-108,共4页Ship Science and Technology

基　　金：中国交通教育研究会重点课题(JTZD20-62)。

摘　　要：柴油发动机是船舶动力来源,其运行可靠性对于船舶至关重要。由于柴油发动机结构复杂,存在大量的摩擦和配合元件,当柴油机出现拉缸等异常故障时,其运行过程的振动信号会出现异常。本文研究的核心是利用改进共振解调技术和小波分析理论对船舶柴油机的振动信号进行采集和分析,设计一种在线式的船舶柴油机振动监测系统,建立柴油机摩擦磨损模型,详细介绍了在线式柴油机振动监测系统的构成和工作原理。The marine diesel engine is its power source,and its operation reliability is very important for the ship.Due to the complex structure of the diesel engine,there are a large number of friction and matching components.When the diesel engine has abnormal faults such as cylinder pulling,the vibration signal during its operation will be abnormal.The core of this paper is to use the improved resonance demodulation technology and wavelet analysis theory to collect and analyze the vibration signals of marine diesel engine,establish an online vibration monitoring system of marine diesel engine,establish the friction and wear model of diesel engine,and introduce the composition and working principle of online vibration monitoring system of diesel engine in detail.

关 键 词：柴油机 共振解调 拉缸磨损 振动监测 

分 类 号：U654.25[交通运输工程—港口、海岸及近海工程]