船用柴油机非稳态振动信号分析系统  

Analysis system for unsteady state vibration signal of marine diesel engine

作　　者：戴魏魏 蒋倩 鲍海波 权国政[3] DAI Weiwei;JIANG Qian;BAO Haibo;QUAN Guozheng(Jiangsu Provincial Advanced Manufacturing Engineering Technology Research Center for Ship Power System Parts,Nanjing 211121,Jiangsu China;Nanjing COSCO Marine Equipment Parts Co.,Ltd.,Nanjing 211121,Jiangsu China;Chongqing University,Chongqing 400044,China)

机构地区：[1]江苏省船舶动力系统零件先进制造工程技术研究中心,江苏南京211121 [2]南京中远海运船舶设备配件有限公司,江苏南京211121 [3]重庆大学,重庆400044

出　　处：《锻压装备与制造技术》2023年第2期116-118,共3页China Metalforming Equipment & Manufacturing Technology

基　　金：江苏省工程技术研究中心项目(BM2021214)。

摘　　要：船舶柴油机作为一个多变复杂、多层次的动力系统,其表面振动信号直接受内部零部件工作状态的影响。非稳态振动信号可以用来反映系统内部的运行状况,从而可实时监测柴油机运行状况,因而,准确、多元的提取出振动信号特征是关键步骤。本文主要使用数据分析软件MATLAB对非稳态振动信号进行时域、频域特征参数提取,分析气阀磨损对振动信号的影响规律,并基于此构建船舶柴油机非稳态振动信号分析系统。As a complex and multi-level power system,the surface vibration signal of marine diesel engines is directly affected by the working status of internal components.The unsteady state vibration signals can be used to reflect the internal operating conditions of the system,thus enabling real-time monitoring of diesel engine operating conditions.Therefore,accurate and multivariate extraction of vibration signal features is a key step.The data analysis software MATLAB has been mainly used in the text to extract time-domain and frequency-domain characteristic parameters of unsteady vibration signals,analyze the impact of valve wear on vibration signals.Finally,a ship diesel engine unsteady vibration signal analysis system has been built based on this.

关 键 词：数据分析 非稳态振动信号 系统构建 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]