船用二冲程柴油机的性能故障模拟及分析  

Performance fault simulation and analysis of marine two-stroke diesel engine

作　　者：李方玉 胡以怀[1] 王欣 蒋佳炜 Li Fangyu;Hu Yihuai;Wang Xin;Jiang Jiawei(Merchant Marine College,Shanghai Maritime University,Shanghai 201306,China)

机构地区：[1]上海海事大学商船学院

出　　处：《中国舰船研究》2019年第S01期41-46,52,共7页Chinese Journal of Ship Research

摘　　要：[目的]大型船用二冲程柴油机故障数据难以通过实验等方法获得,准确获得在各种故障模式下柴油机主要热力参数的变化规律,对于建立智能船舶柴油机的故障诊断系统具有重要意义。[方法]以MAN 6S35 ME-B9船用电控二冲程柴油机实机参数为依据,在GT-Power软件中搭建其一维模型,利用实验数据对柴油机模型进行修正,获得柴油机正常工作状态下的计算模型,通过在模型中设置相关参数对柴油机典型故障进行模拟,并对不同环境温度下柴油机的工作过程进行模拟计算。[结果]通过对计算结果数据进行处理、分析,得到在各种故障及不同故障程度下柴油机热力参数和性能参数的变化规律,以及不同环境温度下热力参数的变化规律。[结论]研究成果可为智能船舶柴油机的故障诊断提供参考,为柴油机故障排除提供依据。[Objectives]The fault data of large-scale marine two-stroke diesel engines is difficult to obtain by experiments and other methods.How to accurately obtain the variation rules of main thermal parameters under various failure modes is of great significance for the establishment of fault diagnosis system for intelligent marine diesel engines.[Methods]Based on the actual parameters of MAN 6S35 ME-B9 marine electronically controlled two-stroke diesel engine,the one-dimensional model of the working process was built in GT-Power software,and the diesel engine model was corrected by experimental data to obtain the normal working condition of the diesel engine.The calculation model simulates typical diesel engine faults by setting relevant parameters in the model,and simulates the working process of diesel engines at different ambient temperatures.[Results]Through the processing and analysis of the calculation result data,the variation rules of thermal parameters and performance parameters of diesel engine faults and different fault degrees,and the variation rules of diesel engine thermal parameters under different environmental temperatures were obtained,[Conclusions]which provide a reference for the fault diagnosis of marine diesel engines and provide a basis for diesel engine troubleshooting.

关 键 词：GT-POWER软件 船用二冲程柴油机 整机模型 故障模拟 环境温度 

分 类 号：U664.121.1[交通运输工程—船舶及航道工程]