柴油机工作过程数值模拟  

Numerical Simulation Diesel Engine

作　　者：赵峰[1,2] 于洪亮[1,3] 王公胜 

机构地区：[1]大连海事大学轮机工程学院,辽宁大连116026 [2]江苏海事职业技术学院,南京211170 [3]集美大学轮机工程学院,福建厦门361021 [4]中海工业有限公司,上海201913

出　　处：《中国航海》2013年第4期59-63,共5页Navigation of China

摘　　要：建立了6S50MC柴油机系统的计算模型,讨论了系统模型建立的正确性和合理性。采用计算机数值模拟的方法,对模型进行了验证,并对常见故障进行了仿真模拟,解决了柴油机燃烧期延长及增压器效率下降等典型问题。定量分析了典型故障下柴油机缸内工质的主要性能参数随曲轴转角的变化情况,从而得出了典型故障下系统相关参数的变化趋势,进而为柴油机工作系统故障诊断提供重要依据。A computing model of 6S50MC marine diesel engine system is established,and its correctness and rationality are discussed and validated.Common malfunction are simulated with the model.The problems caused by typical faults such as the prolonged combustion period,the decreased turbocharger efficiency,are solved.The variations of main characteristics parameters of diesel engine cylinders in these typical faults are quantitatively analyzed.The relation between the tendency of the variations of relevant parameters and the occurrence of these typical faults is obtained so as to provide an important basis for the fault diagnosis of marine engine system.

关 键 词：船舶、舰船工程 船用柴油机 数值模拟 试验对比 故障分析 

分 类 号：U664.121[交通运输工程—船舶及航道工程] TK422[交通运输工程—船舶与海洋工程]