第45卷(2023)第3期Vol.45(2023)No.3柴油机DieselEngineDOI:10.12374/j.issn.1001-4357.2023.03.003船用中速柴油机预测模型的自动标定与优化刘岱1,李玉超1,刘龙1,马修真1,桂勇2,夏倩2(1.哈尔滨工程大学动力与能源工程学院,哈尔滨150001;2.中船动力研究院有限公司,上海200120)摘要:为解决柴油机预测模型参数过多导致的标定困难问题,采用遗传基因算法对搭建的船用中速机DIjet预测燃烧模型进行智能标定。借助最大缸内压力以及对应的曲轴转角快速完成缸压曲线标定,相较于传统手动标定,标定时间可缩短到几十分之一。在进行柴油机整体功率验证后,对NOx排放进行标定,形成一套简便可行的智能标定流程。在完成标定的模型上进行NOx排放及有效燃油消耗率(brakespecificfuelconsumption,BSFC)优化,在考虑两者不同权重系数的情况下得到更优的帕累托前沿面。关键词:中速柴油机;预测模型;遗传基因算法;自动标定;智能优化中图分类号:TK422文献标志码:A文章编号:1001-4357(2023)03-0014-06AutomaticCalibrationandOptimizationofPredictiveModelforMarineMediumSpeedDieselEngineLIUDai1,LIYuchao1,LIULong1,MAXiuzhen1,GUIYong2,XIAQian2(1.CollegeofPowerandEnergyEngineering,HarbinEngineeringUniversity,Harbin150001,China;2.ChinaShipbuildingIndustryPowerEngineeringInstituteCo.,Ltd.,Shanghai200120,China)Abstract:Inordertosolvethecalibrationdifficultiescausedbyexcessiveparametersinthedieselenginepredictionmodel,ageneticalgorithmwasusedtointelligentlycalibratethecombustionpredictionmodelDIjetforamarinemediumspeedengine.Byutilizingthemaximumcylinderpressureandcorrespondingcrankshaftangle,thecylinderpressurecurvecalibrationwasquicklycompleted,whichreducedthecalibrationtimetotheseveraltenthofitsoriginaltimecomparedtotraditionalmanualcalibration.Afterverifyingtheoverallpowerofthedieselengine,theNOxemissionswascalibratedtoformasimpleandfeasibleintelligentcalibrationprocess.TheNOxandbrakespecificfuelconsumption(BSFC)wasoptimizedonthecalibratedmodel,andabetterParetofrontsurfaceconsideringthedifferentweightcoefficientsofthetwowasobtained.Keywords:mediumspeeddieselengine;predictionmodel;geneticalgorithm;automaticcalibrat...