基于NSGA-II算法的单缸机排放性能仿真优化  

Simulation and optimization of emission performance of single cylinder engine based on NSGA-II algorithm

作　　者：陈涛 向本杰[2] 官维[3] 樊海光 李剑华 刘星[2] CHEN Tao;XIANG Benjie;GUAN Wei;FAN Haiguang;LI Jianhua;LIU Xing(Yuchai Xinlan New Energy Power Technology Co.,Ltd.,Nanning 530009,Guangxi,China;Guangxi Yuchai Machinery Co.,Ltd.,Yulin 537005,Guangxi,China;School of Mechanical Engineering,Guangxi University,Nanning 530004,Guangxi,China;Yulin Inspection and Testing Institute,Yulin 537002,Guangxi,China)

机构地区：[1]玉柴芯蓝新能源动力科技有限公司,广西南宁530009 [2]广西玉柴机器股份有限公司,广西玉林537005 [3]广西大学机械工程学院,广西南宁530004 [4]玉林市检验检测研究院,广西玉林537002

出　　处：《柴油机设计与制造》2024年第2期1-5,共5页Design and Manufacture of Diesel Engine

基　　金：广西科技重大专项资助项目(桂科AA23062041);广西重点研发计划资助项目(桂科AB22080084)。

摘　　要：以1台单缸柴油机为研究对象,采用三维数值仿真模型结合反向传播(BP)神经网络和第2代非支配排序遗传(NSGA-II)算法优化喷油参数,实现单缸柴油机排放性能的多目标优化。结果表明:相较于方案A和方案C,烟尘与NO_(x)等权重平衡方案(方案B)的排放效果最佳,其烟尘和NO_(x)排放量较原机排放量分别降低了18.9%和22.3%。Taking a single cylinder diesel engine as the research object,3D numerical simulation model combined with back propagation(BP)neural network and the second generation non-dominated sorting genetic algorithm(NSGA-II)was used to optimize the injection parameters,so as to achieve the multi-objective optimization of the emission performance of the single cylinder diesel engine.Results show that compared with scheme A and scheme C,scheme B with equal weight balance of smoke and NO_(x) emissions shows the best emission effect,with smoke and NO_(x) emissions reduced by 18.9%and 22.3%respectively compared to the original machine emissions.

关 键 词：单缸机 排放性能优化 喷油参数 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程] TP18[自动化与计算机技术—控制理论与控制工程]