基于AVL-BOOST软件仿真平台建立某船用四缸柴油机仿真模型，标定后的模型进行柴油机全工况仿真计算。仿真出来的3 200组数据作为人工神经网络输入数据，采用贝叶斯统计方法对网络进行训练建立2层的反馈神经网络仿真模型。并分别通过实验、AVL-BOOST和神经网络数据曲线的对比分析，验证人工神经网络预测的准确性。利用验证好的人工神经网络模型预测进排气压力对柴油机转矩的影响，以及预测压缩比和供油定时对柴油机排放性能和动力性能的影响，最后利用扰动法分析不同工况下柴油机各个参数对柴油机性能的影响程度。
A four cylinder diesel engine simulation model was built based on AVL-BOOST software simulation platform, and the validated model was carried out to simulate the whole working condition of diesel engine. 3 200 sets of data were simulated as input data of artificial neural network, and the two layer feedback neural network simulation model which was trained by Bayesian statistical method, was established the network. The correctness of neural network is verified by the comparison of experiments, AVL-BOOST and neural network data. The influence of intake and exhaust pressure on the diesel engine torque is predicted by the ANN model, and the effects of compression ratio and fuel injection timing on the emission performance and dynamic performance of the diesel engine are predicted. Finally, the relative importance of each parameter on different engine performance and emission characteristics are investigated using perturbation method and most influential parameters on different outputs are obtained.
2017,39(4): 84-89 收稿日期：2016-08-18
DOI：10.3404/j.issn.1672-7619.2017.04.017
分类号：U664.142
基金项目：2016年广西教育厅中青年教师提升项目（KY2016YB473）；2014年国家自然科学基金资助项目（41466003）
作者简介：张志清(1982-),男,博士研究生,讲师,主要研究方向为电控柴油机控制。
参考文献：
[1] FROSINA E, SENATORE A, BUONO D, et al. A critical analysis on the lubrication circuit of a,non-road diesel engine by adop-ting a 3D and 1D approaches[J]. Energy Procedia, 2015, 81:794-804.
[2] NIKZADFAR K, SHAMEKHI A H. Investigating the relative contri-bution of operational parameters on performance and emissions of a common-rail diesel engine using neural network[J]. Fuel, 2014, 125:116-128.
[3] MATHER D K, REITZ R D. Modelling the influence of fuel injec-tion parameters on diesel engine emissions[R]. SAE Technical Paper, 1998.
[4] BIRTAS A, CHIRIAC R. A study of injection timing for a diesel engine operating with gasoil and HRG gas[J]. UPB Scientific Bulletin, Bucharest, 2011.
[5] 王存磊, 殷承良, 王磊. BOOST发动机建模及其在混合动力仿真中的应用[J]. 上海交通大学学报, 2011, 45(6):875-879.
[6] 朱钰, 张天野, 尹自斌, 等. 船用中速柴油机电控燃油喷射系统匹配[J]. 内燃机工程, 2015, 36(2):138-144.
[7] 尹自斌, 薛阳, 马海涛, 等. 某船用中速柴油机排放特性试验[J]. 中国航海, 2013(3):37-40.
[8] 乔英志. 4190型柴油机工作过程仿真与性能优化[D]. 厦门:集美大学, 2013.
