基于GT-Power柴油机颗粒物捕集器泄漏故障仿真与优化  

Simulation and Optimization of DPF Leakage Fault with GT-Power

作　　者：李振 姚广涛 伍恒[3] 张卫峰 王继佳 LI Zhen;YAO Guangtao;WU Heng;ZHANG Weifeng;WANG Jijia(Postgraduate Training Brigade, Army Military Transportation University, Tianjin 300161, China;Military Vehicle Department, Army Military Transportation University, Tianjin 300161, China;Department of Aircraft Engineering, Naval Aeronautical Engineering Academy, Yantai 264001, China)

机构地区：[1]陆军军事交通学院研究生管理大队,天津300161 [2]陆军军事交通学院军用车辆系,天津300161 [3]海军航空工程学院飞行器工程系,山东烟台264001

出　　处：《军事交通学院学报》2017年第11期35-39,共5页Journal of Military Transportation University

摘　　要：为研究柴油机颗粒物捕集器(DPF)泄漏问题,通过柴油机氧化催化转换器(DOC)与DPF并联,调节两者的流通面积比来反映DPF不同的泄漏程度,建立基于GT-Power软件的DPF泄漏故障仿真模型,测得仿真模型相应的排气背压以及排气温度等主要特征参数。再以排气阻力试验结果对仿真模型进行验证与优化,最后依靠发动机台架试验结果进一步验证优化后仿真模型的正确性。模拟结果表明:利用GT-Power软件建立的泄漏故障模型,来提取DPF泄漏故障排气背压以及排气温度等主要特征参数,是准确的、可靠的。To study the leakage fault of diesel particulate filter(DPF),by paralleling diesel oxidation catalyst(DOC)with DPF and regulating their flow area ratio to reflect the different leakage degree,the paper firstly establishes a simulation model of DPF leakage fault with GT Power software,and tests the main feature parameters of the model,such as exhaust back pressure and temperature.Then,it verifies and optimizes the simulation model with the result of exhaust resistance test,and proves the correctness of the optimized simulation model by engine bench test.The simulation result shows that establishing leakage fault model with GT Power software to extract the main feature parameters of DPF leakage fault is accurate and reliable.

关 键 词：柴油机 柴油机颗粒物捕集器(DPF) 泄漏故障 仿真与优化 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]