【摘 要】
：
A combustion system model of CNG-DI engine which was modified from a 2.0L diesel engine was built with software FIRE,the turbulence combustion model of CNG-
【机 构】
：
State Key Laboratory of Automotive Simulation and Control,Jilin University
论文部分内容阅读
A combustion system model of CNG-DI engine which was modified from a 2.0L diesel engine was built with software FIRE,the turbulence combustion model of CNG-DI engine was verified with the experimental result of CNG-DI optical engine,on the condition of unchanged 4 valves structure of original engine and the jet location,the spark plug was arranged between the two exhaust valves,the effect of different combustion chamber shapes on the microscopic physical fields such as turbulence characteristic in cylinder was simulated and studied,based on which the effect of combustion chamber shapes on the formation and combustion of mixture and the formation rule of NO was researched.
其他文献
Aspots damage risk evaluation method was proposed based on the spots axial and shears force.The spots damage risk index for a SUV BIW was calculated and eva
本文针对某SUV在正面碰撞过程中出现的车身乘员舱前地板与门槛、前地板外侧连接板搭接处大面积开焊导致的车身结构失稳问题,分析前纵梁的吸能模式及结构设计的不足,结合CAE仿
本文针对驻车制动拉线安装板在安装时变形量大,导致驻车制动产生干涉问题,利用正交试验设计,通过CAE方法研究了驻车制动支撑板中材料牌号、焊点、材料厚度3个结构优化影响因
本文主要研究汽车车身焊接匹配中的钣金件公差偏移现象.多层钣金件叠加焊接后会出现偏差累计现象.利用3DCS软件进行虚拟分析并通过钣金件公差偏移可有效规避这一问题.最后通
在保证某国产B 级轿车抗撞性的基础上进行了其前纵梁的轻量化设计。首先根据变形特征将前纵梁划分为5个子结构，并通过有限元分析获得各子结构的压溃力或弯曲力矩。以十二
本文针对某车型样车后纵梁在耐久道路试验中开裂的问题,从材料、焊接、静强度、耐久性能等方面进行原因分析.通过提高材料强度和改善结构进行了方案改善,并对改善方案进行了
为实现蓄电池支架轻量化的目的,本文通过CAE分析方法求得蓄电池支架一阶模态振型,并针对模态结果较低的问题,提出有效的模态提升方案;然后通过结构拓扑优化方法,优化蓄电池支
本文通过参数化的车身模型进行结构优化和轻量化设计.使用SFE Concept软件建立全参数化的白车身模型,然后进行拓扑优化,提高模态和刚度性能;确定拓扑结构之后进行尺寸优化,继
基于天然气发动机瞬态工况与稳态工况实验寻求出发动机稳态时排放最优的目标空燃比区间,以及发动机瞬态时更好地控制空燃比的方法.通过分析稳态时Nox、HC与CO排放量与空燃比
In order to explore the combustion performance of premixed charge induced ignition for dual fuel engine,an experiment was undertaken on CY25TQ diesel engine