基于AMESim的气轨结构优化设计  

Structure Optimization Design of Common-rail Based on AMESim

作　　者：李新宇[1] 季雅文 张强[1] 

机构地区：[1]山东大学能源与动力工程学院,山东省济南市250061 [2]南京农业大学工学院,江苏省济南市210031

出　　处：《农业装备与车辆工程》2016年第9期28-31,共4页Agricultural Equipment & Vehicle Engineering

摘　　要：气轨在天然气直喷系统里起着稳定喷气压力的作用,直接影响着整个系统的性能。以天然气发动机高压共轨系统的压力稳定性和不同工况下的瞬态响应性为控制目标,分别研究了气轨内径、气轨出口内径以及气轨出口间距等结构参数的影响。利用AMESim搭建了合理的一维仿真模型,分析了共轨管结构参数在不同工况下对轨压和气嘴的影响,为系统的优化设计提供了参考。The common-rail plays the role of stabilizing injection pressure in the direct injection system and consequently af- fects the performance of entire system. In the high pressure natural gas engine, the pressure stability and the transient response under the different condition set as the control target, the influence of the structure parameter like common-rail inner diameter, inner diameter of the outlet and the out spacing are respectively studied. The suitable one-dimensional simulation model is built using AMESim, the influence of structural parameter on the common rail pressure and nozzle under different working conditions is analyzed, and a theoretical basis for system optimization design is provided.

关 键 词：燃气气轨 结构参数 仿真模型 AMESIM 

分 类 号：TK432[动力工程及工程热物理—动力机械及工程]