摘要
采用面向对象的建模方法,根据独立性和物理划分原则对发动机缸内工作过程部分进行了模块化划分,利用多领域统一建模规范Modelica语言建立了天然气发动机单个气缸工作过程(包括缸内过程和换气过程)的仿真模型,仿真分析了2135天然气发动机在某些工况下的缸内压力和温度等参数,并将仿真压力与实验的测量数据进行对比,相对误差在合理的范围内,证明了该模型能够预测天然气发动机的缸内气体压力等重要的状态参数,为天然气发动机缸内工作过程的研究提供仿真基础。
This paper uses an object-oriented modeling approach to divide the working process ol an engine into several modules according to the principle of independence and physical integrality. A simulation model of the single cylinder working process of a natural gas engine, including in-cylinder process and gas exchange process, was built with Modelica, the gas pressure and temperature of the 2135 natural gas engine under some conditions were simulated by this model and compared with the experimental data. Relative errors were in reasonable range, proving that the model can predict some important state parameters in the cylinder of natural gas engine, such as gas pressure.This research provides a simulation method to research the workprocess of natural gas engines.
作者
李文辉
刘长铖
张子鉴
夏文
LI Wenhui;LIU Changcheng;ZHANG Zijian;XIA Wen(College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China)
出处
《应用科技》
CAS
2016年第4期11-15,共5页
Applied Science and Technology
关键词
天然气发动机
工作过程
仿真模型
气体压力
温度
natural gas engine
working process
simulation model
gas pressure
temperature
