摘要
以某型车用发动机为研究对象,基于发动机仿真软件Gt-Suite建立了发动机工作过程及其冷却系统全耦合数值仿真模型,利用台架热平衡试验对该型发动机在外特性工况点下的功率、燃油消耗率和本体传热量进行了验证,结果表明该仿真模型具有良好的计算精度。通过改变模型环境边界条件,计算并分析了大气压力变化对该型发动机在最大扭矩工况和额定工况下本体传热量的影响。该研究可为提高车用发动机高原环境适应性及其技术改进研究提供理论依据。
An automobile engine was taken as research object. An integrated simulation model of the engine performance and its cooling system were built based on Gt-Suite software. The engine bench heat balance test was used to validate the power, specific fuel consumption and heat transfer rate of the engine body. The result proves that the integrated simulation model has fine accuracy during the calculation. The influence of atmospheric pressure change to the heat transfer rate of engine body under maximum torque condition and rated condition are calculated and analyzed by changing the environmental boundary condition of the integrated simulation model. This research can provide theory foundation for technique improvements of automotive engine in order to boost its plateau environmental adaptability.
出处
《农业装备与车辆工程》
2012年第8期1-3,9,共4页
Agricultural Equipment & Vehicle Engineering
基金
军队科研项目:2009WG01
关键词
发动机
全耦合仿真
大气压力
传热量
engine
integrated simulation
atmospheric pressure
heat transfer rate
