CAJ | 학술논문

民用航空发动机的燃/滑油换热系统，对于发动机滑油系统及发动机的正常工作至关重要。利用Flow Simu-link软件，对某型发动机燃/滑油热交换系统进行建模，计算得到滑油系统回油路的温度值。与发动机地面台架运行工况、机上地面运行工况、飞行工况下的滑油温度测量值进行的对比和误差分析表明，燃/滑油热分析模型计算结果准确。在发动机各个运行工况，尤其是高温恶劣环境下，滑油系统的最大温度低于限制值，该型发动机滑油换热系统设计合理。
민용항공발동궤적연/활유환열계통，대우발동궤활유계통급발동궤적정상공작지관중요。이용Flow Simu-link연건，대모형발동궤연/활유열교환계통진행건모，계산득도활유계통회유로적온도치。여발동궤지면태가운행공황、궤상지면운행공황、비행공황하적활유온도측량치진행적대비화오차분석표명，연/활유열분석모형계산결과준학。재발동궤각개운행공황，우기시고온악렬배경하，활유계통적최대온도저우한제치，해형발동궤활유환열계통설계합리。
The fuel an d oil heat exchange system is important for the normal operation of civil engine and engine oil system. A fuel/oil heat exchange model was built using Flow Simulink software to calculate oil scavenge temperatures at different conditions. The comparison and error analysis between calculated and measured results in engine rig test, engine on-board test and flight test were completed. It is verified that the calculation results of fuel/oil heat exchange model are accurate for all engine operation; especially un-der extreme heat ambient condition, oil temperatures are lower than limitation, indicating that the design of civil engine fuel and oil heat exchange system is acceptable.