燃气涡轮试验与研究
燃氣渦輪試驗與研究
연기와륜시험여연구
GAS TURBINE EXPERIMENT AND RESEARCH
2014年
2期
37-40,58
,共5页
郝晓乐%申世才%齐海帆%高扬
郝曉樂%申世纔%齊海帆%高颺
학효악%신세재%제해범%고양
航空发动机%飞行试验%地面台架试验%主燃油流量%燃油总管压力%高压压气机后压力%主燃油计量开关位移
航空髮動機%飛行試驗%地麵檯架試驗%主燃油流量%燃油總管壓力%高壓壓氣機後壓力%主燃油計量開關位移
항공발동궤%비행시험%지면태가시험%주연유류량%연유총관압력%고압압기궤후압력%주연유계량개관위이
aero-engine%flight test%ground stand test%main fuel flow%pressure in the main fuel pipe%pressure after compressor%displacement of main fuel metering switch
单发飞机装配新型发动机试飞具有较高的风险，作为发动机重要性能参数的燃油流量，可在一定程度上反映发动机的潜在故障。为确保某型涡扇发动机飞行试验安全，需对发动机主燃油流量建立监控模型。利用地面台架试验数据，结合主燃烧室喷嘴和主燃油计量装置的工作特性，建立了主燃油流量监控模型，并与装机后的地面试验数据进行对比。结果表明，该监控模型有较高的准确性和通用性，能及时发现发动机可能存在的问题和故障，确保飞行试验安全。
單髮飛機裝配新型髮動機試飛具有較高的風險，作為髮動機重要性能參數的燃油流量，可在一定程度上反映髮動機的潛在故障。為確保某型渦扇髮動機飛行試驗安全，需對髮動機主燃油流量建立鑑控模型。利用地麵檯架試驗數據，結閤主燃燒室噴嘴和主燃油計量裝置的工作特性，建立瞭主燃油流量鑑控模型，併與裝機後的地麵試驗數據進行對比。結果錶明，該鑑控模型有較高的準確性和通用性，能及時髮現髮動機可能存在的問題和故障，確保飛行試驗安全。
단발비궤장배신형발동궤시비구유교고적풍험，작위발동궤중요성능삼수적연유류량，가재일정정도상반영발동궤적잠재고장。위학보모형와선발동궤비행시험안전，수대발동궤주연유류량건립감공모형。이용지면태가시험수거，결합주연소실분취화주연유계량장치적공작특성，건립료주연유류량감공모형，병여장궤후적지면시험수거진행대비。결과표명，해감공모형유교고적준학성화통용성，능급시발현발동궤가능존재적문제화고장，학보비행시험안전。
The flight test of single-engine aircraft installed with new engine was highly risky. As one of the important engine performance parameters, the fuel flow could reflect potential faults to a certain extent. A main fuel flow monitoring model of a turbofan engine should be established for the safety in the flight test. The monitoring model was established based on the data of bench test and the characteristic of the main fu-el metering devices, and was verified through comparing with the installed engine ground test data. The re-sults indicate that the monitoring model is accurate and common, and is capable of finding the potential faults and failures to ensure the safety of flight test.
