燃气涡轮试验与研究
燃氣渦輪試驗與研究
연기와륜시험여연구
GAS TURBINE EXPERIMENT AND RESEARCH
2013年
2期
38-41
,共4页
涡扇发动机%寿命试车%总体性能%性能老化%气路故障诊断
渦扇髮動機%壽命試車%總體性能%性能老化%氣路故障診斷
와선발동궤%수명시차%총체성능%성능노화%기로고장진단
turbofan engine%durability test%engine performance%performance deterioration%gas path fault diagnostics
在发动机直连管试车台上,模拟一定的飞行高度和飞行速度条件,对某型涡扇发动机进行了累计10 h以上的大推力状态寿命试车.采集了发动机性能参数和重要截面参数.对试验后的发动机进行分解,根据试验过程中发动机性能参数和重要截面参数变化情况,及发动机结构变化情况,总结出由于发动机部件性能老化引起的发动机总体性能下降规律.利用试车数据进行了故障诊断,验证了对发动机故障原因的分析,并给出了部件性能恶化量级,获得了对发动机工程实用具有指导意义的结论.
在髮動機直連管試車檯上,模擬一定的飛行高度和飛行速度條件,對某型渦扇髮動機進行瞭纍計10 h以上的大推力狀態壽命試車.採集瞭髮動機性能參數和重要截麵參數.對試驗後的髮動機進行分解,根據試驗過程中髮動機性能參數和重要截麵參數變化情況,及髮動機結構變化情況,總結齣由于髮動機部件性能老化引起的髮動機總體性能下降規律.利用試車數據進行瞭故障診斷,驗證瞭對髮動機故障原因的分析,併給齣瞭部件性能噁化量級,穫得瞭對髮動機工程實用具有指導意義的結論.
재발동궤직련관시차태상,모의일정적비행고도화비행속도조건,대모형와선발동궤진행료루계10 h이상적대추력상태수명시차.채집료발동궤성능삼수화중요절면삼수.대시험후적발동궤진행분해,근거시험과정중발동궤성능삼수화중요절면삼수변화정황,급발동궤결구변화정황,총결출유우발동궤부건성능노화인기적발동궤총체성능하강규률.이용시차수거진행료고장진단,험증료대발동궤고장원인적분석,병급출료부건성능악화량급,획득료대발동궤공정실용구유지도의의적결론.
More than 10 hours of high-power state durability test was accumulated on a turbofan engine. The test is conducted on a directly connected tube test cell which can simulate different flight altitudes and flight speeds. Performance parameters and important cross-section parameters were collected and the en?gine was decomposed after the test. The law of engine performance degradation caused by the aging of the engine parts performance was summarized based on the changes of performance parameters, important cross-section parameters and the structure of engine. Engine air path fault diagnostics was conducted using some test data to give approximate value of some component performance deterioration. The method and the?oretic analysis are referential for engineering application.
