航空发动机
航空髮動機
항공발동궤
AERO ENGINE
2012年
5期
36-42
,共7页
杨明绥%刘思远%王德友%武卉%李大鹏%刘莹
楊明綏%劉思遠%王德友%武卉%李大鵬%劉瑩
양명수%류사원%왕덕우%무훼%리대붕%류형
声共振%压气机%声模态%涡声相互作用%多物理场耦合%航空发动机
聲共振%壓氣機%聲模態%渦聲相互作用%多物理場耦閤%航空髮動機
성공진%압기궤%성모태%와성상호작용%다물리장우합%항공발동궤
acoustic resonance%compressor%,acoustic mode%vortex sound interaction%multi-physics coupling%aeroengine
航空发动机压气机声共振机理十分复杂,涉及到“气动-结构-声学”的多物理场耦合问题,能导致压气机叶片疲劳破坏,危害巨大,近年来已经成为国外压气机气动、振动、声学领域的研究热点。综述了国外流体诱发腔体发声机理的研究进展,分析了国外航空发动机压气机声共振的研究现状,总结了单级、多级压气机声共振现象的主要特征,并结合中国某型压气机的试验结果,进行了气动、振动、噪声等物理参数的特征分析,认为某型压气机虽然存在着某些独特的问题需要深入研究,但其故障特点与近年来国外开展的声共振现象具有很强的相似性,即认为该型压气机工作中可能存在声共振现象。
航空髮動機壓氣機聲共振機理十分複雜,涉及到“氣動-結構-聲學”的多物理場耦閤問題,能導緻壓氣機葉片疲勞破壞,危害巨大,近年來已經成為國外壓氣機氣動、振動、聲學領域的研究熱點。綜述瞭國外流體誘髮腔體髮聲機理的研究進展,分析瞭國外航空髮動機壓氣機聲共振的研究現狀,總結瞭單級、多級壓氣機聲共振現象的主要特徵,併結閤中國某型壓氣機的試驗結果,進行瞭氣動、振動、譟聲等物理參數的特徵分析,認為某型壓氣機雖然存在著某些獨特的問題需要深入研究,但其故障特點與近年來國外開展的聲共振現象具有很彊的相似性,即認為該型壓氣機工作中可能存在聲共振現象。
항공발동궤압기궤성공진궤리십분복잡,섭급도“기동-결구-성학”적다물리장우합문제,능도치압기궤협편피로파배,위해거대,근년래이경성위국외압기궤기동、진동、성학영역적연구열점。종술료국외류체유발강체발성궤리적연구진전,분석료국외항공발동궤압기궤성공진적연구현상,총결료단급、다급압기궤성공진현상적주요특정,병결합중국모형압기궤적시험결과,진행료기동、진동、조성등물리삼수적특정분석,인위모형압기궤수연존재착모사독특적문제수요심입연구,단기고장특점여근년래국외개전적성공진현상구유흔강적상사성,즉인위해형압기궤공작중가능존재성공진현상。
The acoustic resonance mechanism of aeroengine compressors was complicated, which related to the problem of multi- physics coupling for the aerodynamics-structure-acoustics. It became a hot research issue internationally in the fields of compressor aerodynamics, vibration and acoustics in recent years, because it might cause the fatigue failure of compressor blades. The international research development of flow-induced cavity sound mechanism was overviewed, the present research of international aeroengine acoustic resonance was analyzed, and the main features of the acoustic resonance for the single stage and multi-stage compressors were concluded. The feature analysis of physical parameters such as aerodynamics, vibration and acoustics was conducted in China. Some special problems are analyzed in compressor, but its failure features were similar with the acoustic resonance in foreign countries. The results show that the acoustic resonance may exist in the compressor operation.