VSV系统对CFM56发动机喘振的影响分析

Research on VSV Faults Based CFM56 Engine Surge

航空发动机喘振是发动机衰退过程中的常发的故障,而发动机VSV系统的工作状态直接影响发动机的喘振裕度。以CFM56—3发动机的VSV系统为研究对象,讨论其工作机理,分析其对处于衰退期的CFM56—3发动机稳定工作的影响,提出相应的维修注意事项。从而为研究以VSV故障为诱因的喘振提供理论依据,为相关维修提供工程参考。

Engine surge is a common fault been found on deterioration CFM56—3 aero engine,and the variable stator vane system plays an important role on engine surge margin.Variable stator vane system in CFM56—3 engine was chose for the functional analysis,and control philosophy,VSV rig are discussed.At last interrelated maintenance engineering recommendations are given to ensure the deterioration CFM56—3 engine work properly.