航空发动机叶尖间隙测量技术研究进展

Research Progress of Aero-engine Blade Tip Clearance Measurement Technology

系统介绍了国内外航空发动机叶尖间隙测量技术的研究进展,分析了这些技术的原理、特点及具体应用,并指出了发展方向。在此基础上,提出了适用于航空发动机高转速叶片在线监测的新方法,并介绍了一种可实现航空发动机叶片故障监测的膜片式高温光纤F-P声发射传感测量系统。

The research progresses of the techniques for measuring the tip clearance of aeroengine are introduced,and their principles,characteristics and specific applications are analyzed,and the development trends are pointed out.Based on this research,a new method for on-line monitoring of high-speed blades of aeroengines is proposed,and a diaphragm-type hightemperature optical fiber F-P acoustic emission sensing measurement system is introduced to achieve aero-engine blade fault monitoring.