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

摘要:

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。

Abstract:

The research progresses of the techniques for measuring the tip clearance of aero-engine 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 high-temperature optical fiber F-P acoustic emission sensing measurement system is introduced to achieve aero-engine blade fault monitoring.