Application of the Ultrasonic Oil Film Thickness Measurement System in Bearing Chambers
-
Chong Zhong
,
Zhen-xia Liu
Abstract
The oil film thickness in aero-engine bearing chamber influences the heat transfer capacity of the bearing chamber wall, so measuring oil film thickness accuspeedly is essential to the design and thermal analysis of lubricating oil system. In this paper, software and hardware of an ultrasonic measurement system based on pulse echo technique, which measures the oil film thickness in bearing chamber, are established. The hardware system mainly consists of signal acquisition card, probe, delay block and the corresponding cables. Functions as measurement parameter setup, real-time display of measured waveforms, post-processing and so on are included in the measurement software. Finally, the oil film thickness of the wall is measured with the measurement system developed. Signal quality of the dynamic measurement is analyzed. Comparison and analysis of different oil film thickness under different rotation rates are conducted.
©2014 by Walter de Gruyter Berlin/Boston
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- Experimental Investigation of the Loss Coefficients in a Linear Cascade
- Application of the Ultrasonic Oil Film Thickness Measurement System in Bearing Chambers
- Fatigue Lifetime Assessment of Aircraft Engine Disc via Multi-source Information Fusion
- Improvement on Main/backup Controller Switching Device of the Nozzle Throat Area Control System for a Turbofan Aero Engine
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Articles in the same Issue
- Frontmatter
- Analysis on Impulse Characteristics of PDRE with Exhaust Measurements
- Scramjet Propulsive Flowpath Design and Numerical Simulation
- Base Pressure Control with Annular Ribs
- Weighted Fuzzy Risk Priority Number Evaluation of Turbine and Compressor Blades Considering Failure Mode Correlations
- Effect of Compressibility on Contrail Ice Particle Growth in an Engine Jet
- Characteristics of Co-flow Jets from Orifices
- Experimental Investigation of the Loss Coefficients in a Linear Cascade
- Application of the Ultrasonic Oil Film Thickness Measurement System in Bearing Chambers
- Fatigue Lifetime Assessment of Aircraft Engine Disc via Multi-source Information Fusion
- Improvement on Main/backup Controller Switching Device of the Nozzle Throat Area Control System for a Turbofan Aero Engine
- Numerical and Experimental Investigation of Cavitating Characteristics in Centrifugal Pump with Gap Impeller
