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Novel wear monitoring method for transmission lubrication system of military aero-engine

A military aviation and lubrication system technology, which is applied in the directions of engine lubrication, engine viscosity, engine friction, etc., can solve the problems of inconvenient portability, large impact on test results, and increased difficulty in identifying the wear state of the aeroengine transmission lubrication system. , to achieve the effects of improving detection efficiency and detection accuracy, wide application, and reducing preparation time

Active Publication Date: 2021-09-21
中国人民解放军93208部队
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Problems solved by technology

However, spectral analysis is only effective for the detection of wear particles smaller than 10 microns. Although ferrography analysis is called a wide range of wear particle size detection, the ferrography analysis system is a laboratory precision equipment, and it is inconvenient to carry around; operating proficiency and professional level and other factors It has a great impact on the test results, which greatly increases the difficulty of identifying the wear state of the transmission lubrication system of the aero-engine

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  • Novel wear monitoring method for transmission lubrication system of military aero-engine
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  • Novel wear monitoring method for transmission lubrication system of military aero-engine

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Embodiment Construction

[0027] In order to better understand the improvements made by the present invention over the prior art, the technologies mentioned in the present invention will be described with reference to the accompanying drawings.

[0028] Monitor the whole process of wear and failure of the transmission lubrication system of military aeroengines, take regular oil samples and use analytical ferrography to analyze the abrasive particles in the lubricating oil. Among them, the bearings are deposited on the ferrographic sheet 6 hours, 3 hours, and 1 hour before the failure The abrasive particle chain is shown in Figure 2. From the abrasive particle chain, it can be seen that the wear failure of this type of engine transmission lubrication system is characterized by an abnormal increase in the number of abrasive particles of 10 to 20 microns, so the abrasive particle concentration of 10 to 20 microns can be used as the Sensitive characteristic parameters of engine wear.

[0029] If you want t...

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Abstract

The invention relates to a novel wear monitoring method for a transmission lubrication system of a military aero-engine, which comprises the following steps of determining sensitive parameters of loss efficiency and configuration parameters of detection equipment by monitoring and researching the whole wear failure process of a transmission lubrication system of a typical active-service aero-engine, and establishing wear state initial judgment based on an abrasive particle ferrography quantized value. According to a comprehensive fault diagnosis method combining abrasive particle image special identification and spectral analysis, rapid fault detection and fault diagnosis of the transmission lubrication system of the military aero-engine can be realized, and the use safety of the military aero-engine is guaranteed.

Description

technical field [0001] The invention relates to a new method for monitoring the wear and tear of the transmission and lubrication system of the military aero-engine. Through the monitoring and research on the whole process of the wear and failure of the transmission and lubrication system of the aero-engine, the sensitive parameters of the wear and tear failure and the configuration parameters of the detection equipment are determined, and the transmission and lubrication system of the military aero-engine is established. The alarm method and comprehensive diagnosis process based on the baseline and gradient values ​​of wear particle ferrogram quantitative values ​​in the lubrication system can realize rapid detection and diagnosis of faults in the transmission lubrication system of military aeroengines. Background technique [0002] There are many faults in the transmission and lubrication system of military aero-engines in my country, especially the main bearing failure. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16N29/04G01N15/00G01N15/10G01N21/25
CPCF16N29/04G01N15/10G01N15/00G01N21/25F16N2210/08F16N2250/36F16N2250/42
Inventor 赵雪红张生良杨立尉询楷杨洪何秀然李灏王浩吕永召
Owner 中国人民解放军93208部队
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