Aero-engine fault diagnosis method based on 5G edge calculation and deep learning

An aero-engine and edge computing technology, applied in neural learning methods, computer-aided design, computing, etc., can solve problems such as safety and efficiency hazards in aerial operations, harsh working environments, and reduced work performance, so as to improve storage and transmission speeds , reduce data transmission costs, and achieve ideal recognition results

Active Publication Date: 2021-06-18
ZHEJIANG UNIV CITY COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As the most important power component of an aero-engine, due to its complex mechanical structure and harsh working environment, its internal parts are prone to mechanical damage after a long period of use, which will greatly reduce its working performance. For example, its rotating mechanism Shafting parts (such as gears, bearings, etc.), under the failure of surface wear and other problems, it is easy to cause huge vibration and noise of engine components, reduce operating efficiency, and seriously cause damage to the entire unit, resulting in huge economic losses
Failure to accurately detect the occurrence of faults in real time will have a huge hidden danger to the safety and efficiency of aerial operations

Method used

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  • Aero-engine fault diagnosis method based on 5G edge calculation and deep learning
  • Aero-engine fault diagnosis method based on 5G edge calculation and deep learning
  • Aero-engine fault diagnosis method based on 5G edge calculation and deep learning

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Embodiment 1

[0052] An aero-engine fault diagnosis method based on 5G edge computing and deep learning, the process is as follows figure 1 shown, including the following steps:

[0053] Step 1. Data collection, preprocessing and storage based on the new 5G cloud-edge-terminal network architecture;

[0054] Step 1.1. Data collection: Build an aero-engine gear fault simulation platform, adopt edge computing technology (5G core technology), and arrange base stations in the edge network close to the aero-engine gear fault simulation platform for data collection, and data is directly processed at the edge of the network. Processing, transmission and storage to avoid the delay and loss caused by the data returning to the core network 2; the acceleration sensor installed on the aero-engine gear fault simulation platform collects the vibration signals of different types of gears in different positions and directions, and converts the vibration signals into Voltage signal; the number of time slots...

Embodiment 2

[0084] On the basis of Example 1, as figure 2 As shown, five different fault types (normal gear (a), broken tooth (b), missing tooth (c), tooth surface wear (d), tooth root crack) under the same sensor arrangement collected for the aero-engine gear fault simulation platform (e), the vibration signal data (the horizontal axis is the sampling time, the vertical axis is the conversion of the amplitude signal collected by the acceleration sensor into the voltage value), which can be added and deleted according to the specific situation), this data can also be obtained through the actual operation of the aero-engine. Collected real-time status data. The sampling frequency and sensor location arrangement set during data acquisition can be determined according to the actual situation. If necessary, in order to improve the accuracy of model training, other types of sensors such as acoustic sensors can be added. After obtaining the original data, data preprocessing is performed, miss...

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Abstract

The invention relates to an aero-engine fault diagnosis method based on 5G edge calculation and deep learning. The aero-engine fault diagnosis method comprises the following steps: data acquisition, preprocessing and storage are performed based on a 5G novel cloud edge network architecture; a machine learning module is constructed in the edge cloud, and historical data stored in the aero-engine fault database management system provides training samples for the machine learning module; and the aero-engine gear fault simulation platform and the aero-engine fault database management system perform intelligent self-management. The invention has the advantages that limited aero-engine fault data resources under a 5G emerging network architecture are utilized, calculation and storage resources are combined, the storage and transmission speed of mass operation data of the aero-engine can be increased, and a reliable basis is provided for aero-engine fault recognition; according to the invention, the convolutional neural network operation is directly carried out on the original one-dimensional vibration signal, the process is simple, rich signal processing expert experience is not needed, and the recognition effect is ideal.

Description

technical field [0001] The invention relates to the field of complex equipment fault diagnosis, in particular to the field of aero-engine fault diagnosis, and in particular to an aero-engine fault diagnosis method based on 5G edge computing and deep learning. Background technique [0002] Since the end of the 20th century, with the continuous development of 5G information technology, artificial neural networks have been increasingly used in the aerospace field due to their powerful parallel processing capabilities, nonlinear function approximation capabilities, and self-organization, self-learning, and self-adaptation characteristics. It has become one of the key means of fault diagnosis of aviation aircraft at this stage. [0003] As the most important power component of an aircraft, aero-engines are prone to mechanical damage to their internal parts after a long period of use due to their complex mechanical structure and harsh working environment, which will greatly reduce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06N3/04G06N3/08G06F111/10G06F119/04
CPCG06F30/27G06N3/04G06N3/08G06F2111/10G06F2119/04
Inventor 万安平杨洁袁建涛王景霖王文晖常庆缪徐黄佳湧杜翔
Owner ZHEJIANG UNIV CITY COLLEGE
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